Solid-State Lasers yog dab tsi?

Solid-State Lasersyog lub laser uas nws lub teeb-emitting nruab nrab yog cov khoom siv, feem ntau yog siv lead ua lossis iav, doped nrog lub ntiaj teb tsis tshua muaj lossis hloov pauv hlau ions, tsis yog kua lossis roj.

Solid-state lasers emit laser teeb hla ntau yam ntawm wavelengths, los ntawm ultraviolet (UV) mus rau infrared (IR), nyob ntawm seb qhov kev xaiv ntawm dopant thiab muaj pes tsawg leeg ntawm cov siv lead ua los yog iav. Cov zis hluav taws xob tuaj yeem nyob ntawm milliwatts (mW) mus rau ntau lub watts (W), lossis siab dua, nyob ntawm qhov tshwj xeeb laser tsim, nce nruab nrab, thiab siv cov tshuab siv.

Solid-state lasers feem ntau yog tsim los ntawm ob qhov chaw: cov khoom siv hauv tsev thiab cov khoom siv ions doped hauv cov khoom siv. Cov ions nquag yuav tsum muaj cov khoom tshwj xeeb, xws li cov kab fluorescence ntse, cov hlua haum dav, thiab kev ua haujlwm siab quantum ntawm qhov xav tau wavelength. Ntawm qhov tod tes, cov khoom siv tswv tsev yuav tsum muaj cov khoom xws li lub zog, tawg tsis kam, siab thermal conductivity, thiab kho qhov muag zoo.

Tom qab doping nrog tsawg lub ntiaj teb ions, ob lub iav thiab crystalline cov ntaub ntawv nthuav tawm cov khoom xav tau. Cov ntaub ntawv tsim nyog muaj xws li iav silicate, phosphate iav, thiab ntau yam khoom siv crystalline xws li garnet, aluminate, hlau oxide, fluoride, molybdate, tungstate, thiab lwm yam. Feem ntau siv cov ions muaj xws li lub ntiaj teb tsis tshua muaj ions xws li neodymium, erbium, thiab holmium, thiab. Raws li kev hloov pauv hlau xws li chromium, titanium, thiab nickel.

Qee cov lasers muaj npe nrov muaj xws li ruby ​​lasers, Nd:YAG lasers, Nd: iav lasers, Nd:Cr:GSGG lasers, Er: iav lasers, alexandrite lasers, thiab titanium: sapphire lasers.

Solid-state lasers tuaj yeem ua haujlwm nyob rau hauv ob qho tib si nruam nthwv dej (CW) hom, uas ua rau cov khoom siv hluav taws xob txuas ntxiv, lossis hom mem tes, uas ua rau luv luv pulses ntawm high-power laser teeb.

Kev tsim kho ntawm solid-state lasers

Txhawm rau ua kom lub xeev muaj zog laser, lub pas nrig laser yuav tsum tau muab ntsia ze ntawm lub teeb arc lossis teeb nyem. Lub teeb lub raj yog txuas nrog lub hwj chim. Lub laser pas nrig thiab lub teeb raj yog teem nyob rau hauv parallel, surrounded los ntawm ib tug reflector. Nyob rau ntawm ob qhov kawg ntawm lub laser kab noj hniav, ib tug siab reflective daim iav thiab ib tug tso zis coupler muab tso rau. Txhawm rau tshem tawm cov cua sov ntau dhau, lub laser yog txias siv lub tshuab hluav taws xob, feem ntau yog siv dej txias los yog glycol sib tov.

Solid-state laser zog daim duab
Lub active nruab nrab siv los ntawm solid-state lasers yog cov khoom siv. Feem ntau, tag nrho cov khoom siv hauv lub xeev yog optically pumped, uas yog, lub teeb ci yog siv los ua lub zog thiab siv rau qhov nce nruab nrab. Tom qab nqus lub twj tso kua mis lub zog, cov electrons hauv qhov nruab nrab qhov nce tau zoo siab mus rau qib siab zog. Nyob rau hauv lub xeev zoo siab, ib co electrons yuav dhia los ntawm ib tug siab zog theem mus rau ib tug tshwj xeeb hloov mus rau lub zog.

Piv nrog rau lwm lub xeev zoo siab, lub neej ntawm lub xeev hloov pauv tau ntev dua, yog li nws tuaj yeem khaws thiab khaws lub zog. Thaum cov hluav taws xob hauv lub xeev hloov pauv rov qab mus rau hauv av, ib qho photon uas muaj lub zog tshwj xeeb thiab lub wavelength raug tso tawm. Cov txheej txheem no yog hu ua stimulated emissions thiab tsim cov teeb ci sib txuas.

Cov photons generated yog reflected ntau zaus ntawm daim iav los yog lwm yam reflective ntsiab nyob rau hauv lub laser kab noj hniav. Qhov kev tawm tswv yim no ua kom lub zog txhawb nqa emissions thiab ua rau lub teeb laser khaus. Lub amplified ib nrab beam khiav tawm los ntawm ib feem ntawm cov reflectors los tsim cov zis laser.

Cov kab hluav taws xob tso zis feem ntau muaj qhov nqaim nqaim, uas yog tus cwj pwm los ntawm qhov tshwj xeeb wavelength ntsig txog lub zog sib txawv ntawm lub xeev hloov mus rau hauv av.

Qhov zoo ntawm solid-state lasers:
1. Solid-state lasers feem ntau tsis muaj cov khoom poob piv rau cov roj lasers vim hais tias cov laser nruab nrab yog nyob rau hauv ib tug khoom lub xeev. Qhov nruab nrab active nyob rau hauv ib tug solid-state laser, xws li ib tug siv lead ua los yog iav, tuav nws muaj pes tsawg leeg thiab tsis haus los yog deplete thaum lub sij hawm ua hauj lwm.
3. Solid-state lasers tuaj yeem tsim tau ob qho tib si txuas ntxiv thiab cov zis tawm.
4. Lawv txoj kev tsim kho yog qhov yooj yim.
Disadvantages ntawm solid-state lasers:
1. Solid-state lasers tsis tshua muaj txiaj ntsig hauv kev hloov cov tswv yim zog rau hauv cov zis laser.
2. Lub divergence ntawm lub laser beam tsis tas li thiab tuaj yeem sib txawv ntawm 1 milliradian thiab 20 milliradian.
3. Lub zog poob yuav tshwm sim thaum lub pas nrig laser overheated.

Kev siv ntawm solid-state lasers:
Solid-state lasers muaj ntau yam kev siv hauv ntau qhov chaw. Ntxiv nrog rau spectroscopy thiab kev sib txuas lus, kev siv cov khoom siv lub xeev lasers suav nrog
Cov khoom siv ua haujlwm: Cov khoom siv lub xeev lasers tau dav siv rau kev txiav, drilling, vuam, thiab kos ntau yam ntaub ntawv xws li hlau, yas, ceramics, thiab cov khoom sib xyaw. Lawv ua tau zoo heev thiab tuaj yeem ua haujlwm ob qho tib si macro thiab micro ua haujlwm.
Kev Kho Mob thiab Biomedical: Cov lasers no yog siv rau hauv cov txheej txheem kho mob xws li kev phais laser, dermatology (xws li tattoo tshem tawm), ophthalmology (xws li kho qhov muag), kho hniav, thiab tshuaj pleev ib ce. Lawv tuaj yeem ua tiav lub hom phiaj thiab ablate cov ntaub so ntswg nrog kev puas tsuaj tsawg rau cov cheeb tsam ib puag ncig.
Kev Tshawb Fawb Txog Kev Tshawb Fawb: Cov cuab yeej tseem ceeb rau kev tshawb fawb txog kev tshawb fawb, suav nrog spectroscopy, fluorescence imaging, particle acceleration, thiab kev kawm ntawm ultrafast phenomena. Lawv muaj peev xwm muab cov khoom siv hluav taws xob tswj tau zoo rau kev kawm cov ntaub ntawv thiab cov txheej txheem ntawm lub cev thiab tshuaj lom neeg.
Kev Tiv Thaiv thiab Kev Ruaj Ntseg: Cov lasers no tau siv rau hauv kev tiv thaiv thiab kev ruaj ntseg daim ntawv thov, suav nrog cov neeg tsim lub hom phiaj laser, nrhiav ntau yam, qhia lub zog riam phom, thiab laser countermeasures. Lawv muab cov teeb pom kev zoo meej thiab muaj zog rau kev siv tub rog, aerospace, thiab kev nyab xeeb siv.
Kev sib txuas lus: Lub xeev cov lasers ua lub luag haujlwm tseem ceeb hauv fiber-optic kev sib txuas lus, ua raws li cov khoom siv kho qhov muag thiab cov teeb pom kev zoo kom xa cov teeb liab hla qhov ntev ntawm cov ntaub ntawv siab.

Cov ntaub ntawv tiv tauj:

Yog tias koj muaj lus nug, thov hu rau peb. Txawm peb cov neeg muas zaub nyob qhov twg thiab peb cov kev xav tau yog dab tsi, peb yuav ua raws li peb lub hom phiaj los muab peb cov neeg siv khoom zoo, tus nqi qis, thiab kev pabcuam zoo tshaj plaws.