{"product_id":"ufi-kauai","title":"KAUAI — Vis-NIR Achromatic Phase Retarder \/ Quarter Waveplate (Negligible Dispersion)","description":"\u003cp\u003e\u003cstrong\u003eKAUAI is the perfect quarter waveplate for cutting-edge ultrafast applications.\u003c\/strong\u003e With its negligible dispersion across the visible–NIR range, KAUAI enables broadband polarization control without distorting the temporal profile of femtosecond pulses.\u003c\/p\u003e\n\u003cp\u003eThe retarder uses a reflective geometry that achieves a quarter-wave phase offset between s- and p-polarization components with virtually no added group-delay dispersion — making it ideal for few-cycle pulse experiments, time-resolved ellipsometry, magneto-optical Kerr effect (MOKE) measurements, and polarization-resolved spectroscopy.\u003c\/p\u003e\n\u003ch3\u003eKey Product Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eNegligible group-delay dispersion across full operating band\u003c\/li\u003e\n\u003cli\u003eVisible–NIR achromatic operation\u003c\/li\u003e\n\u003cli\u003eQuarter-wave phase shift between s and p polarization\u003c\/li\u003e\n\u003cli\u003eReflective design — no nonlinear bulk-material distortion\u003c\/li\u003e\n\u003cli\u003eCompact form factor\u003c\/li\u003e\n\u003cli\u003eSuitable for few-cycle pulse experiments\u003c\/li\u003e\n\u003cli\u003eCustomizable wavelength range upon request\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUltrafast polarization-resolved spectroscopy\u003c\/li\u003e\n\u003cli\u003eMagneto-optical Kerr effect (MOKE) experiments\u003c\/li\u003e\n\u003cli\u003eTime-resolved ellipsometry\u003c\/li\u003e\n\u003cli\u003eFemtosecond circular-dichroism measurements\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp style=\"font-size:0.875rem;color:#6b7280;\"\u003e\u003cem\u003eDeveloped at the Max-Planck-Institute of Quantum Optics. UFI is a spin-off from LMU Munich and the Max Planck Society.\u003c\/em\u003e\u003c\/p\u003e","brand":"UltraFast Innovations","offers":[{"title":"Default Title","offer_id":48038547161242,"sku":null,"price":0.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/UFI_KAUAI_d8ca01a4-0462-4a8c-ac61-9a7c088f9849.jpg?v=1778991330","url":"https:\/\/waveqvanta.com\/products\/ufi-kauai","provider":"WaveQuanta","version":"1.0","type":"link"}