ʻO Brewster Windows me ka ʻole o ka noʻonoʻo ʻana o ka P-Polarization
Hoʻohana mau ʻia nā puka makani Brewster ma ke ʻano he polarizer i loko o nā lua laser.Ke hoʻonoho ʻia ma ke kihi o Brewster (55° 32′ ma 633 nm), e hele ana ka hapa P-polarized o ke kukui ma ka puka makani me ka nalowale ʻole, ʻoiai e ʻike ʻia kahi hapa o ka S-polarized mai ka puka makani Brewster.Ke hoʻohana ʻia i loko o kahi lua laser, hana maoli ka puka makani Brewster ma ke ʻano he polarizer.
Hāʻawi ʻia ka huina Brewster e
ʻeleʻele(θB) = nt/ni
θBʻo ka ʻaoʻao o Brewster
niʻO ia ka papa kuhikuhi o ka refraction o ka mea i hana ʻia, ʻo ia ka 1.0003 no ka ea
ntʻO ia ka papa kuhikuhi o ka refraction o ka mea hoʻouna, ʻo ia ka 1.45701 no ka silica fused ma 633 nm.
Hāʻawi ʻo Paralight Optics i nā puka makani Brewster i hana ʻia mai N-BK7 (Grade A) a i ʻole UV fused silica, ka mea i hōʻike ʻole i ka fluorescence laser-induced (e like me ke ana ʻana ma 193 nm), e lilo ia i koho kūpono no nā noi mai ka UV a i ka IR kokoke. .E ʻoluʻolu e ʻike i ka Graph e hōʻike ana i ka noʻonoʻo ʻana no ka S- a me ka P-polarization ma o UV fused silica ma 633 nm no kāu mau kuhikuhi.
Nā hiʻohiʻona:
Material:
N-BK7 a i ʻole UV Fused Silica Substrate
Ho'āʻo helu hōʻino ʻino Laser:
Paepae Poino Kiʻekiʻe (Kahu ʻole)
Nā Hana Hana Optical:
Zero Reflection poho no P-Polarization, 20% Reflection no S-Polarization
Nā noi:
He kūpono no ka Laser Cavities
Nā kikoʻī maʻamau:
Kii Kuhikuhi no
pukaaniani Brewster
Hōʻike ka kiʻi kuhikuhi ma ka hema i ka noʻonoʻo ʻana o ke kukui S-polarized a me ka lawe ʻana o ka kukui P-polarized ma o ka puka makani Brewster.E hoʻouna ʻia kekahi kukui S-polarized ma ka puka makani.
Nā ʻāpana
Nā pae a me nā hoʻomanawanui
-
Mea Papahana
N-BK7 (Papa A), UV i hoʻohui ʻia ke silica
-
ʻAno
ʻO ka puka makani Laser Flat a Wedged (poe, square, etc.)
-
Nui
Hana ʻia
-
Ka hoʻomanawanui ʻana
Maʻamau: +0.00/-0.20mm |Pono: +0.00/-0.10mm
-
mānoanoa
Hana ʻia
-
Hoʻomanawanui mānoanoa
Maʻamau: +/-0.20mm |Pono: +/-0.10mm
-
Mākaʻikaʻi Aperture
> 90%
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Hoʻolikelike
Ka pololei: ≤10 arcsec |Kiekie Kiekie: ≤5 arcsec
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ʻAno o ka ʻili (Scratch - Dig)
Ka pololei: 60 - 40 |Kiekie Kiekie: 20-10
-
Ka Palahalaha o ka Ili @ 633 nm
Pono: ≤ λ/10 |ʻO ka pololei kiʻekiʻe: ≤ λ/20
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Hapa Wavefront i laweia
≤ λ/10 @ 632.8 nm
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Chamfer
Mālama ʻia:< 0.5mm x 45°
-
Ka uhi ʻana
ʻAʻole i uhi ʻia
-
Nā Laulā nalu
185 - 2100 nm
-
Paepae Poino Laser
>20 J/cm2(20ns, 20Hz, @1064nm)
Nā kaha kiʻi
♦ Hōʻike ka pakuhi ma ka ʻākau i ka hoʻohālikelike helu ʻana o ka silica fused UV uncoated no ke kukui polarized ma nā kihi like ʻole o ka hanana (Ke hele nei ka reflectance no ke kukui P-polarized i ka ʻole ma ke kihi o Brewster).
♦ ʻOkoʻa ka papa kuhikuhi o ka refraction o UV fused silica me ka hawewe i hōʻike ʻia ma ka pakuhi lima hema (ka helu helu helu o ka refraction o UV fused silica ma ke ʻano he hana o ka nalu nalu mai 200 nm a 2.2 μm).
♦ Hōʻike ka pakuhi lima ʻākau ma lalo nei i ka waiwai i helu ʻia o θB (koki Brewster) ma ke ʻano he hana o ka lōʻihi hawewe mai 200 nm a i 2.2 μm ke hele ka mālamalama mai ka ea a i ka silica fused UV.
ʻO ka Index of refraction he Wavelongth Dependent
