{"product_id":"polymer-homogenization-does-doe25h-1064-8-fts29","title":"Polymer Homogenization DOEs DOE25H-1064-8-FTS29","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThe DOE25H-1064-8-FTS29 is a polymer homogenization diffractive optical element (DOE) that converts a Gaussian input beam into a uniform square flat-top spot of 50×50 μm. The diffractive phase pattern is written in liquid crystal polymer on a Liquid Crystal Polymer\/Fused Silica Substrate substrate, so the element stays thin (Ø25.4×6 mm) while delivering \u0026gt;90% diffraction efficiency (FWHM). It works at 532 nm with a 6 mm incident spot (M2\u0026lt;1.3) and a 100 mm effective focal length, over a 15×15 mm clear aperture.\u003c\/p\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eLaser material processing and micromachining\u003c\/li\u003e\n  \u003cli\u003eFlat-top illumination and beam homogenization\u003c\/li\u003e\n  \u003cli\u003eLaser marking, drilling and surface texturing\u003c\/li\u003e\n  \u003cli\u003eMachine vision and structured illumination\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eConstruction \u0026amp; Performance\u003c\/h3\u003e\n\u003cp\u003eThe liquid-crystal-polymer layer is patterned lithographically and protected by the substrate window, which keeps the diffractive structure thin and light compared with a surface-relief element on bulk glass. Spot unevenness is \u0026lt;10% (RMS), transmittance is \u0026gt;97 % and the edge roll-off is 6 μm. The part expects a uniform polarization state and tolerates ±0.3 mm (±5% of input beam diameter) of eccentricity and ±5 ° of tilt. Key specifications for this model:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eComponent size:\u003c\/strong\u003e Ø25.4×6 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Wavelength:\u003c\/strong\u003e 532 nm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncident spot diameter:\u003c\/strong\u003e 6 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutput beam spot size:\u003c\/strong\u003e 50×50 μm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClear Aperture:\u003c\/strong\u003e 15×15 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutput beam shape:\u003c\/strong\u003e Square\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eComponent Material:\u003c\/strong\u003e Liquid Crystal Polymer\/Fused Silica Substrate\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSurface finish:\u003c\/strong\u003e 60\/40\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAR Coating:\u003c\/strong\u003e 532\/1064 nm dual-V anti-reflection coating\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReflectivity:\u003c\/strong\u003e Ravg \u0026lt; 0.25% (0° incidence angle)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTransmittance (@working wavelength):\u003c\/strong\u003e \u0026gt;97 %\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiffraction efficiency (FWHM):\u003c\/strong\u003e \u0026gt;90%\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUnevenness (RMS):\u003c\/strong\u003e \u0026lt;10%\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncident beam quality:\u003c\/strong\u003e M2\u0026lt;1.3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncident light spot polarization state:\u003c\/strong\u003e Uniform polarization state\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncident light eccentricity (XYdisplacement):\u003c\/strong\u003e ±0.3 mm (±5% of input beam diameter)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncident light tilt:\u003c\/strong\u003e ±5 °\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEdge Roll-Off (13.5% to 90%):\u003c\/strong\u003e 6 μm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEffective Focal Length (EFL):\u003c\/strong\u003e 100 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eStorage \u0026amp; Handling\u003c\/h3\u003e\n\u003cp\u003eHandle the DOE by its edges and keep the patterned polymer face clean; it is softer than a bare glass surface, so never wipe it dry or with abrasive tissue. Blow off loose particles first, then use optical-grade solvent with lens tissue only when necessary. Respect the specified incident spot size, beam quality and polarization state, and store the element in its original container in a clean, dry place away from direct sunlight and elevated temperature.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":48995286384794,"sku":"DOE25H-1064-8-FTS29","price":2476.87,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/4-FhJd8H0I6Zl_rEFoQ-p967QdKg9V_fdaae791-449e-400d-84cb-14a5e926c82f.jpg?v=1786439918","url":"https:\/\/waveqvanta.com\/products\/polymer-homogenization-does-doe25h-1064-8-fts29","provider":"WaveQuanta","version":"1.0","type":"link"}