Silicon (Si) Infrared Lens nrog IR Anti-Reflection Coating

Kev Piav Qhia Luv:

Cov iav infrared silicon (Si) nrog IR anti-reflection coatingyog cov khoom siv kho qhov muag raug tsim los rau cov kab ke kho qhov muag infrared uas xav tau kev xa xov zoo, kev ruaj khov thermal, thiab kev ntseeg tau ntawm cov khoom siv. Siv cov khoom siv kho qhov muag ib leeg siv lead ua silicon thiab cov thev naus laus zis infrared coating siab heev, cov iav no tau ua kom zoo dua los txo qhov poob ntawm qhov muag thiab txhim kho kev ua haujlwm ntawm lub kaw lus hauv cov ntawv thov infrared uas xav tau.

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Cov yam ntxwv

Daim duab qhia ntxaws ntxaws

Kev Taw Qhia Si lens

Vim nws cov yam ntxwv ruaj khov ntawm kev xa hluav taws xob infrared thiab cov khoom zoo heev, silicon tau dhau los ua cov khoom siv dav dav rau kev tsim kho qhov muag nruab nrab infrared. Thaum ua ke nrog IR AR txheej txheem tsim kho kom zoo, cov iav silicon muab cov kev daws teeb meem pheej yig thiab ua tau zoo rau cov duab infrared niaj hnub thiab cov txheej txheem ntsuas.

Cov yam ntxwv ntawm cov khoom siv thiab kev ua tau zoo ntawm Si Lens

Silicon qhia txog kev sib kis infrared sib xws hauv1.2–8 μmwavelength ntau yam thiab tshwj xeeb tshaj yog zoo rau3–5 μm (MWIR)daim ntawv thov. Nws cov khoom siv lub cev sab hauv tso cai rau cov iav silicon kom tswj tau qhov muag thiab kev ruaj khov txawm tias nyob hauv qab kev ua haujlwm nyuaj.

Cov txiaj ntsig tseem ceeb ntawm cov khoom siv suav nrog:

Kev ua kom sov siab rau kev ua kom sov zoo
Muaj zog kho tshuab thiab tsis kam rau thermal shock
Qhov hnyav tsawg dua piv rau germanium, ua rau muaj kev tsim qauv compact
Kev ruaj khov zoo ntawm ib puag ncig thiab tshuaj lom neeg
Kev sib raug zoo nrog cov txheej txheem tsim khoom siv kho qhov muag meej

Cov yam ntxwv no ua rau cov iav silicon yog qhov kev xaiv zoo heev rau cov kab ke infrared uas yuav tsum ua haujlwm tau zoo rau lub sijhawm ntev lossis hauv qhov kub thiab txias hloov pauv.

Infrared Anti-Reflection Txheej Tsim Si lens

Vim tias silicon muaj cov ntsuas refractive siab, cov nplaim tsis muaj txheej txheem tuaj yeem ua rau muaj kev poob qis tseem ceeb. Txhawm rau daws qhov no,cov txheej txheem tiv thaiv kev cuam tshuam infraredtau siv rau ntawm qhov chaw ntawm lub lens los txhim kho kev ua haujlwm ntawm lub teeb.

Lub IR AR txheej yog tsim los rau:

Txo cov kev cuam tshuam Fresnel ntawm cov khoom sib txuas silicon-cua
Ua kom muaj kev sib kis zoo dua thoob plaws lub hom phiaj infrared band
Txhim kho qhov meej ntawm daim duab, qhov sib piv, thiab qhov rhiab heev ntawm kev ntes
Tshem tawm cov kev cuam tshuam tsis zoo hauv cov khoom sib dhos optical

Cov qauv tsim txheej txheem tuaj yeem ua kom zoo dua rau cov qhov ntev ntawm qhov ntev xws li3–5 μm (MWIR) or 8–12 μm (LWIR), nrog rau kev cai infrared bands txhais los ntawm lub kaw lus xav tau.

Kev Tsim Kho Qhov Muag thiab Kev Tsim Khoom Yooj Yim Si lens

Cov iav silicon infrared nrog IR AR txheej muaj nyob rau hauv ntau yam kev teeb tsa kho qhov muag los txhawb ntau yam kev tsim qauv:

Cov iav lo ntsiab muag plano-convex, plano-concave, bi-convex, thiab bi-concave
Cov duab geometries spherical thiab aspherical raws li koj xav tau
Ib sab lossis ob sab IR tiv thaiv kev cuam tshuam txheej
Kev txhuam kom raug rau qhov chaw tswj tau qhov ntxhib thiab qhov tsis zoo

Cov txheej txheem tsim khoom raug tswj hwm kom zoo kom ntseeg tau tias qhov ntev ntawm qhov muag pom, qhov tseeb ntawm qhov chaw, thiab kev ua haujlwm ntawm cov xim pleev. Cov qauv tsim tshwj xeeb raug txhawb nqa rau txoj kab uas hla, tuab, qhov nkhaus, kev kam rau siab, thiab cov lus qhia ntawm cov xim pleev.

Cov Cheeb Tsam Thov

Cov iav silicon nrog IR anti-reflection coating feem ntau siv rau hauv:

Cov duab thaij duab kub thiab cov duab pom kev infrared
Cov khoom siv ntsuas kub thiab ntsuas kub infrared
Cov khoom siv saib xyuas thiab tshuaj xyuas kev lag luam
Infrared spectroscopy thiab cov cuab yeej siv hauv chav kuaj
Kev xa khoom laser infrared thiab cov tshuab xa khoom optical

Lawv qhov kev ua tau zoo thiab kev ua haujlwm ntev ua rau lawv haum rau ob qho kev lag luam thiab kev lag luam infrared.

Cov Lus Qhia Txog Kev Siv - Silicon (Si) Lens nrog IR Anti-Reflection Coating

Cov Qauv	Cov Lus Qhia Tshwj Xeeb
Khoom siv	Qib Optical Ib Leeg Crystal Silicon (Si)
Kev Kis Tau Ntau Yam	1.2 – 8 μm
Cov Qib Siv Ib Txwm	3 – 5 μm (MWIR)
Xaiv tau Txheej Txheej	8 – 12 μm (LWIR), Kev Cai IR Bands
Refractive Index	~3.42 @ 3.9 μm
Hom Lens	Plano-Convex / Bi-Convex / Plano-Concave / Bi-Concave
Daim Duab Nto	≤ λ/10 @ 3.39 μm (muaj kev cai)
Qhov Zoo Ntawm Qhov Chaw	60/40 los yog 40/20 (Kos/Khaws)
Kev kam rau txoj kab uas hla	±0.02 hli (kev cai muaj)
Qhov Chaw Thickness Tolerance	±0.02 hli
Qhov Aperture Ntshiab	≥ 90% ntawm txoj kab uas hla
Qhov Roughness ntawm qhov chaw	≤ 5 nm RMS
Hom Txheej AR	Infrared Anti-Reflection (IR AR Txheej)
Kev Tsim Txheej	Ib-band lossis ntau-band IR AR
Qhov Nruab Nrab Reflectance (Ravg)	≤ 1.0% ib qho chaw (tsim wavelength)
Txheej Sab	Ib sab los yog ob sab
Kub Ua Haujlwm	-40 °C txog +200 °C
Kev Ua Kub	~150 W/m·K
Qhov Ceev	~2.33 g/cm³
Kev Ruaj Ntseg Ib puag ncig	Qib Kev Lag Luam
Kev Kho Kom Haum	Qhov loj, qhov ntev ntawm qhov focal, kev kam rau siab, txheej txheej muaj

Cov Lus Nug Feem Ntau - Silicon (Si) Lens nrog IR Anti-Reflection Coating

1. Silicon siv tau rau ntau qhov wavelengths li cas hauv cov ntawv thov infrared?

Cov iav silicon muab kev xa xov infrared zoo hauv1.2–8 μmwavelength ntau thiab feem ntau yog siv rau hauv3–5 μm (MWIR)band. Silicon tsis pom zoo rau cov ntawv thov pom lossis ze-pom vim nws txoj kev sib kis tsawg hauv cov cheeb tsam ntawd.

2. Vim li cas cov txheej txheem tiv thaiv IR tiv thaiv kev cuam tshuam thiaj li tsim nyog rau cov iav silicon?

Silicon muaj cov refractive index siab heev, uas ua rau muaj kev cuam tshuam loj heev rau ntawm cov iav tsis muaj txheej.IR tiv thaiv kev cuam tshuam (AR) txheejtxo cov kev poob ntawm kev cuam tshuam no, ua rau muaj kev sib kis tag nrho, thiab txhim kho qhov sib piv ntawm cov duab thiab qhov sib piv ntawm lub teeb liab thiab lub suab nrov hauv cov kab ke kho qhov muag infrared.

3. Cov txheej txheem AR txheej txheem twg tuaj yeem tsim rau cov kab hluav taws xob infrared?

Lub IR AR txheej tuaj yeem ua kom zoo dua rau ntau qhov wavelength sib txawv, suav nrog:

3–5 μm (MWIR)
8–12 μm (LWIR)
Kev cai infrared wavelength bands raws li qhov kev thov

Kev ua tau zoo ntawm cov txheej txheem tuaj yeem hloov kho raws li qhov xav tau tshwj xeeb ntawm lub kaw lus.

Txog Peb

XKH muaj kev txawj ntse hauv kev tsim khoom, kev tsim khoom, thiab kev muag khoom ntawm cov iav kho qhov muag tshwj xeeb thiab cov khoom siv siv lead ua tshiab. Peb cov khoom siv rau cov khoom siv hluav taws xob kho qhov muag, cov khoom siv hluav taws xob rau cov neeg siv khoom, thiab cov tub rog. Peb muab cov khoom siv kho qhov muag Sapphire, cov ntaub thaiv lub xov tooj ntawm tes, Ceramics, LT, Silicon Carbide SIC, Quartz, thiab semiconductor crystal wafers. Nrog kev txawj ntse thiab cov cuab yeej siv tshiab, peb ua tau zoo hauv kev ua cov khoom tsis yog tus qauv, lub hom phiaj yog ua lub tuam txhab ua khoom siv hluav taws xob kho qhov muag zoo tshaj plaws.