Polarization na Laser

Polarization na Laser

"Polarization" wani nau'i ne na yau da kullum na nau'in laser daban-daban, wanda aka ƙaddara ta hanyar ka'idar samuwar laser. TheLaser katakoAna samar da shi ta hanyar ƙwaƙƙwaran radiyo na tsaka-tsaki masu fitar da haske a cikinLaser. Radiyoyin da aka zuga suna da sifa mai ban mamaki: lokacin da photon na waje ya buga wani barbashi a cikin yanayin makamashi mafi girma, barbashin yana haskaka photon kuma yana canzawa zuwa ƙananan makamashi. Hoton da aka samar a cikin wannan tsari suna da lokaci iri ɗaya, alkiblar yaduwa da yanayin polarization kamar na waje. Lokacin da aka samar da rafi na photon a cikin na'urar laser, duk photons a cikin yanayin rafi na photon suna raba lokaci iri ɗaya, jagorar yadawa, da yanayin polarization. Don haka, dole ne a daidaita yanayin tsayin daka na Laser (mita).

Ba duk lasers ne polarized. Yanayin polarization na Laser yana shafar abubuwa da yawa, ciki har da:
1. Tunani na resonator: Domin tabbatar da cewa ƙarin photons suna gida don samar da barga oscillations a cikin rami da kuma haifar da.hasken laser, Ƙarshen fuskar mai resonator yawanci an yi shi tare da ingantaccen fim mai nunawa. Bisa ga dokar Fresnel, aikin fim ɗin multilayer yana haifar da haske na ƙarshe ya canza daga hasken halitta zuwa layi.polarized haske.
2. Halayen matsakaicin riba: ƙirar laser ta dogara ne akan radiation mai motsa jiki. Lokacin da zarra masu zumudi ke haskaka photons a ƙarƙashin zumudin hotunan na waje, waɗannan photons suna rawar jiki guda ɗaya (jihar polarization) kamar yadda na waje ke ba da damar laser don kula da yanayin polarization na musamman. Ko da ƙananan canje-canje a cikin yanayin polarization za a tace su ta hanyar resonator saboda ba za a iya samar da tsayayyen oscillations ba.

A cikin ainihin aikin masana'anta na Laser, farantin igiyar ruwa da kristal polarization yawanci ana ƙara su a cikin Laser don gyara yanayin kwanciyar hankali na resonator, ta yadda yanayin polarization a cikin rami ya zama na musamman. Wannan ba wai kawai ya sa makamashin Laser ya fi mayar da hankali ba, haɓakar haɓakawa ya fi girma, amma kuma yana guje wa asarar da ta haifar da rashin iya yin oscillate. Saboda haka, yanayin polarization na Laser ya dogara da dalilai masu yawa kamar tsarin resonator, yanayin matsakaicin riba da yanayin oscillation, kuma ba koyaushe ba ne na musamman.