Txij li lub xyoo pua 20, laser yog lwm qhov kev tsim tawm tshiab ntawm noob neej tom qab nuclear zog, khoos phis tawm thiab semiconductor. Nws raug hu ua" riam riam ceev" ;," tus pas ntsuas&tseeb; thiab" qaim teeb" ;. Atomic stimulated tawg ntawm lub teeb, thiaj li hu ua" laser" ;:
thaum cov khoom siv hluav taws xob hauv qhov nruab nrab nqus hluav taws xob, lawv dhia los ntawm theem qis zog mus txog qib siab zog, thiab tom qab ntawd poob qis los ntawm lub zog hluav taws xob mus rau theem qis zog, lub zog tawm hauv cov duab photons. Ib hom ntawm
lub photon nqaj (laser) uas muaj kev nyiam (zoo siab heev), hauv cov duab ntawm photon kho qhov muag yog ua tau zoo ib yam. Qhov no ua rau lub laser tau zoo dua monochromatic, siab dua qhov ci ci thiab qhov kev qhia tau zoo dua li qhov teeb pom kev zoo tib yam. Ib hom ntawm
laser yeeb nkab txiav tshuab yog dav siv, suav nrog laser npav, laser vuam, laser txiav, kev sib txuas lus fiber ntau, laser sib npaug, laser radar, laser riam phom, cov ntaub ntawv laser, laser kho qhov muag, laser kev zoo nkauj, laser scanning, laser tua tus tua, LIF tsis muaj kev cuam tshuam kuaj siv tshuab thiab lwm yam.
(1) laser tube txiav kev ua haujlwm tuaj yeem ua tau raws li qhov yuav tsum tau ua: nws tuaj yeem txhim kho khoom zoo lossis tsim khoom tshiab, thiab txhim kho kev sib tw ntawm cov lag luam;
(2) txhim khu kev qha: nws tuaj yeem ua haujlwm hauv chaw tsim khoom lag luam thiab ua haujlwm tsis tu ncua 24 teev, uas tuaj yeem ua haujlwm los ntawm cov neeg ua haujlwm txawj ntse;
(3) kev nyab xeeb: kev nyab xeeb ntawm cov cuab yeej zoo, thiab yuav tsis muaj kev raug mob rau tus kheej lossis lwm yam xwm txheej ua rau poob kev lag luam hauv kev siv;
(4) luv peev rov ua haujlwm rov qab: nws yuav tsum muaj cov cuab yeej ua haujlwm tau zoo, tus nqi tsim nyog, kev siv hluav taws xob tsawg thiab cov chaw pem teb me me, kom cov lag luam tuaj yeem tau txais txiaj ntsig kev lag luam ntau dua nrog kev nqis peev tsawg thiab txo nqi haujlwm. Ib hom ntawm
laser tube txiav tshuab txhais tau hais tias kev ua kom nrov zog los ntawm kev ua kom lub zog tawm. Cov npe Askiv tag nrho ntawm laser tau qhia tag nrho cov txheej txheem tseem ceeb ntawm kev tsim tawm laser. Xyoo 1964, raws li kev tawm tswv yim ntawm Qian Xuesen, tus kws tshawb fawb nto moo hauv Suav teb, lub npe" ua kom muaj zog emission" raug hloov mus rau" laser" ;. Ib hom ntawm
Laser lub raj txiav tshuab yog ib qho tseem ceeb hauv kev tsim ntawm noob neej txij li xyoo pua 20th, tom qab atomic zog, khoos phis tawm thiab semiconductor. Nws yog hu ua" riam riam ceev" ;," tus pas ntsuas&tseeb;" ci ci ci" thiab" coj txawv txawv laser" ;. Nws' s 10 txhiab zaus zog dua li hnub ci. Lub hauv paus ntsiab lus ntawm laser tube txiav tshuab tau tshawb pom los ntawm tus kws tshaj lij tshaj lij Einstein xyoo 1916, tab sis nws tsis yog txog 1958 tias lub laser ua ntej ua tiav kev lag luam. Laser tuaj mus ua nyob rau hauv qab keeb kwm ntawm kev npaj tswv yim thiab kev xav tau ceev nrooj ntawm kev coj ua. Thaum nws tawm los, nws tau ua tiav txoj kev loj hlob tshwj xeeb. Txoj kev loj hlob ntawm laser tsis tsuas yog ua rau lub Optical Science txheej thaum ub thiab thev naus laus zis tau lub neej tshiab, tab sis kuj tseem ua rau kev tshwm sim ntawm tag nrho kev lag luam tshiab. Laser tuaj yeem ua rau tib neeg siv cov txheej txheem tshaj lij thiab txhais tau tias kom tau txais txiaj ntsig tsis tau dhau los thiab ua tiav, yog li txhawb kev tsim khoom ntawm cov neeg ua haujlwm.
