Laser: Lub teeb tsim los ntawm kev ua kom zoo siab rau cov khoom tshwj xeeb nrog lub zog muaj zog xws li lub teeb lossis hluav taws xob tawm. Thaum electrons nyob rau hauv atoms nqus lub zog thiab kev hloov ntawm lub zog qis mus rau qib siab zog, thiab tom qab ntawd poob rov qab los ntawm qib siab zog mus rau qib qis zog, lub zog tso tawm tau tso tawm hauv daim ntawv ntawm photons, uas ua rau muaj kev sib txuam, monochromatic, coherent directional. nqaj.
Nws muaj cov yam ntxwv ntawm zoo monochromaticity, siab brightness, zoo directionality thiab siab coherence.
Cov saw hlau muaj tiav, thiab daim ntawv thov nkag mus rau hauv txhua qhov chaw ntawm lub neej: laser ua, laser kho mob, laser kuaj pom, laser teeb pom kev zoo thiab lwm yam technologies dav txhawb tsheb, electronics, aviation, metallurgy thiab lwm yam lag luam.
Piv nrog rau kev ua ib txwm ua, laser ua tshuab muaj qhov zoo ntawm qhov siab precision, ceev ceev, tsis sib cuag, ntse thiab hloov tau.
Kev ua haujlwm kho qhov muag tau maj mam siv rau cov kev lag luam kev lag luam ib txwm muaj, txhim kho kev ua haujlwm zoo: technologies xws li laser npav, sib sib zog nqus engraving, txiav thiab vuam tau maj mam hloov cov tsoos inkjet luam ntawv, hlau pwm steel etching, thiab cov txheej txheem txiav tshuab.
Lub laser yog ib tug laser generating ntaus ntawv. Ib tug raug laser muaj plaub yam: ib tug kho qhov muag system, lub hwj chim mov system, ib tug tswj system thiab ib tug neeg kho tshuab qauv. Lub zog muab hluav taws xob, kev tswj hwm thiab cov qauv siv tshuab sib koom ua ke pab kho qhov muag kom pom lub teeb laser. Lub tshuab kho qhov muag yog qhov tseem ceeb tshaj plaws rau kev tsim laser, thiab muaj peb yam kev ua haujlwm: lub twj tso kua mis, cov khoom nce, thiab resonator. Mercury qhov chaw: siv los nqa cov khoom nyob rau hauv cov khoom nce los ntawm cov av hauv lub xeev lub zog mus rau qib siab zog lub xeev, muab lub teeb ci. Tau txais cov khoom: Amplifies lub teeb tom qab absorbing lub zog muab los ntawm lub twj tso kua mis qhov chaw. Kuj tseem hu ua cov khoom siv laser ua haujlwm, nws paub txog cov pej xeem inversion ua ke nrog lub twj tso kua mis, thiab tib lub sijhawm txiav txim siab lub wavelength, tso zis zog thiab daim ntawv thov teb ntawm lub laser uas tuaj yeem tsim lub teeb laser. Optical resonator: Lub voj ntawm lub twj tso kua mis lub teeb qhov chaw thiab qhov nce nruab nrab tswj cov khoom siv laser los ntawm kev xav tsis tu ncua ntawm ob daim iav.
