"Polarization" ke tšobotsi e tloaelehileng ea li-laser tse fapaneng, e khetholloang ke molao-motheo oa ho thehoa ha laser.lehlaseli la lasere hlahisoa ke mahlaseli a hlasimolohileng a likaroloana tse ntšang leseli tse ka hare holaserMahlaseli a susumelitsoeng a na le tšobotsi e ikhethang: ha photon ea kantle e otla karoloana boemong bo phahameng ba matla, karoloana e ntša photon ebe e fetela boemong bo tlase ba matla. Li-photon tse hlahisoang ts'ebetsong ena li na le mohato o tšoanang, tataiso ea ho ata le boemo ba polarization joalo ka li-photon tsa kantle. Ha molapo oa photon o thehoa ka har'a laser, li-photon tsohle tse molapong oa photon li arolelana mohato o tšoanang, tataiso ea ho ata le boemo ba polarization. Ka hona, mokhoa oa longitudinal oa laser (maqhubu) o tlameha ho ba polarized.
Hase li-laser tsohle tse nang le polarized. Boemo ba polarization ba laser bo angoa ke lintlha tse 'maloa, ho kenyeletsoa:
1. Ponahalo ea resonator: E le ho netefatsa hore li-photon tse ngata li fumaneha sebakeng seo ho theha ho sisinyeha ho tsitsitseng ka har'a cavity le ho hlahisaleseli la laser, karolo e ka morao ea resonator hangata e manehiloe ka filimi e ntlafalitsoeng ea khanya. Ho ea ka molao oa Fresnel, ketso ea filimi e bonahatsang ea mekhahlelo e mengata e etsa hore leseli la ho qetela le bonahatsoang le fetohe ho tloha khanyeng ea tlhaho ho ea ho e otlolohileng.leseli le nang le polarized.
2. Litšobotsi tsa mokhoa oa ho fumana matla: tlhahiso ea laser e thehiloe mahlaseling a susumelitsoeng. Ha liathomo tse hlasimolohileng li ntša li-photon tlas'a ho tsosoa ha li-photon tsa kantle ho naha, li-photon tsena li thothomela ka lehlakoreng le le leng (boemo ba polarization) le li-photon tsa kantle ho naha, e leng se lumellang laser ho boloka boemo bo tsitsitseng le bo ikhethang ba polarization. Esita le liphetoho tse nyane boemong ba polarization li tla sefshoa ke resonator hobane ho sisinyeha ho tsitsitseng ho ke ke ha thehoa.
Mokgweng wa tlhahiso ya laser, poleiti ya maqhubu le kristale ya polarization hangata di eketswa ka hare ho laser ho lokisa boemo ba botsitso ba resonator, e le hore boemo ba polarization ka hara cavity bo ikgethe. Sena ha se etse feela hore matla a laser a be matla haholo, bokgoni ba ho hlasimolla bo be bo hodimo, empa hape se qoba tahlehelo e bakwang ke ho se kgone ho sisinyeha. Ka hona, boemo ba polarization ba laser bo itshetlehile ka mabaka a mangata a kang sebopeho sa resonator, mofuta wa gain medium le maemo a oscillation, mme ha se kamehla e leng ntho e ikgethang.
Nako ea poso: Phuptjane-17-2024