Brewster Windows me te kore Whakaata i nga mate o te P-Polarization
Ko nga matapihi Brewster ka whakamahia hei polarizer i roto i nga kohao laser. Ina tuuhia ki te koki o Brewster (55° 32′ i te 633 nm), ka puta te wahanga P-polarized o te marama i roto i te matapihi me te kore e ngaro, ko te hautanga o te wahanga S-polarized ka whakaatahia mai i te matapihi Brewster. Ina whakamahia ana i roto i te kohao taiaho, ko te matapihi Brewster te tino mahi hei polarizer.
Ko te koki a Brewster i homai e
tan(θB) = nt/ni
θBko te koki o Brewster
niKo te taupū o te hurihanga o te takawaenga, ko te 1.0003 mo te hau
ntKo te taupū o te hurihanga o te reo tuku, ko te 1.45701 mo te silica whakakotahi i te 633 nm
Ko te Paralight Optics e tuku ana i nga matapihi Brewster he mea hanga mai i te N-BK7 (Grade A) me te UV fused silica ranei, e whakaatu tata ana karekau he reera-whakaawe taiaho (he ine ki te 193 nm), he mea pai mo nga tono mai i te UV ki te IR tata. . Titiro koa ki te Kauwhata e whai ake nei e whakaatu ana i te whakaata mo te S- me te P-polarization na roto i te hiraka tuitui UV i te 633 nm mo o tohutoro.
Āhuatanga:
Rauemi:
N-BK7 ranei UV Fused Silica Substrate
Whakamātautau Whakamātautau Tukino Taiaho:
Paepae Tukino Nui (Kaore i whakakikoruatia)
Mahinga Optical:
Kore Whakaata mate mo te P-Polarization, 20% Reflection mo te S-Polarization
Nga tono:
He pai mo nga Kohanga Taiaho
Whakatakotoranga noa:
Tuhi Tohutoro mo
Matapihi Brewster
Ko te tuhi tohutoro ki te taha maui e whakaatu ana i te whakaata o te rama S-polarized me te tuku o te rama P-polarized na roto i te matapihi Brewster. Ko etahi rama S-polarized ka tukuna ma te matapihi.
Tawhā
Awhe & Whakaaetanga
-
Rauemi Raupapa
N-BK7 (Kōeke A), te hiraka tuitui UV
-
Momo
Matapihi Taiaho Papatahi, Wedged ranei (porowhita, tapawha, aha atu)
-
Rahi
Whakariteritea
-
Whakaaetanga Rahi
Tikanga: +0.00/-0.20mm | Tikanga: +0.00/-0.10mm
-
Te matotoru
Whakariteritea
-
Whakaaetanga Matotoru
Tikanga: +/-0.20mm | Tikanga: +/-0.10mm
-
Maama tuwhera
> 90%
-
Whakarara
Tikanga: ≤10 arcsec | Tino Tino: ≤5 arcsec
-
Kounga Mata (Rakuraku - Keri)
Tikanga: 60 - 40 | Tino Tino: 20-10
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Papatahi Mata @ 633 nm
Tikanga: ≤ λ/10 | Pū teitei: ≤ λ/20
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Hapa Ngaru Whakawhiti
≤ λ/10 @ 632.8 nm
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Chamfer
Parea:<0.5mm x 45°
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Te paninga
Kore i pania
-
Nga awhe roangaru
185 - 2100 nm
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Paepae Tukino Taiaho
>20 J/cm2(20ns, 20Hz, @1064nm)
Kauwhata
♦ Ko te kauwhata ki te taha matau e whakaatu ana i te whakaatanga tatau o te hika karekau i whakakikoruatia o te UV mo te rama polarized i nga koki rereke o te paheketanga (Ko te whakaata mo te rama-P-polarized ka haere ki te kore i te koki o Brewster).
♦ Ko te taurangi o te hurihanga o te UV fused silica he rereke ki te roangaru e whakaatuhia ana i roto i te kauwhata-maui e whai ake nei (ko te taurangi tatau o te hurihanga o te UV fused silica hei mahi o te roangaru mai i te 200 nm ki te 2.2 μm).
♦ Ko te kauwhata-matau e whai ake nei e whakaatu ana i te uara tatau o te θB (koki Brewster) hei mahi mo te roangaru mai i te 200 nm ki te 2.2 μm i te wa e whiti ana te marama mai i te hau ki te hiraka tuitui UV.
Ko te Taurangi o te hurihanga ko te Roanga Ngaru Whakawhirinaki
