Brewster Windows isina Reflection kurasikirwa kweP-Polarization
Mahwindo eBrewster anowanzo shandiswa se polarizer mukati me laser cavities. Kana yaiswa paBrewster's angle (55 ° 32′ pa633 nm), chikamu cheP-polarized chechiedza chichapfuura nepahwindo pasina kurasikirwa, asi chikamu cheS-polarized chikamu chichaonekwa kubva pahwindo reBrewster. Kana yakashandiswa mune laser cavity, iyo Brewster hwindo inonyanya kuita sepolarizer.
Kona yeBrewster inopiwa na
tan (θB) = nt/ni
θBikona yaBrewster
nindiyo indekisi yekuramba kweiyo chiitiko svikiro, iri 1.0003 yemhepo
ntndiyo indekisi yekuramba kweiyo inotapurirana svikiro, iri 1.45701 yeyakasanganiswa silica pa633 nm.
Paralight Optics inopa mahwindo eBrewster akagadzirwa kubva kuN-BK7 (Giredhi A) kana UV yakasanganiswa silica, inoratidzira isingaite laser-induced fluorescence (sekuyerwa pa193 nm), ichiita sarudzo yakanaka yekunyorera kubva kuUV kuenda kune iri pedyo IR. . Ndokumbira utarise Girafu rinoratidza kuratidza kune ese S- uye P-polarization kuburikidza neUV yakasanganiswa silica pa633 nm kune mareferensi ako.
Features:
Material:
N-BK7 kana UV Fused Silica Substrate
Laser Damage Quantification Test:
High Damage Threshold (isina kuvharwa)
Optical Performances:
Zero Reflection kurasikirwa kweP-Polarization, 20% Reflection yeS-Polarization
Applications:
Yakanakira Laser Cavities
Zvakajairwa Zvinodiwa:
Reference Drawing ye
Brewster Window
Kudhirowa kwereferenzi kuruboshwe kunoratidza kuratidzwa kwechiedza cheS-polarized uye kutapurirana kweP-polarized mwenje kuburikidza nehwindo reBrewster. Imwe S-polarized mwenje ichafambiswa nepahwindo.
Parameters
Ranges & Tolerances
-
Substrate Material
N-BK7 (Giredhi A), UV yakasanganiswa silica
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Type
Flat kana Wedged Laser Window (kutenderera, square, etc.)
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Size
Custom-yakagadzirwa
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Saizi Kushivirira
Yakajairika: +0.00/-0.20mm | Kunyatsojeka: +0.00/-0.10mm
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Ukobvu
Custom-yakagadzirwa
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Makobvu Tolerance
Yakajairika: +/-0.20mm | Kunyatsojeka: +/-0.10mm
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Clear Aperture
> 90%
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Parallelism
Kunyatsojeka: ≤10 arcsec | High Precision: ≤5 arcsec
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Hunhu hwepamusoro (Kukwenya - Dig)
Kururamisa: 60 - 40 | Kunyatsojeka: 20-10
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Surface Flatness @ 633 nm
Kunyatsojeka: ≤ λ/10 | Kurongeka kwepamusoro: ≤ λ/20
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Transmitted Wavefront Error
≤ λ/10 @ 632.8 nm
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Chamfer
Protected:<0.5mm x 45°
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Coating
Uncoated
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Wavelength Ranges
185 - 2100 nm
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Laser Kukuvadza Threshold
>20 J/cm2(20ns, 20Hz, @1064nm)
Magirafu
♦ Girafu riri kurudyi rinoratidza kuratidzwa kwakaverengerwa kweuncoated UV fused silica yechiedza chepolarized pamakona akasiyana ezviitiko (Kuratidzira kweP-polarized light kunoenda ku zero pakona yeBrewster).
♦ Indekisi yerefraction yeUV fused silica inosiyana newavelength inoratidzwa mune inotevera-kuruboshwe girafu (iyo yakaverengerwa index yerefraction yeUV fused silica sebasa rewavelength kubva ku200 nm kusvika 2.2 μm).
♦ Girafu inotevera yekurudyi inoratidza kukosha kwakaverengerwa kwe θB (Brewster's angle) sebasa rewavelength kubva pa200 nm kusvika 2.2 μm kana chiedza chiri kupfuura kubva kumhepo kuenda UV fused silica.
Iyo Index yerefraction ndeye Wavelength Dependent
