"I-polarization" iyisici esivamile sama-lasers ahlukahlukene, okunqunywa isimiso sokwakheka kwe-laser. Iugongolo laserikhiqizwa imisebe evuselelwe yezinhlayiya eziphakathi nendawo ezikhipha ukukhanya ngaphakathilaser. Imisebe evuselelwe inesici esiphawulekayo: lapho i-photon yangaphandle ishaya inhlayiyana esesimweni samandla aphezulu, izinhlayiyana zikhipha i-photon bese ishintshela esimweni esiphansi samandla. Ama-photon akhiqizwa kule nqubo anesigaba esifanayo, isiqondiso sokusabalalisa kanye nesimo se-polarization njengama-photons angaphandle. Uma ukusakaza kwe-photon kwakhiwa nge-laser, wonke ama-photon akumodi ye-photon stream abelana ngesigaba esifanayo, isiqondiso sokusabalalisa, nesimo se-polarization. Ngakho-ke, imodi ye-laser longitudinal (imvamisa) kufanele yenziwe i-polarized.
Akuwona wonke ama-laser ane-polarized. Isimo se-polarization se-laser sithonywa yizinto eziningi, ezihlanganisa:
1. Ukubonakaliswa kwe-resonator: Ukuze kuqinisekiswe ukuthi ama-photon engeziwe atholakala endaweni ukuze akhe ama-oscillations azinzile emgodini futhi akhiqize.ukukhanya kwe-laser, ubuso bokugcina be-resonator ngokuvamile bumbozwa ngefilimu ekhanyayo ethuthukisiwe. Ngokomthetho weFresnel, isenzo sefilimu ekhanyayo enezingqimba eziningi sibangela ukuthi ukukhanya okubonisiwe kokugcina kushintshe kusuka ekukhanyeni kwemvelo kuye komugqa.ukukhanya kwe-polarized.
2. Izici ze- gain medium: ukukhiqizwa kwelaser kusekelwe emisebeni evuselelwe. Uma ama-athomu ajabulile akhipha ama-photon ngaphansi kwenjabulo yama-photon angaphandle, lawa ma-photons adlidliza aye ohlangothini olufanayo (isimo se-polarization) njengama-photon angaphandle, okuvumela i-laser ukuthi igcine isimo esizinzile nesihlukile sokwehlukanisa. Ngisho nezinguquko ezincane esimweni se-polarization zizohlungwa yi-resonator ngoba ama-oscillations azinzile angeke akhiwe.
Enqubweni yangempela yokukhiqiza i-laser, i-wave plate kanye nekristalu ye-polarization kuvame ukungezwa ngaphakathi kwe-laser ukuze kulungiswe isimo sokuzinza se-resonator, ukuze isimo se-polarization emgodini sihluke. Lokhu akwenzi nje amandla e-laser agxile kakhulu, ukusebenza kahle kwe-excitation kuphezulu, kodwa futhi kugwema ukulahlekelwa okubangelwa ukungakwazi ukuzulazula. Ngakho-ke, isimo se-polarization ye-laser sincike ezintweni eziningi ezifana nesakhiwo se-resonator, imvelo ye-resonator yokuzuza kanye nezimo ze-oscillation, futhi ayihlali iyingqayizivele.
Isikhathi sokuthumela: Jun-17-2024