Kakaretso
Polarization optics e sebelisetsoa ho fetola boemo ba polarization ea mahlaseli a kotsi.Li-optics tsa rona tsa polarization li kenyelletsa li-polarizers, li-wave plates / retarders, depolarizers, li-rotator tsa faraday, le li-isolators tsa mahlo holim'a mahlaseli a UV, a bonahalang, kapa a IR.
1064 nm Faraday Rotator
Isolator ea Sebaka sa Mahala
Matla a Phahameng a Nd-YAG Polarizer
Moralo oa Optical hangata o shebana le bolelele ba maqhubu le matla a khanya, ha o ntse o hlokomoloha polarization ea lona.Leha ho le joalo, polarization ke thepa ea bohlokoa ea khanya e le leqhubu.Leseli ke leqhubu la motlakase, 'me tšimo ea motlakase ea leqhubu lena le pota-potile ka tsela e fapaneng ho ea ho tataiso ea ho ata.Polarization state e hlalosa mokhoa oa ho sisinyeha ha leqhubu mabapi le tsela ea ho hasana.Leseli le bitsoa unpolarized haeba tataiso ea sebaka sena sa motlakase e fetoha ka tšohanyetso ka nako.Haeba tataiso ea tšimo ea motlakase ea leseli e hlalosoa hantle, e bitsoa leseli la polarized.Mohloli o atileng haholo oa leseli la polarized ke laser.Ho ipapisitsoe le sebaka sa motlakase, re arola leseli la polarized ka mefuta e meraro ea polarizations:
★Linear polarization: oscillation le propagation li ka sefofaneng se le seng.Thesebaka sa motlakase sa mabone a polarized linearly cho na le li-perpendicular tse peli, tse lekanang ka amplitude, linear dikarolo tse senang phapano ya mokgahlelo.Motlakase o hlahisoang ke sebaka sa khanya o kenngoa sefofaneng se le seng ka tsela ea ho hasana.
★Circular polarization: sebopeho sa lebone se fetoha ha nako e ntse e ea ka mokhoa oa helical.Sebaka sa motlakase sa leseli se na le likarolo tse peli tse nang le mela e pota-potileng, tse lekanang ka amplitude, empa li na le phapang ea mohato oa π/2.Tšimo ea motlakase e hlahisoang ke leseli e potoloha ka selikalikoe ho potoloha tataiso ea ho ata.
★Elliptical polarization: sebaka sa motlakase sa elliptically polarized light se hlalosa ellipse, ha se bapisoa le selikalikoe ka polarization e chitja.Sebaka sena sa motlakase se ka nkoa e le motsoako oa likarolo tse peli tsa mela e nang le li-amplitudes tse fapaneng le / kapa phapang ea mohato e seng π/2.Ena ke tlhaloso e akaretsang ka ho fetesisa ea leseli le polarized, 'me khanya e chitja le e melang e ka bonoa e le leseli le ikhethileng la elliptically polarized light.
Libaka tse peli tsa orthogonal Linear polarization hangata li bitsoa "S" le "P",bonali hlalosoa ka mokhoa oa tsona o lekanyelitsoeng ho sefofane sa liketsahalo.Leseli la P-polarizedhore oscillating parallel ho sefofane sena ke "P", ha s-polarized leseli le nang le tšimo ea motlakase polarized perpendicular sefofane sena ke "S".Li-polarizerske lintlha tsa bohlokoa tsa optical bakeng sa ho laola polarization ea hau, ho fetisetsa boemo bo lakatsehang ba polarization ha u ntse u nahanisisa, ho monya kapa ho kheloha tse ling kaofela.Ho na le mefuta e mengata e fapaneng ea polarizer, e 'ngoe le e' ngoe e na le melemo le mathata a eona.Ho o thusa ho khetha polarizer e ntle ka ho fetisisa bakeng sa ts'ebeliso ea hau, re tla tšohla lintlha tsa polarizer hammoho le tataiso ea khetho ea polarizer.
P le S pol.li hlalosoa ka mokhoa oa tsona o lekanyelitsoeng ho sefofane sa liketsahalo
Litlhaloso tsa Polarizer
Li-polarizer li hlalosoa ke li-parameter tse seng kae tsa bohlokoa, tseo tse ling tsa tsona li tobileng ho polarization optics.Li-parameter tsa bohlokoa ke tsena:
⊙Phetiso: Boleng bona bo bolela ho fetisoa ha leseli le nang le polarized ka tsela ea polarization axis, kapa phetiso ea leseli le sa tsitsang ka polarizer.Phetiso e ts'oanang ke phetiso ea leseli le se nang polarized ka li-polarizer tse peli tse nang le lilepe tsa tsona tsa polarization tse tsamaellanang, ha phetisetso ea ho tšela e le phetiso ea leseli le se nang polarized ka li-polarizer tse peli ka lilepe tsa tsona tsa polarization.Bakeng sa li-polarizers tse loketseng phetisetso ea leseli le nang le polarized e bapileng le axis ea polarization ke 100%, phetisetso e bapileng ke 50% mme phetiso e fetelletseng ke 0%.Leseli le se nang polarized le ka nkoa e le motsoako o fetohang ka potlako oa p- le s-polarized light.Polarizer e nepahetseng e tla fetisa e 'ngoe ea li-polarizations tse peli feela, e fokotsa matla a pele a se nang polarized I.0ka halofo, ke hore,Ke=ke0/2,kahoo phetiso e ts'oanang (bakeng sa leseli le se nang polarized) ke 50%.Bakeng sa leseli la polarized le nang le matla I0, matla a fetisoang ka polarizer e loketseng, I, e ka hlalosoa ke molao oa Malus, ke hore,Ke=ke0cos2Ømoo θ e leng sekhutlo se pakeng tsa ketsahalo ea linear polarization le axis polarization.Rea bona hore bakeng sa lilepe tse tšoanang, phetisetso ea 100% e finyelloa, athe bakeng sa lilepe tsa 90 °, tse tsejoang hape e le li-polarizers tse tšelang, ho na le phetiso ea 0%, kahoo phetisetso e tšetsoeng ke 0%.Leha ho le joalo lits'ebetsong tsa 'nete tsa lefats'e phetisetso e ne e ke ke ea hlola e e-ba 0%, ka hona, li-polarizers li tšoauoa ka karolelano ea ho timela joalo ka ha ho hlalositsoe ka tlase, e ka sebelisoang ho fumana hore na phetiso ea nnete ke efe ka li-polarizer tse peli tse tšelang.
⊙Karolelano ea Phello le Tekanyo ea Polarization: Thepa ea polarization ea linear polarizer hangata e hlalosoa ke boemo ba polarization kapa polarization, ke hore, P=(T).1-T2)/(T1+T2) le karo-karolelano ea ho fela ha eona, ke hore, ρp=T2/T1moo liphatlalatso tse ka sehloohong tsa leseli le polarized ka polarizer e leng T1 le T2.T1 ke phetisetso e phahameng ka ho fetisisa ka polarizer mme e etsahala ha sebaka sa phetiso sa polarizer se ts'oana le polarization ea ketsahalo linearly polarized beam;T2 ke phetisetso e fokolang ka polarizer mme e etsahala ha sebaka sa phetisetso sa polarizer se lebelletse ho polarization ea ketsahalo ea mola oa polarized beam.
Ts'ebetso ea ho timela ha polarizer e melang hangata e hlalosoa e le 1 / ρp : 1. Paramethara ena e tloha ho tlase ho 100:1 (ho bolelang hore o na le phetiso e fetang makhetlo a 100 bakeng sa khanya ea P polarized ho feta S polarized light) bakeng sa li-sheet polarizers tsa moruo ho isa ho 10.6:1 bakeng sa li-polarizer tsa boleng bo holimo tsa birefringent crystalline.Karolelano ea ho timela hangata e fapana ho ea ka wavelength le angle ea ketsahalo 'me e tlameha ho hlahlojoa hammoho le lintlha tse ling tse kang litšenyehelo, boholo, le phetisetso ea polarized bakeng sa ts'ebeliso e itseng.Ntle le karo-karolelano ea ho timela, re ka lekanya ts'ebetso ea polarizer ka ho bonts'a katleho.Tekanyo ea polarization e sebetsang hantle e bitsoa "contrast", karo-karolelano ena e atisa ho sebelisoa ha ho nahanoa ka lisebelisoa tse tlaase tsa leseli moo tahlehelo ea matla e leng ea bohlokoa.
⊙Lehlakore la ho amohela: Lehlakore la kamohelo ke kheloho e kholo ho fetisisa ho tloha ho sebopeho sa sebopeho sa sebopeho moo polarizer e ntseng e tla sebetsa ka har'a litlhaloso.Li-polarizer tse ngata li etselitsoe ho sebetsa ka incidence angle ea 0° kapa 45°, kapa ka lehlakoreng la Brewster.Lehlakore la ho amohela le bohlokoa bakeng sa ho tsamaisana empa le bohlokoa haholo ha le sebetsa ka maballo a sa kopanngoeng.Mohala oa terata le li-polarizers tsa dichroic li na le li-angles tse kholo ka ho fetisisa tsa ho amohela, ho fihlela tekanyo e feletseng ea ho amohela hoo e ka bang 90°.
⊙Kaho: Li-polarizer li tla ka mefuta le meralo e mengata.Li-polarizer tsa lifilimi tse tšesaane ke lifilimi tse tšesaane tse tšoanang le li-filters tsa optical.Polarizing plate beamsplitters ke tse tšesaane, lipoleiti tse bataletseng li behiloe ka lehlakoreng ho ea lebaleng.Polarizing cube beamsplitters e na le liprism tse peli tse lehlakoreng le letona tse hokahaneng hammoho hypotenuse.
Birefringent polarizers e na le liprism tse peli tsa kristale tse kopantsoeng hammoho, moo angle ea li-prism e khethoang ke moralo o ikhethileng oa polarizer.
⊙Sebaka se hlakileng sa aperture: Hangata lesoba le hlakileng ke lona le thibelang li-polarizer tsa birefringent kaha ho fumaneha ha likristale tse hloekileng ho fokotsa boholo ba li-polarizer tsena.Li-polarizer tsa Dichroic li na le li-apertures tse hlakileng ka ho fetisisa tse fumanehang kaha masela a tsona a itšetlehile ka boholo bo boholo.
⊙Bolelele ba tsela ea Optical: Leseli le bolelele le tlameha ho tsamaea ka polarizer.E bohlokoa bakeng sa ho hasana, menyako ea tšenyo, le litšitiso tsa sebaka, bolelele ba tsela ea mahlo bo ka ba bohlokoa ho li-polarizers tse peli empa hangata li khuts'oane ho li-dichroic polarizers.
⊙Senyako sa tšenyo: Moeli oa tšenyo ea laser o khethoa ke thepa e sebelisoang hammoho le moralo oa polarizer, 'me li-polarizer tsa birefringent hangata li na le moeli o phahameng ka ho fetisisa oa tšenyo.Hangata samente ke eona ntho e kotsing ea ts'enyo ea laser, ke ka lebaka leo li-beamsplitters tse amanang le optically kapa air spaced birefringent polarizers li nang le menyako e phahameng ea tšenyo.
Tataiso ea Khetho ea Polarizer
Ho na le mefuta e 'maloa ea li-polarizers tse kenyelletsang dichroic, cube, grid grid le crystalline.Ha ho mofuta o le mong oa polarizer o loketseng ts'ebeliso e 'ngoe le e' ngoe, e 'ngoe le e' ngoe e na le matla le mefokolo ea eona e ikhethang.
Dichroic Polarizers e fetisetsa boemo bo itseng ba polarization ha e ntse e thibela tse ling kaofela.Mohaho o tloaelehileng o na le substrate e le 'ngoe e koahetsoeng kapa filimi ea polymer dichroic, e kentsoeng lipoleiti tse peli tsa khalase.Ha lebone la tlhaho le feta ka har'a thepa ea dichroic, karolo e 'ngoe ea orthogonal polarization ea leballo e kenngoa ka matla' me e 'ngoe e tsoa ka ho monya ho fokolang.Ka hona, dichroic sheet polarizer e ka sebelisoa ho fetolela balm e sa reroang hore e be maballo a polarized.Ha ho bapisoa le li-prism tsa polarizing, dichroic sheet polarizer e fana ka boholo bo boholo haholo le angle e amohelehang. Ha u ntse u tla bona ho timela ho phahameng ho ea ho litekanyetso tsa litšenyehelo, mohaho o fokotsa tšebeliso ea matla a matla a lasers kapa mocheso o phahameng.Li-polarizer tsa Dichroic li fumaneha ka mefuta e mengata e fapaneng, ho tloha filiming e theko e tlaase ea laminated ho ea ho polarizers e nepahetseng e phahameng ea phapang.
Dichroic polarizers e monya boemo bo sa batleheng ba polarization
Polarizing Cube Beamsplitters e entsoe ka ho kopanya liprism tse peli tse ka letsohong le letona le hypotenuse e koahetsoeng.Ho roala ha polarizing hangata ho hahiloe ka likarolo tse fapanyetsanoang tsa lisebelisoa tse phahameng le tse tlaase tse bontšang khanya ea S polarized le ho fetisa P. Sephetho ke maballo a mabeli a orthogonal ka mokhoa o bonolo ho hlongoa le ho lumellana.Liaparo tsa polarizing hangata li khona ho mamella matla a mangata, leha ho le joalo likhomaretsi tse sebelisetsoang ho tiisa li-cubes li ka hloleha.Mokhoa ona oa ho hloleha o ka felisoa ka ho ikopanya le optically.Leha re bona phapang e phahameng bakeng sa beam e fetisoang, phapang e bonts'ang hangata e tlase.
Li-polarizer tsa marang-rang li na le mehala e mengata e sa bonahaleng holim'a karoloana ea khalase e fetisang khanya ea P-Polarized le ho khantša leseli la S-Polarized.Ka lebaka la sebopeho sa mochini, li-polarizer tsa grid ea terata li na le leqhubu la wavelength le lekantsoeng feela ke phetisetso ea substrate e etsang hore e be tse loketseng lits'ebetso tsa Broadband tse hlokang polarization e phahameng.
Polarization perpendicular ho mehala ea tšepe e fetisoa
Crystalline polarizer e fetisetsa polarization e lakatsehang ebe e khelosa tse ling kaofela ka ho sebelisa thepa ea bona ea kristale.
Crystalline polarizers e sebelisa likarolo tse peli tsa karoloana ho fetola boemo ba polarization ea leseli le kenang.Lisebelisoa tsa Birefringent li na le li-indices tse fapaneng hanyane tsa refraction bakeng sa leseli le polarized ka mekhoa e fapaneng e etsang hore linaha tse fapaneng tsa polarization li tsamaee har'a thepa ka lebelo le fapaneng.
Li-polarizers tsa Wollaston ke mofuta oa li-polarizer tsa kristale tse nang le li-prism tse peli tse lehlakoreng le letona tse kopantsoeng hammoho, e le hore lilepe tsa tsona tsa mahlo li shebahale hantle.Ntle le moo, moeli o phahameng oa tšenyo ea li-crystalline polarizers o etsa hore e be tse loketseng lits'ebetso tsa laser.
Wollaston Polarizer
Li-polarizer tsa Paralight Optics li kenyelletsa Polarizing Cube Beamsplitters, High Performance Two Channel PBS, High Power Polarizing Cube Beamsplitters, 56 ° Polarizing Plate Beamsplitters, 45 ° Polarizing Plate Beamsplitters, Dichroic Sheet Polarizers, Polaringizers Bilizer, Nanoparticles Taylor Polarizers, Glan Laser Polarizers, Glan Thompson Polarizers, Wollaston Polarizers, Rochon Polarizers), Variable Circular Polarizers, le Polarizing Beam Displacers / Combiners.
Laser Line Polarizers
Bakeng sa tlhaiso-leseling e batsi mabapi le polarization optics kapa fumana quote, ka kopo ikopanye le rona.
