Optical Windows: Cov Khoom, Cov Khoom, thiab Daim Ntawv Thov

Cov qhov rais kho qhov muag yog cov ntaub ntawv pob tshab uas xa lub teeb los ntawm lub tshuab kho qhov muag lossis ntsuas ntsuas thaum tiv thaiv cov khoom sab hauv. Cov qhov rais kho qhov muag muaj qhov tshwj xeeb kho qhov muag, kho qhov muag, thiab lub cev muaj zog los ua kom zoo dua kev sib kis thiab tiv taus ib puag ncig.

Lub hom phiaj tseem ceeb ntawm lub qhov rais kho qhov muag yog kom muaj lub pob tshab aperture rau qhov kev pom ntawm lub teeb thaum tsim ib qho kev thaiv lub cev ntawm qhov chaw sib txawv. Cov khoom uas xav tau muaj xws li kev sib kis tau zoo thoob plaws qhov dav wavelength, tsis tshua muaj absorbance thiab tawg poob, siab mechanical zog, thiab tshuaj tiv thaiv. Lub qhov rais cov khoom nqus cov yam ntxwv txiav txim siab qhov optical transmission bandwidth. Pom pom thiab ze-infrared kis tau tus mob yuav tsum muaj thaj tsam qis-absorption los ntawm kwv yees li 350-2000 nm.

Cov khoom siv kho qhov muag pom muaj xws li fused silica, sapphire, calcium fluoride, magnesium fluoride, thiab crystalline quartz. Fused silica muab cov khoom siv kho qhov muag tsis zoo thoob plaws hauv UV, pom, thiab ze-IR nrog cov tawv tawv thiab tshuaj lom neeg. Sapphire muaj qhov sib kis tau zoo sib xws thiab lub zog zoo dua tab sis ntawm tus nqi siab dua. Calcium thiab magnesium fluoride muaj kev sib kis tau zoo heev ntawm UV tab sis muaj zog dua. Quartz tuaj yeem npog UV-pom tab sis muaj qis IR txiav tawm.

Cov khoom siv lub qhov rais thiab tuab yog xaiv raws li daim ntawv thov wavelength ntau yam, txhua yam yuav tsum tau ua, kev ua haujlwm kub, thiab ib puag ncig ib puag ncig. Thicker windows muab lub zog ntau dua rau cov ntawv thov siab. Antireflection txheej tuaj yeem siv los txo cov kev cuam tshuam cuam tshuam thiab ua kom muaj kev sib kis ntau tshaj plaws. Lwm cov khaubncaws sab nraud povtseg ntxiv conductivity lossis kev tiv thaiv ib puag ncig.

Cov kev siv ntawm cov qhov rais kho qhov muag muaj xws li laser systems, spectrometers, sensors, microscopes, thiab fiber optic Cheebtsam. Qhov rais tiv thaiv thiab kaw cov tshuab kho qhov muag thaum sib txuas lub teeb kom zoo los ntawm qhov aperture. Kev xaiv lub qhov rais kom pom tseeb ua kom pom kev sib kis tau zoo thiab lub cev ua haujlwm rau lub hom phiaj kev ua haujlwm thiab lub neej.

Hauv cov ntsiab lus, cov qhov rais kho qhov muag tso cai rau cov cuab yeej thiab cov khoom siv los siv kev sib kis ntawm lub teeb thaum cais cov optics los ntawm ib puag ncig sab nraud. Cov khoom siv lub qhov rais ncaj qha cuam tshuam rau qhov ua tau zoo ntawm kev sib kis tau zoo bandwidth, lub cev muaj zog, thiab kev ua haujlwm tag nrho.