I- "Polarization" isici esivamile sama-lasers ahlukahlukene, anqunywe yimigomo yokwakheka ye-laser. Le khasiI-Laser Beamkukhiqizwa ngemisebe evuselelwayo yezinhlayiya eziphakathi nendawo okulula ngaphakathi kwei-laser. Imisebe evuselelayo evuselelwa inesimo esimangalisayo: Lapho i-Photon yangaphandle ishaya inhlayiya endaweni ephakeme yezwe, izinhlayiyana zikhanye I-Photon ekhiqizwa kule nqubo inesigaba esifanayo, isiqondisi sokuqondisa kanye nesimo se-polarization njengezithombe zakwamanye amazwe. Lapho kusungulwa i-Photon Stream e-laser, zonke izithombe ku-Mode Photon Stream share isigaba esifanayo, ukuqondisa okusakazwayo, nombuso we-polarization. Ngakho-ke, imodi ye-Laser Longitudinal (imvamisa) kumele ibe khona.
Akuwona wonke ama-lasers anamabala. Isimo se-Polarization se-laser sithintwa yizici eziningi, kufaka phakathi:
1. Ukuboniswa komthengisi: Ukuze uqinisekise ukuthi izithombe eziningi zenziwe zakha ama-oscillations azinzile emgodini futhi akhiqizeukukhanya kwe-laser, Ubuso bokuphela be-resonator buvame ukufakwa ngefilimu ekhanyayo ethuthukisiwe. Ngokusho komthetho kaFresnel, isenzo sefilimu ekhombisa ama-multilayer sibangela ukukhanya okuboniswe kokugcina ukuba kuguqulwe ekukhanyeni kwemvelo kulayiniukukhanya kwelanga.
2. Izici ze-Gain Medium: Isizukulwane se-laser sisuselwa kwimisebe evuselelayo. Lapho ama-athomu ajabule aqhakaza ama-photons ngaphansi kwe-expation of izithombe zakwamanye amazwe, lezi zithombe ezidlidliza endaweni efanayo (isimo se-polarization) njengezithombe zakwamanye amazwe, zivumela i-laser ukuthi ilondoloze isimo se-polarization esizinzile futhi esiyingqayizivele. Ngisho nezinguquko ezincane esesimweni se-polarization zizohlungwa ngumthengisi ngoba ama-oscillations azinzile awakwazi ukwakhiwa.
Enqubweni yokwenziwa kwe-laser yangempela, ipuleti le-wave kanye ne-crystal ye-polarization kuvame ukungezwa ngaphakathi kwe-laser ukulungisa isimo sokuqina somthengisi, ukuze isimo se-polarization sise-cavity sihlukile. Lokhu akwenzeki kuphela amandla ama-laser agxile kakhulu, ukusebenza kahle kokuthokozisa kuphakeme, kepha futhi kugwema ukulahleka okubangelwa ukungakwazi kwe-Oscillate. Ngakho-ke, isimo se-polarization se-laser sincike ezicini eziningi ezifana nesakhiwo somhleli we-resonator, uhlobo lwezimo eziphakathi nendawo kanye nezimo ze-oscillation, futhi azifani njalo.
Isikhathi sePosi: Jun-17-2024