{"title":"THz Detection","description":"\u003cp\u003eThe complete coherent electro-optic sampling chain: electro-optic crystals, quarter-wave plates, Wollaston polarising prisms, balanced photodetectors and lock-in amplifiers. Electro-optic sampling recovers the full terahertz field waveform in the time domain, giving amplitude and phase simultaneously.\u003c\/p\u003e","products":[{"product_id":"your-trusted-partner-for-optoelectronic-experiments-pdbas1a2-dc","title":"Free-Space Balanced Photodetector PDBAS1A2-DC, UV-Enhanced Si, 190-1100 nm","description":"\u003cp\u003eThe Your Trusted Partner For Optoelectronic Experiments! PDBAS1A2-DC from WaveQuanta is a high-performance Spectrometers designed for optical spectrum analysis and wavelength measurement. Key specifications include design wavelength: 190~1100 nm, and operating temperature: 0 - 40 °C. Available from WaveQuanta with a lead time of 3 weeks. Sourced directly from WaveQuanta, this product meets the high standards required for scientific research and precision photonics applications.\u003c\/p\u003e\n\u003cp\u003eLead Time: 3 weeks\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable style=\"border-collapse: collapse; width: 100%;\"\u003e\n\u003cthead\u003e\u003ctr style=\"background: #f3f4f6;\"\u003e\n\u003cth style=\"text-align: left; padding: 8px; border: 1px solid #e5e7eb;\"\u003eParameter\u003c\/th\u003e\n\u003cth style=\"text-align: left; padding: 8px; border: 1px solid #e5e7eb;\"\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border: 1px solid #e5e7eb;\"\u003eDesign Wavelength\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border: 1px solid #e5e7eb;\"\u003e190~1100 nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border: 1px solid #e5e7eb;\"\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border: 1px solid #e5e7eb;\"\u003e0 - 40 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":47499819024538,"sku":"PDBAS1A2-DC","price":1762.52,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/PDBAS1A2-DC-card-square_6f7388f4-dea3-4a0d-9697-e2c958b6f718.jpg?v=1786344129"},{"product_id":"your-trusted-partner-for-optoelectronic-experiments-pdbas1c-dc","title":"Free-Space Balanced Photodetector PDBAS1C-DC, InGaAs, 800-1700 nm","description":"\u003cp\u003eThe Your Trusted Partner For Optoelectronic Experiments! PDBAS1C-DC from WaveQuanta is a high-performance Spectrometers designed for optical spectrum analysis and wavelength measurement. Key specifications include design wavelength: 800~1700 nm, and operating temperature: 0 - 40 °C. Available from WaveQuanta with a lead time of same day. Sourced directly from WaveQuanta, this product meets the high standards required for scientific research and precision photonics applications.\u003c\/p\u003e\n\u003cp\u003eLead Time: same day\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable style=\"border-collapse: collapse; width: 100%;\"\u003e\n\u003cthead\u003e\u003ctr style=\"background: #f3f4f6;\"\u003e\n\u003cth style=\"text-align: left; padding: 8px; border: 1px solid #e5e7eb;\"\u003eParameter\u003c\/th\u003e\n\u003cth style=\"text-align: left; padding: 8px; border: 1px solid #e5e7eb;\"\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border: 1px solid #e5e7eb;\"\u003eDesign Wavelength\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border: 1px solid #e5e7eb;\"\u003e800~1700 nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border: 1px solid #e5e7eb;\"\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border: 1px solid #e5e7eb;\"\u003e0 - 40 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":47499819155610,"sku":"PDBAS1C-DC","price":2799.31,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/PDBAS1C-DC-card-square_bb6197a3-f41b-4462-b20e-596f09efc080.jpg?v=1786344119"},{"product_id":"digital-lock-in-amplifier-melab","title":"Digital Lock-in Amplifier Melab","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eA lock-in amplifier recovers a small signal buried in noise by multiplying the input by a reference waveform and low-pass filtering the product. Only components of the input that are coherent with the reference in both frequency and phase survive; everything else averages to zero. This instrument covers DC to 1 MHz, samples at 100 MSa\/s and has an input voltage noise density below 2.4 nV per root hertz above 1 kHz.\u003c\/p\u003e\n\u003ch2\u003eRole in THz time-domain spectroscopy\u003c\/h2\u003e\n\u003cp\u003eThe chopper modulates the pump arm at a known frequency and supplies a TTL reference. The balanced photodetector output goes to the lock-in signal input. At each position of the delay line the lock-in returns the demodulated amplitude, which is proportional to the terahertz field at that particular delay. Stepping the delay line and recording the lock-in output therefore builds up the terahertz field waveform point by point, and a Fourier transform converts it into a broadband amplitude and phase spectrum.\u003c\/p\u003e\n\u003ch2\u003eChoosing the time constant\u003c\/h2\u003e\n\u003cp\u003eThe lock-in time constant sets the trade between noise rejection and scan speed. A longer time constant narrows the detection bandwidth and improves signal to noise, but the delay line must then dwell longer at each point. As a practical rule, allow at least five time constants of settling after each delay step before recording, and verify the choice by confirming that a repeat scan reproduces the waveform. A dynamic range of 40 to 60 dB is routinely achievable in a well-purged setup.\u003c\/p\u003e\n\u003ch2\u003eExpansion and synchronisation\u003c\/h2\u003e\n\u003cp\u003eThe instrument can be expanded to four demodulators, which allows simultaneous measurement at several harmonics of the chopping frequency or simultaneous monitoring of a reference channel. External 10 or 100 MHz clock input and output allow multiple instruments to share a common timebase, which matters when a delay stage controller, a data acquisition card and the lock-in must stay in step over a long scan. Optional PID functionality can be used to stabilise beam pointing or power in the pump arm.\u003c\/p\u003e\n","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":47499826200730,"sku":"Melab","price":11900.36,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/Melab-card-square_8ebe66ea-0d02-4e75-b14c-8b71046fcdf7.jpg?v=1786344108"},{"product_id":"wollaston-crystal-polarizing-prisms-wsp10-uv","title":"Wollaston Crystal Polarizing Prisms WSP10-UV","description":"\u003ch2\u003eWollaston Crystal Polarizing Prism — Model WSP10-UV\u003c\/h2\u003e\u003cp\u003e\u003cem\u003eWollaston polarizing prism, Laser-grade α-BBO, operating wavelength 200 nm – 1.1 μm, clear aperture Ø10 mm, extinction ratio 100000:1.\u003c\/em\u003e\u003c\/p\u003e\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eLBTEK Wollaston Crystal Polarizing Prisms split incident light into two orthogonally polarized beams diverging at a controlled angle. Made from Calcite\/α-BBO crystals, with operating wavelength 200 nm-2.3 μm (segmented). Beam deflection: 15° REF @1064 nm. Mounted in a Ø16 mm rotation mirror mount.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eExtinction ratio: 100000:1\u003c\/li\u003e\n\u003cli\u003eOperating wavelength: 200 nm – 1.1 μm\u003c\/li\u003e\n\u003cli\u003eMaterial: Laser-grade α-BBO\u003c\/li\u003e\n\u003cli\u003eStructure: Optical contact\u003c\/li\u003e\n\u003cli\u003eBeam deviation: \u0026lt;10 arcsec\u003c\/li\u003e\n\u003cli\u003eBeam deflection: 15° REF@1064 nm\u003c\/li\u003e\n\u003cli\u003eOptional AR coating: P coating@266 nm\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eLaser polarization control and beam separation\u003c\/li\u003e\n\u003cli\u003eHigh-power laser systems requiring stable extinction ratio\u003c\/li\u003e\n\u003cli\u003ePolarimetry and ellipsometry\u003c\/li\u003e\n\u003cli\u003eOptical isolation and Faraday rotator combinations\u003c\/li\u003e\n\u003cli\u003eImaging and spectroscopy with polarization discrimination\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":47499874173082,"sku":"WSP10-UV","price":1410.64,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/WSP10-UV-card-square_7e6bdca1-bbf2-4a58-a2a0-29bd4ab39688.jpg?v=1786344097"},{"product_id":"rigi-s2-thz-camera","title":"RIGI S2 THz Camera","description":"\u003ch2\u003eRIGI S2 THz Camera\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eReal-time Uncooled Terahertz Imaging Camera\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThe RIGI S2 is a real-time, USB-powered terahertz camera based on uncooled FPA micro-bolometer array technology. Equipped with an IR-blocking THz filter, it provides high-sensitivity imaging across the terahertz spectrum from below 1 THz to 18 THz.\u003c\/p\u003e\n\u003cp\u003eCompared to market alternatives, RIGI cameras are distinguished by much higher dynamic range and much lower thermal drift.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUncooled FPA micro-bolometer — no cryogenic cooling required\u003c\/li\u003e\n\u003cli\u003eUSB-powered with USB 3.0 digital output\u003c\/li\u003e\n\u003cli\u003eIR-blocking THz filter equipped (by QMC Inc, UK)\u003c\/li\u003e\n\u003cli\u003eReal-time imaging at 10\/30\/60 Hz frame rates\u003c\/li\u003e\n\u003cli\u003eUltra-compact design\u003c\/li\u003e\n\u003cli\u003eMuch higher dynamic range than market alternatives\u003c\/li\u003e\n\u003cli\u003eMuch lower thermal drift than market alternatives\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTHz beam profiling and focusing\u003c\/li\u003e\n\u003cli\u003eNon-destructive testing (NDT)\u003c\/li\u003e\n\u003cli\u003eIndustrial process control\u003c\/li\u003e\n\u003cli\u003eCompatibility with TDS spectrometers, QCL sources, PCA sources\u003c\/li\u003e\n\u003cli\u003eScientific research in terahertz spectroscopy and imaging\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Swiss Terahertz","offers":[{"title":"Default Title","offer_id":47705432359066,"sku":"RIGI-S2","price":0.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/RIGI-S2-card-transparent_6c81c8bd-817b-4b0c-b2b7-72a76de8ac85.png?v=1786346805"},{"product_id":"rigi-s2x-thz-camera","title":"RIGI S2X THz Camera","description":"\u003ch2\u003eRIGI S2X THz Camera\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eReal-time Uncooled Terahertz Imaging Camera\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThe RIGI S2X is a real-time, USB-powered terahertz camera based on uncooled FPA micro-bolometer array technology. Equipped with an IR-blocking THz filter, it provides high-sensitivity imaging across the terahertz spectrum from below 1 THz to 18 THz.\u003c\/p\u003e\n\u003cp\u003eCompared to market alternatives, RIGI cameras are distinguished by much higher dynamic range and much lower thermal drift.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e The S2X offers significantly higher low-frequency sensitivity compared to the S2 model.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUncooled FPA micro-bolometer — no cryogenic cooling required\u003c\/li\u003e\n\u003cli\u003eUSB-powered with USB 3.0 digital output\u003c\/li\u003e\n\u003cli\u003eIR-blocking THz filter equipped (by QMC Inc, UK)\u003c\/li\u003e\n\u003cli\u003eReal-time imaging at 10\/30\/60 Hz frame rates\u003c\/li\u003e\n\u003cli\u003eUltra-compact design\u003c\/li\u003e\n\u003cli\u003eMuch higher dynamic range than market alternatives\u003c\/li\u003e\n\u003cli\u003eMuch lower thermal drift than market alternatives\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTHz beam profiling and focusing\u003c\/li\u003e\n\u003cli\u003eNon-destructive testing (NDT)\u003c\/li\u003e\n\u003cli\u003eIndustrial process control\u003c\/li\u003e\n\u003cli\u003eCompatibility with TDS spectrometers, QCL sources, PCA sources\u003c\/li\u003e\n\u003cli\u003eScientific research in terahertz spectroscopy and imaging\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Swiss Terahertz","offers":[{"title":"Default Title","offer_id":47705432785050,"sku":"RIGI-S2X","price":0.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/RIGI-S2X-card-transparent_c8d4267b-a160-40d0-b336-f3e50518fd82.png?v=1786346793"},{"product_id":"rigi-m1-thz-camera","title":"RIGI M1 THz Camera","description":"\u003ch2\u003eRIGI M1 THz Camera\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eReal-time Uncooled Terahertz Imaging Camera\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThe RIGI M1 is a real-time, USB-powered terahertz camera based on uncooled FPA micro-bolometer array technology. Equipped with an IR-blocking THz filter, it provides high-sensitivity imaging across the terahertz spectrum from below 1 THz to 18 THz.\u003c\/p\u003e\n\u003cp\u003eCompared to market alternatives, RIGI cameras are distinguished by much higher dynamic range and much lower thermal drift.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUncooled FPA micro-bolometer — no cryogenic cooling required\u003c\/li\u003e\n\u003cli\u003eUSB-powered with USB 3.0 digital output\u003c\/li\u003e\n\u003cli\u003eIR-blocking THz filter equipped (by QMC Inc, UK)\u003c\/li\u003e\n\u003cli\u003eReal-time imaging at 10\/30\/60 Hz frame rates\u003c\/li\u003e\n\u003cli\u003eUltra-compact design\u003c\/li\u003e\n\u003cli\u003eMuch higher dynamic range than market alternatives\u003c\/li\u003e\n\u003cli\u003eMuch lower thermal drift than market alternatives\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTHz beam profiling and focusing\u003c\/li\u003e\n\u003cli\u003eNon-destructive testing (NDT)\u003c\/li\u003e\n\u003cli\u003eIndustrial process control\u003c\/li\u003e\n\u003cli\u003eCompatibility with TDS spectrometers, QCL sources, PCA sources\u003c\/li\u003e\n\u003cli\u003eScientific research in terahertz spectroscopy and imaging\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Swiss Terahertz","offers":[{"title":"Default Title","offer_id":47705432817818,"sku":"RIGI-M1","price":0.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/RIGI-M1-card-transparent_9f4a3edc-a56b-4278-a4ef-1dde55cb7ed8.png?v=1786346729"},{"product_id":"rigi-m2-thz-camera","title":"RIGI M2 THz Camera","description":"\u003ch2\u003eRIGI M2 THz Camera\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eReal-time Uncooled Terahertz Imaging Camera\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThe RIGI M2 is a real-time, USB-powered terahertz camera based on uncooled FPA micro-bolometer array technology. Equipped with an IR-blocking THz filter, it provides high-sensitivity imaging across the terahertz spectrum from below 1 THz to 18 THz.\u003c\/p\u003e\n\u003cp\u003eCompared to market alternatives, RIGI cameras are distinguished by much higher dynamic range and much lower thermal drift.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUncooled FPA micro-bolometer — no cryogenic cooling required\u003c\/li\u003e\n\u003cli\u003eUSB-powered with USB 3.0 digital output\u003c\/li\u003e\n\u003cli\u003eIR-blocking THz filter equipped (by QMC Inc, UK)\u003c\/li\u003e\n\u003cli\u003eReal-time imaging at 10\/30\/60 Hz frame rates\u003c\/li\u003e\n\u003cli\u003eUltra-compact design\u003c\/li\u003e\n\u003cli\u003eMuch higher dynamic range than market alternatives\u003c\/li\u003e\n\u003cli\u003eMuch lower thermal drift than market alternatives\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTHz beam profiling and focusing\u003c\/li\u003e\n\u003cli\u003eNon-destructive testing (NDT)\u003c\/li\u003e\n\u003cli\u003eIndustrial process control\u003c\/li\u003e\n\u003cli\u003eCompatibility with TDS spectrometers, QCL sources, PCA sources\u003c\/li\u003e\n\u003cli\u003eScientific research in terahertz spectroscopy and imaging\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Swiss Terahertz","offers":[{"title":"Default Title","offer_id":47705432883354,"sku":"RIGI-M2","price":0.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/RIGI-M2-card-transparent_4c5a15c0-db54-4178-b33f-e0677969ca0d.png?v=1786346716"},{"product_id":"rigi-m2t-thz-camera","title":"RIGI M2t THz Camera","description":"\u003ch2\u003eRIGI M2t THz Camera\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eReal-time Uncooled Terahertz Imaging Camera\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThe RIGI M2t is a real-time, USB-powered terahertz camera based on uncooled FPA micro-bolometer array technology. Equipped with an IR-blocking THz filter, it provides high-sensitivity imaging across the terahertz spectrum from below 1 THz to 18 THz.\u003c\/p\u003e\n\u003cp\u003eCompared to market alternatives, RIGI cameras are distinguished by much higher dynamic range and much lower thermal drift.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUncooled FPA micro-bolometer — no cryogenic cooling required\u003c\/li\u003e\n\u003cli\u003eUSB-powered with USB 3.0 digital output\u003c\/li\u003e\n\u003cli\u003eIR-blocking THz filter equipped (by QMC Inc, UK)\u003c\/li\u003e\n\u003cli\u003eReal-time imaging at 10\/30\/60 Hz frame rates\u003c\/li\u003e\n\u003cli\u003eUltra-compact design\u003c\/li\u003e\n\u003cli\u003eMuch higher dynamic range than market alternatives\u003c\/li\u003e\n\u003cli\u003eMuch lower thermal drift than market alternatives\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTHz beam profiling and focusing\u003c\/li\u003e\n\u003cli\u003eNon-destructive testing (NDT)\u003c\/li\u003e\n\u003cli\u003eIndustrial process control\u003c\/li\u003e\n\u003cli\u003eCompatibility with TDS spectrometers, QCL sources, PCA sources\u003c\/li\u003e\n\u003cli\u003eScientific research in terahertz spectroscopy and imaging\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Swiss Terahertz","offers":[{"title":"Default Title","offer_id":47705432948890,"sku":"RIGI-M2T","price":0.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/RIGI-M2T-card-transparent_9326d94b-fab0-4b26-b0e5-9f1a524e61b0.png?v=1786346708"},{"product_id":"rigi-m2t-with-external-trigger-thz-camera","title":"RIGI M2t with External Trigger THz Camera","description":"\u003ch2\u003eRIGI M2t with External Trigger THz Camera\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eReal-time Uncooled Terahertz Imaging Camera\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThe RIGI M2t with External Trigger is a real-time, USB-powered terahertz camera based on uncooled FPA micro-bolometer array technology. Equipped with an IR-blocking THz filter, it provides high-sensitivity imaging across the terahertz spectrum from below 1 THz to 18 THz.\u003c\/p\u003e\n\u003cp\u003eCompared to market alternatives, RIGI cameras are distinguished by much higher dynamic range and much lower thermal drift.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeature:\u003c\/strong\u003e Equipped with external trigger functionality for synchronized measurements.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUncooled FPA micro-bolometer — no cryogenic cooling required\u003c\/li\u003e\n\u003cli\u003eUSB-powered with USB 3.0 digital output\u003c\/li\u003e\n\u003cli\u003eIR-blocking THz filter equipped (by QMC Inc, UK)\u003c\/li\u003e\n\u003cli\u003eReal-time imaging at 10\/30\/60 Hz frame rates\u003c\/li\u003e\n\u003cli\u003eUltra-compact design\u003c\/li\u003e\n\u003cli\u003eMuch higher dynamic range than market alternatives\u003c\/li\u003e\n\u003cli\u003eMuch lower thermal drift than market alternatives\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTHz beam profiling and focusing\u003c\/li\u003e\n\u003cli\u003eNon-destructive testing (NDT)\u003c\/li\u003e\n\u003cli\u003eIndustrial process control\u003c\/li\u003e\n\u003cli\u003eCompatibility with TDS spectrometers, QCL sources, PCA sources\u003c\/li\u003e\n\u003cli\u003eScientific research in terahertz spectroscopy and imaging\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Swiss Terahertz","offers":[{"title":"Default Title","offer_id":47705432981658,"sku":"RIGI-M2T-TRIG","price":0.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/RIGI-M2T-TRIG-card-transparent_81a97521-7883-4c3d-8523-facbb3095e1b.png?v=1786346697"},{"product_id":"rigi-xl4-standard-thz-camera","title":"RIGI XL4 Standard THz Camera","description":"\u003ch2\u003eRIGI XL4 Standard THz Camera\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eReal-time Uncooled Terahertz Imaging Camera\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThe RIGI XL4 Standard is a real-time, USB-powered Megapixel-class terahertz camera based on uncooled FPA micro-bolometer array technology. Equipped with an IR-blocking THz filter, it provides high-sensitivity imaging across the terahertz spectrum from below 1 THz to 18 THz.\u003c\/p\u003e\n\u003cp\u003eCompared to market alternatives, RIGI cameras are distinguished by much higher dynamic range and much lower thermal drift.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUncooled FPA micro-bolometer — no cryogenic cooling required\u003c\/li\u003e\n\u003cli\u003eUSB-powered with USB 3.0 digital output\u003c\/li\u003e\n\u003cli\u003eIR-blocking THz filter equipped (by QMC Inc, UK)\u003c\/li\u003e\n\u003cli\u003eReal-time imaging at 10\/30\/60 Hz frame rates\u003c\/li\u003e\n\u003cli\u003eUltra-compact design\u003c\/li\u003e\n\u003cli\u003eMuch higher dynamic range than market alternatives\u003c\/li\u003e\n\u003cli\u003eMuch lower thermal drift than market alternatives\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTHz beam profiling and focusing\u003c\/li\u003e\n\u003cli\u003eNon-destructive testing (NDT)\u003c\/li\u003e\n\u003cli\u003eIndustrial process control\u003c\/li\u003e\n\u003cli\u003eCompatibility with TDS spectrometers, QCL sources, PCA sources\u003c\/li\u003e\n\u003cli\u003eScientific research in terahertz spectroscopy and imaging\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Swiss Terahertz","offers":[{"title":"Default Title","offer_id":47705433047194,"sku":"RIGI-XL4-STD","price":0.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/RIGI-XL4-STD-card-transparent_40c0e886-7d29-49ce-a2ed-14a0744f58ca.png?v=1786346683"},{"product_id":"rigi-xl4-premium-thz-camera","title":"RIGI XL4 Premium THz Camera","description":"\u003ch2\u003eRIGI XL4 Premium THz Camera\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eReal-time Uncooled Terahertz Imaging Camera\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThe RIGI XL4 Premium is a real-time, USB-powered Megapixel-class terahertz camera based on uncooled FPA micro-bolometer array technology. Equipped with an IR-blocking THz filter, it provides high-sensitivity imaging across the terahertz spectrum from below 1 THz to 18 THz.\u003c\/p\u003e\n\u003cp\u003eCompared to market alternatives, RIGI cameras are distinguished by much higher dynamic range and much lower thermal drift.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUncooled FPA micro-bolometer — no cryogenic cooling required\u003c\/li\u003e\n\u003cli\u003eUSB-powered with USB 3.0 digital output\u003c\/li\u003e\n\u003cli\u003eIR-blocking THz filter equipped (by QMC Inc, UK)\u003c\/li\u003e\n\u003cli\u003eReal-time imaging at 10\/30\/60 Hz frame rates\u003c\/li\u003e\n\u003cli\u003eUltra-compact design\u003c\/li\u003e\n\u003cli\u003eMuch higher dynamic range than market alternatives\u003c\/li\u003e\n\u003cli\u003eMuch lower thermal drift than market alternatives\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTHz beam profiling and focusing\u003c\/li\u003e\n\u003cli\u003eNon-destructive testing (NDT)\u003c\/li\u003e\n\u003cli\u003eIndustrial process control\u003c\/li\u003e\n\u003cli\u003eCompatibility with TDS spectrometers, QCL sources, PCA sources\u003c\/li\u003e\n\u003cli\u003eScientific research in terahertz spectroscopy and imaging\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Swiss Terahertz","offers":[{"title":"Default Title","offer_id":47705433112730,"sku":"RIGI-XL4-PRE","price":0.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/RIGI-XL4-PRE-card-transparent_889cb6c2-8776-477b-a4e5-6353faf22fd1.png?v=1786346671"},{"product_id":"thz-gap-electro-optic-sampling-crystal-110","title":"GaP (110) Electro-Optic Sampling Crystal, 10 x 10 x 0.3 mm","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eGaP is the workhorse electro-optic crystal for Yb-driven terahertz time-domain spectroscopy. Near 1 um the optical group index and the terahertz phase index in GaP are almost equal, so velocity matching is satisfied in the simplest possible collinear geometry with no tilted pulse front, no grating imaging and no wavelength conversion. This is the single most important reason why GaP is recommended as the first crystal for anyone building a standard terahertz time-domain spectrometer around a 1030 nm femtosecond source.\u003c\/p\u003e\n\u003ch2\u003eHow electro-optic sampling works\u003c\/h2\u003e\n\u003cp\u003eThe terahertz electric field induces a transient birefringence in the (110)-cut crystal via the Pockels effect. A co-propagating femtosecond probe pulse therefore acquires a small polarisation rotation proportional to the instantaneous terahertz field. A quarter-wave plate biases the probe to circular polarisation, a Wollaston prism splits it into two orthogonal components, and a balanced photodetector measures the difference. Scanning the probe delay reconstructs the full terahertz field waveform in the time domain; a Fourier transform then gives amplitude and phase spectra simultaneously, which is what allows direct extraction of the complex refractive index of a sample.\u003c\/p\u003e\n\u003ch2\u003eThickness trade-off\u003c\/h2\u003e\n\u003cp\u003eCrystal thickness sets a direct trade between sensitivity and bandwidth. A thicker crystal gives a longer interaction length and therefore a larger signal, but the velocity match holds over a narrower frequency range, so high-frequency components wash out and the detected spectrum is truncated. The 0.3 mm thickness supplied here is a practical compromise for standard time-domain spectroscopy; use 0.1 mm when the priority is bandwidth beyond about 4 THz, and 0.5 to 1 mm when the same material is used as an emitter.\u003c\/p\u003e\n\u003ch2\u003eAlignment notes\u003c\/h2\u003e\n\u003cp\u003eBoth the terahertz beam and the probe beam must be focused onto the same spot on the crystal, with the terahertz spot larger than the probe spot so the probe samples a uniform field. The (110) orientation is not rotationally symmetric: rotate the crystal about the beam axis to maximise the differential signal before optimising anything else. Keep the crystal in a purged enclosure together with the rest of the terahertz path, since water vapour absorption lines will otherwise dominate the measured spectrum.\u003c\/p\u003e\n","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":48986396721306,"sku":"WQ-THZ-GAP-EOS-10-03","price":0.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/WQ-THZ-GAP-EOS-10-03-photo-white-v2_523f0f7d-f9c4-4f99-90be-153c6f380f59.jpg?v=1786349365"},{"product_id":"thz-detector-crystals-mounted","title":"Mounted THz Detector Crystals for Electro-Optic Sampling","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eThese are electro-optic sampling crystals supplied ready-mounted in a carrier, so the fragile thin element is protected and can be dropped straight into a standard optic holder. Very thin electro-optic crystals are difficult to handle unmounted; pre-mounting removes the most common cause of breakage during a first build and makes the detection arm repeatable between users.\u003c\/p\u003e\n\u003ch2\u003eHow electro-optic sampling works\u003c\/h2\u003e\n\u003cp\u003eThe terahertz electric field induces a transient birefringence in the crystal. A co-propagating femtosecond probe pulse therefore picks up a small polarisation rotation proportional to the instantaneous terahertz field. A quarter-wave plate biases the probe to circular polarisation, a Wollaston prism splits it into two orthogonal components, and a balanced photodetector reads the difference. Scanning the probe delay reconstructs the field waveform in time, and the Fourier transform gives amplitude and phase together.\u003c\/p\u003e\n\u003ch2\u003eThickness sets the trade-off\u003c\/h2\u003e\n\u003cp\u003eA thicker crystal gives a longer interaction length and a larger signal, but the velocity match between the optical group velocity and the terahertz phase velocity holds over a narrower frequency range, so high-frequency components wash out. Thin crystals do the opposite. Choose thickness against the bandwidth the experiment actually needs rather than defaulting to the largest signal.\u003c\/p\u003e\n\u003ch2\u003eAlignment notes\u003c\/h2\u003e\n\u003cp\u003eOverlap the terahertz focus and the probe focus on the same spot, keeping the terahertz spot larger than the probe so the probe samples a uniform field. Electro-optic crystals are not rotationally symmetric: rotate the crystal about the beam axis to maximise the differential signal before optimising anything else. Keep the crystal inside the purged volume with the rest of the terahertz path.\u003c\/p\u003e\n","brand":"Swiss Terahertz","offers":[{"title":"Default Title","offer_id":48987922530458,"sku":"SWT-DETXTAL","price":0.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/SWT-DETXTAL-card-square_bcc08922-0a41-451b-912d-fdfc1be05af2.jpg?v=1786343891"},{"product_id":"thz-power-meter-uri","title":"Uri THz Power Sensor, Pyroelectric, \u003c 1 nW\/sqrt(Hz)","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eThe Uri sensor is a room-temperature pyroelectric power head for the terahertz band, with a noise equivalent power below 1 nW per root hertz. It measures total incident power rather than the field waveform, which makes it the practical instrument for the routine questions that come up every day on a terahertz beamline: is the source running at its usual level, did the last realignment help, how much power is the sample absorbing.\u003c\/p\u003e\n\u003ch2\u003eCoherent versus non-coherent detection\u003c\/h2\u003e\n\u003cp\u003eElectro-optic sampling gives the full field waveform with amplitude and phase, but it requires a probe beam, a delay line, a balanced detector and a lock-in, and it takes a scan to produce one measurement. A pyroelectric head gives a single number immediately and needs none of that. Most working terahertz labs use both: the power head for setup and monitoring, electro-optic sampling for the actual spectroscopy.\u003c\/p\u003e\n\u003ch2\u003eReading the output\u003c\/h2\u003e\n\u003cp\u003eThe analog output on SMA or BNC connects directly to an oscilloscope for a quick look, or to a lock-in amplifier referenced to an optical chopper when the signal is small. Chopping and lock-in detection are worth the extra hardware whenever the terahertz power approaches the noise floor, since they move the measurement away from low-frequency drift. A digital ADC output can be supplied if the sensor needs to feed a data acquisition chain directly.\u003c\/p\u003e\n\u003ch2\u003ePractical notes\u003c\/h2\u003e\n\u003cp\u003ePyroelectric detectors respond to changes in incident power rather than to a steady level, so a modulated or pulsed source is required; a continuous unmodulated beam will not give a stable reading. Keep the sensor face clean and avoid air currents across it, since the element also responds to thermal disturbance. Because the response is broadband, block residual near-infrared pump light before the sensor or the reading will include it.\u003c\/p\u003e\n","brand":"Swiss Terahertz","offers":[{"title":"Default Title","offer_id":48987925545114,"sku":"SWT-URI","price":0.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/SWT-URI-card-square_e2c481f3-2ceb-48d0-8a5c-988703064229.jpg?v=1786343880"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/collections\/wq-terahertz-detection-card.jpg?v=1786345951","url":"https:\/\/waveqvanta.com\/collections\/wq-terahertz-detection.oembed","provider":"WaveQuanta","version":"1.0","type":"link"}