Overview
Polarization optics inoshandiswa kushandura mamiriro epolarization yechiitiko radiation. Yedu polarization optics inosanganisira polarizers, wave plates / retarders, depolarizers, faraday rotators, uye optical isolator pamusoro peUV, inooneka, kana IR spectral renji.
1064 nm Faraday Rotator
Yemahara-Space Isolator
High Power Nd-YAG Polarizer
Optical dhizaini inowanzotarisa pane wavelength uye kusimba kwechiedza, uku ichiregeredza polarization yayo. Polarization, zvisinei, chinhu chakakosha chechiedza sesaisai. Chiedza is electromagnetic wave, uye munda wemagetsi weiyi wave oscillates perpendicularly to the direction of propagation. Polarization state inotsanangura kutaridzika kwewave's oscillation maererano negwara rekuparadzira. Chiedza chinodaidzwa kuti unpolarized kana gwara remunda wemagetsi uyu richichinja-chinja nekufamba kwenguva. Kana kutungamira kwenzvimbo yemagetsi yechiedza yakanyatsotsanangurwa, inonzi polarized light. Iyo inonyanya kuzivikanwa mwenje wepolarized ndeye laser. Zvichienderana nemafambisirwo emunda wemagetsi, tinoisa mwenje wepolarized mumhando nhatu dzepolarizations:
★Linear polarization: the oscillation and propagation iri mundege imwe.Theelectric field of linearly polarized light canomiririra maviri perpendicular, akaenzana muamplitude, linear zvikamu zvisina mutsauko wechikamu.Mhedzisiro yemagetsi yechiedza inovharirwa kune imwe ndege pamwe chete negwaro rekuparadzira.
★Circular polarization: kutaridzika kwechiedza kunoshanduka nekufamba kwenguva nenzira yehelical. Munda wemagetsi wechiedza une zvikamu zviviri zvakatsetseka zviri perpendicular kune mumwe nemumwe, zvakaenzana muamplitude, asi zvine chikamu chakasiyana che π/2. Mhedzisiro yemagetsi emagetsi echiedza inotenderera mudenderedzwa yakapoteredza nzira yekuparadzira.
★Elliptical polarization: nzvimbo yemagetsi ye elliptically polarized light inotsanangura ellipse, ichienzaniswa nedenderedzwa ne circular polarization. Iyi ndima yemagetsi inogona kutariswa semusanganiswa wezvikamu zviviri zvemutsara zvine maamplitudes akasiyana uye/kana mutsauko wechikamu usiri π/2. Iyi ndiyo tsananguro yakajairika yechiedza chepolarized, uye denderedzwa uye mutsara polarized mwenje inogona kutariswa seyakakosha kesi dze elliptically polarized light.
Iwo maviri orthogonal Linear polarization nyika dzinowanzo kunzi "S" uye "P",ivozvinotsanangurwa nehukama hwavo hwekuita kune ndege yezviitiko.P-polarized chiedzairi kutenderedza parallel nendege iyi "P", ukuwo s-polarized mwenje une munda wemagetsi polarized perpendicular kune iyi ndege "S".Polarizerszvinhu zvakakosha zvemaziso zvekudzora polarization yako, kuendesa yaunoda polarization mamiriro uchiratidzira, uchitora kana kutsausa zvimwe. Kune akasiyana-siyana emhando dzepolarizer, imwe neimwe iine zvayakanakira nezvayakaipira. Kuti ikubatsire kusarudza yakanakisa polarizer yechishandiso chako, isu tichakurukura mataurirwo epolarizer pamwe negwara rekusarudza polarizer.
P uye S pol. zvinotsanangurwa nehukama hwavo hwekuita kune ndege yezviitiko
Polarizer Specifications
Polarizers inotsanangurwa neashoma akakosha paramita, mamwe acho akananga kune polarization optics. Iyo inonyanya kukosha parameters ndeiyi:
⊙Transmission: Ukoshi uhwu hungave hunoreva kutapurirana kwechiedza chelinearly polarized munzira yepolarization axis, kana kufambiswa kwechiedza chisina kuporeswa kuburikidza nepolarizer. Parallel kutapurirana ndiko kutapurirana kwechiedza chisina kuporeswa kuburikidza nemapolarization maviri ane maekisi epolarization anoenderana, ukuwo kuchinjika kuri kutapurirana kwechiedza chisina kuporeswa kuburikidza nemapolarizer maviri ane polarization axes akayambuka. Kune yakanaka polarizer kutapurirana kwe linearly polarized light parallel kune polarization axis i100%, parallel kutapurirana i50% uye kuyambuka kufambisa i0%. Chiedza chisina kuchena chinogona kutorwa sekukurumidza kusiyanisa kusanganiswa kwep- uye s-polarized mwenje. Iyo yakanaka mutsara polarizer inongoendesa imwe yeaya maviri mutsara polarizations, ichidzikisa yekutanga unpolarized intensity I.0nehafu, kureva,I=I0/2,saka parallel kutapurirana (kune unpolarized light) i50%. Kune linearly polarized chiedza chine intensity I0, kusimba kunopfuudzwa kuburikidza neakanaka polarizer, ini, inogona kutsanangurwa nemutemo waMalus, kureva,I=I0cos2Øuko θ ndiyo kona iri pakati pechiitiko mutsara polarization uye polarization axis. Isu tinoona kuti kune mademo akafanana, 100% kutapurirana kunowanikwa, nepo 90 ° mbezo, inozivikanwawo seyayambuka polarizers, kune 0% kutapurirana, saka kuyambuka kutapurirana i0%. Nekudaro mumashandisirwo epasirese-chaiwo kufambisa hakungambove chaiko 0%, saka, polarizers inoratidzwa nekutsakatika kwereshiyo sezvakatsanangurwa pazasi, iyo inogona kushandiswa kuona iyo chaiyo kutapurirana kuburikidza maviri akayambuka mapolarizer.
⊙Extinction Ratio uye Dhigirii rePolarization: Iyo polarizing zvimiro zvemutsetse polarizer zvinowanzotsanangurwa nechiyero chepolarization kana polarization kunyatsoita, kureva, P = (T.1-T2)/(T1+T2) uye chiyero chekutsakatika kwayo, kureva, ρp=T2/T1uko mafambisirwo makuru emwenje welinearly polarized kuburikidza nepolarizer ari T1 uye T2. T1 ndiyo yakanyanya kutapurirana kuburikidza nepolarizer uye inoitika kana iyo axis yekutapurirana yepolarizer inofanana neiyo polarization yechiitiko linearly polarized beam; T2 ndiyo idiki kutapurirana kuburikidza nepolarizer uye inoitika kana iyo axis yekufambisa yepolarizer iri perpendicular kune polarization yechiitiko mutsara polarized danda.
Kutsakatika kwemutsara wepolarizer kunowanzo kuratidzwa se 1 / ρp : 1. Iyi parameter inotangira kubva pasi pe100:1 (zvichireva kuti une ka100 kakapetwa ka100 kutapurirana kweP polarized light pane S polarized light) kune economic sheet polarizers kusvika ku106:1 yemhando yepamusoro birefringent crystalline polarizers. Hyero yekutsakatika inowanzosiyana newavelength uye kona yechiitiko uye inofanirwa kuongororwa pamwe chete nezvimwe zvinhu zvakaita semutengo, saizi, uye kutapurirana kwepolarized kune yakapihwa application. Pamusoro pekutsakatika kwechiyero, tinogona kuyera mashandiro epolarizer nekuratidza kugona. Dhigirii yepolarization inoshanda inonzi "contrast", iyi reshiyo inowanzoshandiswa kana uchifunga nezve low light application apo kurasikirwa kwakanyanya kwakakosha.
⊙Kona yekugamuchira: Iyo kona yekugamuchira ndiyo yakakura kutsauka kubva padhizaini chiitiko angle iyo polarizer ichiri kuita mukati mezvakatemwa. Mapolarizer mazhinji akagadzirwa kuti ashande pane incidence angle ye 0 ° kana 45 °, kana pakona yeBrewster. Iyo kona yekugamuchira yakakosha pakurongeka asi ine kukosha kwakanyanya kana uchishanda neasina-collimated matanda. Waya gidhi uye dichroic polarizers ane maekona makuru ekugamuchira, anosvika pakona yekugamuchira yakazara yeinoda kusvika 90°.
⊙Kuvaka: Polarizers anouya nenzira dzakawanda uye magadzirirwo. Matete film polarizers mafirimu matete akafanana neoptical filters. Polarizing plate beamsplitters matete, mahwendefa akatsetseka akaiswa pakona kune danda. Polarizing cube beamsplitters ine maviri ekurudyi kona maprism akaiswa pamwechete pa hypotenuse.
Birefringent polarizers ine maviri ekristaro maprism akaiswa pamwechete, uko kona yemaprism inotarwa neiyo chaiyo polarizer dhizaini.
⊙Bvunza rakajeka: Kuburikidza kwakajeka kunowanzo ganhurira birefringent polarizers sezvo kuwanikwa kwemakristasi akachena kunoganhura saizi yeaya mapolarizer. Dichroic polarizers ine makuru anowanikwa akajeka apertures sezvo magadzirirwo awo anokweretesa kune akakura saizi.
⊙Kureba kwenzira yeOptical: Chiedza chakareba chinofanira kufamba kuburikidza nepolarizer. Yakakosha pakupararira, kukuvadza zvikumbaridzo, uye zvimhingamipinyi zvenzvimbo, kureba kwenzira yekuona kunogona kuve kwakakosha mune birefringent polarizers asi kazhinji ipfupi mu dichroic polarizers.
⊙Kukuvadza chikumbaridzo: Iyo laser kukuvara chikumbaridzo inotemerwa nechinhu chinoshandiswa pamwe neiyo polarizer dhizaini, ine birefringent polarizers kazhinji ine yakanyanya kukuvadza chikumbaridzo. Simende ndiyo inowanzo konzeresa kukuvadzwa kwelaser, ndosaka yakasangana nemabeamsplitters kana air spaced birefringent polarizers ane yakakwirira kukuvara zvikumbaridzo.
Polarizer Selection Guide
Kune akati wandei marudzi epolarizer anosanganisira dichroic, cube, waya grid, uye crystalline. Hapana imwe mhando yepolarizer yakanakira kune yega application, yega yega ine yakasarudzika masimba uye kushaya simba.
Dichroic Polarizers inotapurirana chaiyo polarization nyika ichivharira vamwe vese. Kuvaka kwakajairika kunosanganisira imwechete yakavharwa substrate kana polymer dichroic firimu, yakasungirirwa mahwendefa maviri egirazi. Kana danda rechisikigo richipfuura nepakati peiyo dichroic zvinhu, imwe yeorthogonal polarization chikamu chedanda inonyudzwa zvine simba uye imwe inobuda isina kusimba kunyura. Saka, dichroic sheet polarizer inogona kushandiswa kushandura isina kurongeka polarized danda kuita mutsara polarized danda. Zvichienzaniswa ne polarizing prisms, dichroic sheet polarizer inopa saizi yakakura uye inogamuchirika angle.Kunyange iwe uchaona kutsakatika kwakanyanya kune mutengo reshiyo, iyo yekuvaka inomisa kushandiswa kwema lasers emagetsi epamusoro kana tembiricha yakakwira. Dichroic polarizers inowanikwa mumhando dzakasiyana-siyana, kubva pamutengo wakaderera welaminated film kusvika kune yakanyatso siyana polarizers.
Dichroic polarizers inotora iyo isingadiwe polarization mamiriro
Polarizing Cube Beamsplitters inogadzirwa nekubatanidza maviri ekurudyi kona maprism ane yakavharwa hypotenuse. Iyo polarizing coating inowanzovakwa nealternating layers epamusoro uye yakaderera index zvinhu zvinoratidzira S polarized light uye kutumira P. Chigumisiro matanda maviri orthogonal muchimiro chiri nyore kukwira uye kurongedza. Iyo polarizing coatings inogona kumira yakasimba density yemagetsi, asi zvinonamira zvinoshandiswa kuisa simende cubes zvinogona kutadza. Iyi yekutadza modhi inogona kubviswa kuburikidza ne optically kuonana. Nepo isu tichiwanzoona musiyano wepamusoro wedanda rinofambiswa, musiyano unoratidzwa unowanzo kuderera.
Wire grid polarizers inoratidzira tambo yewaya dzisingaoneki pagirazi substrate iyo inosarudzika kufambisa P-Polarized mwenje uye inoratidza S-Polarized mwenje. Nekuda kwechimiro chemuchina, waya grid polarizers inoratidzira wavelength bhendi iyo inoganhurirwa chete nekufambisa kweiyo substrate ichiita kuti ive yakakodzera kune Broadband application inoda yakanyanya kusiyana polarization.
Polarization perpendicular kune esimbi waya inopfuudzwa
Crystalline polarizer inotamisa inodiwa polarization uye kutsausa imwe neimwe nekushandisa birefringent zvimiro zvekristaro zvinhu zvavo.
Crystalline polarizers anoshandisa iyo birefringent zvivakwa zve substrate kushandura polarization mamiriro echiedza chiri kuuya. Zvishandiso zveBirefringent zvine ma indices akati siyanei erefraction yemwenje polarized mune dzakasiyana siyana zvichikonzera kuti nyika dzakasiyana dzepolarization dzifambe nemuzvinhu nekumhanya kwakasiyana.
Wollaston polarizers imhando yecrystalline polarizers iyo ine maviri birefringent ekurudyi kona maprism akasungirirwa pamwechete, kuitira kuti mbeu dzavo dzemaziso dzive perpendicular. Pamusoro pehupamhi hwekukuvadza chikumbaridzo checrystalline polarizers inoita kuti ive yakakodzera kune laser application.
Wollaston Polarizer
Paralight Optics 'yakakura mutsara wemapolarizers anosanganisira Polarizing Cube Beamsplitters, High Performance Two Channel PBS, High Power Polarizing Cube Beamsplitters, 56° Polarizing Plate Beamsplitters, 45° Polarizing Plate Beamsplitters, Dichroic Sheet Polarizers, Nanolaringizers Polarizers, Nanoparticles Polarizers Taylor Polarizers, Glan Laser Polarizers, Glan Thompson Polarizers, Wollaston Polarizers, Rochon Polarizers), Variable Circular Polarizers, uye Polarizing Beam Displacers / Combiners.
Laser Line Polarizers
Kuti uwane rumwe ruzivo nezve polarization optics kana kuwana quote, ndapota taura nesu.
