Makhalidwe ofunikira a laser gain medium

Kodi zizindikiro zazikulu za laser gain media ndi ziti?

Laser gain medium, yomwe imadziwikanso kuti laser working substance, imatanthauza dongosolo la zinthu zomwe zimagwiritsidwa ntchito kuti tinthu timene timene timakhala tinthu ...kuwala kwa laserChopangira kuwala kwa laser chingakhale cholimba, chamadzimadzi, cha gasi kapena cha semiconductor.
Mu ma laser olimba, ma gain media omwe amagwiritsidwa ntchito kwambiri ndi ma crystals omwe ali ndi ma ions a rare earth kapena ma transition metal ions, monga ma crystals a Nd:YAG, ma Nd:YVO4 crystals, ndi zina zotero. Mu ma laser amadzimadzi, utoto wa organic nthawi zambiri umagwiritsidwa ntchito ngati gain media. Ma laser a gas amagwiritsa ntchito gas ngati gain medium, monga carbon dioxide gas mu carbon dioxide lasers, ndi helium ndi neon gas mu helium-neon lasers.Ma laser a semiconductorGwiritsani ntchito zipangizo za semiconductor ngati njira yopezera phindu, monga gallium arsenide (GaAs).
Makhalidwe akuluakulu a laser gain medium ndi awa:
Kapangidwe ka mphamvu: Maatomu kapena mamolekyu omwe ali mu gain medium amafunika kukhala ndi kapangidwe koyenera ka mphamvu kuti akwaniritse kusintha kwa chiwerengero cha anthu pansi pa kusonkhezera mphamvu zakunja. Izi nthawi zambiri zikutanthauza kuti kusiyana kwa mphamvu pakati pa mphamvu zapamwamba ndi zochepa kuyenera kufanana ndi mphamvu ya photon ya wavelength inayake.

Kapangidwe ka kusintha: Maatomu kapena mamolekyu omwe ali mu mkhalidwe wosangalatsa amafunika kukhala ndi kapangidwe ka kusintha kokhazikika kuti atulutse ma photon ogwirizana panthawi ya radiation yosangalatsa. Izi zimafuna kuti njira yopezera phindu ikhale ndi mphamvu yayikulu ya quantum komanso kutayika kochepa.
Kukhazikika kwa kutentha ndi mphamvu ya makina: Mu ntchito yeniyeni, cholumikizira chowonjezera kutentha chimayenera kupirira kuwala kwa pampu yamphamvu kwambiri komanso kutulutsa kwa laser, kotero chimayenera kukhala ndi kukhazikika kwa kutentha ndi mphamvu ya makina.
Ubwino wa kuwala: Ubwino wa kuwala kwa cholumikizira kuwala ndi wofunikira kwambiri pakugwira ntchito kwa laser. Iyenera kukhala ndi kuwala kofalikira kwambiri komanso kutayika kochepa kwa kuwala kuti iwonetsetse kuti kuwala kwa laser kuli bwino komanso kokhazikika. Kusankha cholumikizira kuwala kwa laser kumadalira zofunikira pakugwiritsa ntchitolaser, kutalika kwa nthawi yogwira ntchito, mphamvu yotulutsa ndi zina. Mwa kukonza bwino zinthu ndi kapangidwe ka gain medium, magwiridwe antchito ndi magwiridwe antchito a laser zitha kuwongoleredwa kwambiri.