Brewster Windows tsis muaj kev cuam tshuam kev poob ntawm P-Polarization
Brewster windows feem ntau yog siv los ua polarizers hauv cov kab noj hniav laser. Thaum muab tso rau ntawm Brewster lub kaum sab xis (55 ° 32′ ntawm 633 nm), P-polarized feem ntawm lub teeb yuav dhau los ntawm lub qhov rais tsis muaj kev poob, thaum ib feem ntawm S-polarized feem yuav tshwm sim tawm ntawm lub qhov rais Brewster. Thaum siv nyob rau hauv lub laser kab noj hniav, lub qhov rais Brewster yeej tseem zoo li ib tug polarizer.
Brewster lub kaum sab xis muab los ntawm
tus (θB) = nt/ni
θByog Brewster lub kaum sab xis
niyog qhov Performance index ntawm refraction ntawm qhov teeb meem nruab nrab, uas yog 1.0003 rau huab cua
ntyog qhov Performance index ntawm refraction ntawm transmitting nruab nrab, uas yog 1.45701 rau fused silica ntawm 633 nm
Paralight Optics muaj Brewster windows yog tsim los ntawm N-BK7 (Qib A) lossis UV fused silica, uas pom zoo tsis muaj laser-induced fluorescence (raws li ntsuas ntawm 193 nm), ua rau nws yog qhov kev xaiv zoo tshaj plaws rau kev siv los ntawm UV mus rau ze IR. . Thov saib cov duab hauv qab no uas qhia txog kev cuam tshuam rau S- thiab P-polarization los ntawm UV fused silica ntawm 633 nm rau koj cov ntaub ntawv.
Nta:
Khoom siv:
N-BK7 los yog UV Fused Silica Substrate
Laser Damage Quantification Test:
High Damage Threshold (Uncoated)
Optical Performances:
Zero Reflection poob rau P-Polarization, 20% Reflection rau S-Polarization
Daim ntawv thov:
Zoo tagnrho rau Laser Cavities
Common Specifications:
Reference Drawing rau
Brewster Qhov rai
Daim duab siv rau sab laug qhia txog qhov kev xav ntawm S-polarized lub teeb thiab kis ntawm P-polarized lub teeb los ntawm lub qhov rais Brewster. Qee lub teeb S-polarized yuav kis tau los ntawm lub qhov rais.
Tsis muaj
Ntau Yam & Tolerances
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Cov khoom siv substrate
N-BK7 (Qib A), UV fused silica
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Hom
Pav ca lossis Wedged Laser Qhov rai (puag ncig, square, thiab lwm yam)
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Loj
Kev cai tsim
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Loj Tolerance
Hom: +0.00/-0.20mm | Precision: +0.00/-0.10mm
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Thickness
Kev cai tsim
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Thickness kam rau ua
Hom: +/- 0.20mm | Precision: +/- 0.10mm
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Clear Aperture
> 90%
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Parallelism
Precision: ≤10 arcsec | Siab Precision: ≤5 arcsec
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Surface Quality (Scratch - Dig)
Precision: 60 - 40 | High Precision: 20-10
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Nto Flatness @ 633 nm
Precision: ≤ λ/10 | High precision: ≤ λ/20
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Transmitted Wavefront yuam kev
≤ λ/10 @ 632.8 nm
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Chamfer
Tiv thaiv:0.5 hli x 45 °
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Txheej
Uncoated
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Wavelength Ranges
185-2100 nm
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Laser Damage Threshold
> 20 J/cm2(20ns, 20Hz, @ 1064nm)
Cov duab
♦ Daim duab mus rau sab xis qhia tau hais tias kev xam pom ntawm cov tsis muaj xim UV fused silica rau lub teeb polarized ntawm ntau lub kaum sab xis ntawm qhov xwm txheej (Lub teeb pom kev rau P-polarized lub teeb mus rau xoom ntawm Brewster lub kaum sab xis).
♦ Qhov Performance index ntawm refraction ntawm UV fused silica sib txawv nrog wavelength qhia nyob rau hauv cov nram qab no sab laug-tes daim duab (lub xam qhov ntsuas ntawm refraction ntawm UV fused silica raws li ib tug muaj nuj nqi ntawm wavelength ntawm 200 nm mus rau 2.2 μm).
♦ Cov duab sab xis nram qab no qhia txog tus nqi ntawm θB (Brewster lub kaum sab xis) ua haujlwm ntawm lub wavelength ntawm 200 nm mus rau 2.2 μm thaum lub teeb dhau los ntawm huab cua mus rau UV fused silica.
Qhov ntsuas ntawm refraction yog Wavelength nyob ntawm
