Umgomo osebenzayo oyisisekelo we-laser (ukukhuliswa okukhanyayo okuvuselelwa okuvuselelwa kwemisebe) kususelwa emcimbini wokukhuthaza ukukhanya. Ngochungechunge lwemiklamo eqondile nezakhiwo, ama-lasers akhiqiza imishayo ngokuhambisana nokuhambisana okuphezulu, i-monochromatity, nokukhanya. Ama-Lasers asetshenziswa kabanzi kubuchwepheshe besimanje, kufaka phakathi emikhakheni efana nokuxhumana, umuthi, ukukhiqiza, ukukalwa kanye nocwaningo lwesayensi. Ukusebenza kwazo okuphezulu kanye nezimpawu zokulawula okuqondile zibenze babe yingxenye ebalulekile yobuchwepheshe obuningi. Ngezansi kwencazelo eningilizayo yemigomo esebenzayo yama-lasers kanye nezinqubo zezinhlobo ezahlukene zama-lasers.
1. Ukuphuma okuvuselelayo
Ukuphuma okuvuselelayoIngabe umgomo oyisisekelo ngemuva kwesizukulwane se-laser, okokuqala okuhlongozwe ngu-Einstein ngo-1917. Le nto ichaza ukuthi izithombe ezibumbene kangakanani zikhiqizwa kanjani ngokuxhumana phakathi kokukhanya nokwazisa. Ukuze uqonde kangcono ukuphuma okuvuselelayo, ake siqale ngokuphuma okuzenzakalelayo:
Ukuphuma okuzenzakalelayo: Ku-athomu, ama-molecule, noma ezinye izinhlayiya ezincane, ama-elektroni angakwazi ukudonsa amandla angaphandle (njengamandla kagesi noma aphezulu) kanye noguquko kumandla aphezulu wamandla, ezaziwa ngokuthi yi-Exprepho Yezinga. Kodwa-ke, ama-elektroni ajabule - awenziwe ngohulumeni awazinzile futhi ekugcineni azobuyela ezingeni eliphansi lamandla, elaziwa ngokuthi yi-Ground State, ngemuva kwesikhashana esifushane. Ngale nqubo, i-elektroni ikhipha i-Photon, okuyi-Emission ephumelelayo. Ama-Photon anjalo angehleliwe ngokwemvamisa yemvamisa, isigaba, nesiqondisi, futhi ngenxa yalokho awanakho ukuhlangana.
Ukuphuma okuvuselelayo: Isihluthulelo sokukhuthaza ukuphuma kungukuthi lapho i-electron ethokozisayo ehlangana ne-Photon ngamandla ahambisana namandla aso, i-Photon ingashukumisela i-elektroni ukuthi ibuyele e-Photon entsha ngenkathi ikhipha i-Photon entsha. I-Photon entsha iyafana neyokuqala ngokwemvamisa, isigaba, kanye nokuqondisa okusakazwayo, okuphumela ekukhanyiseni okubumbene. Lesi simo siyakhulisa kakhulu isibalo namandla e-photons futhi yindlela ebaluleke kakhulu yama-lasers.
Umphumela omuhle wempendulo yokuphuma okuvuselelayo: Ekwakhiweni kwama-lasers, inqubo yokuphuma evuselelwayo iphindwa kaninginingi, futhi lo mphumela wokuphendula okuhle ungakhuphula inani le-Photons. Ngosizo lomgodi osusayo, ukuhambisana kwezithombe kugcinwa, futhi ubukhulu balo ugongolo lukhula ngokuqhubekayo.
2. Thola okuphakathi
Le khasithola okuphakathiIngabe impahla eyisisekelo e-laser enquma ukukhuliswa kwezithombe kanye nokukhishwa kwe-laser. Kungumzimba wokukhuthaza ukuphuma okuvuselelwa, futhi izakhiwo zalo kunquma imvamisa, wavelength, namandla okukhishwa kwe-laser. Uhlobo nezimpawu ze-Gain Medium zithinta ngqo uhlelo lokusebenza kanye nokwenza kwe-laser.
Indlela yokubonisana: Ama-elektroni ku-inzuzo aphakathi kudingeka ajabule ngezinga lamandla aphezulu ngomthombo wamandla wangaphandle. Le nqubo ivame ukutholakala ngezinhlelo zokuhlinzekwa kwamandla kwangaphandle. Izindlela ezijwayelekile zokuxoxa zifaka:
Ukupompa kagesi: Kuthokozisa ama-elektroni aphakathi nendawo ngokufaka isicelo sikagesi.
Ukupompa Optical: Okuthokozisayo okuphakathi nomthombo wokukhanya (okufana nesibani se-flash noma enye i-laser).
Uhlelo lwamazinga Energy: Ama-elektroni ku-inzuzo okuphakathi asatshalaliswa ngamazinga athile wamandla. Okuvame kakhuluIzinhlelo ezi-2na-Izinhlelo ezine-level. Ohlelweni olulula lwezinga ezimbili, ukuguqulwa kwama-elektroni kusuka esizweni somhlaba kuya esimweni esijabulisayo bese ubuyela esimweni somhlabathi ngokusebenzisa ukuphuma okuvuselelayo. Ohlelweni lwezinga ezine, ama-elektroni aguqulwa amazinga ajwayelekile phakathi kwamazinga ahlukene wamandla, okuvame ukubamba ekusebenzeni kahle.
Izinhlobo ze-Get Media:
Igesi ukuthola okuphakathi: Isibonelo, ama-helium-neon (He-NE) ama-lasers. Imidiya ye-Ges Layiza yaziwa ngokukhipha kwabo okuzinzile kanye ne-wavelth ebekiwe, futhi isetshenziswa kabanzi njengemithombo evamile yokukhanya ezindaweni zokuhlanza.
I-Liquid Get Medium: Isibonelo, udayi wedayi. Ama-molecule adayi anezakhiwo ezinhle zokuthokozisa kuwo wonke ama-wavelength ahlukene, azenze zilungele ama-lasers amathuba.
I-solid inzuzo ephakathi: Isibonelo, i-ND (i-neodymium-doped yttrium aluminium garonet) ama-lasers. Lawa ama-lasers asebenza kahle futhi anamandla amakhulu, futhi asetshenziswa kabanzi ekusikeni kwezimboni, ukufudumeza kanye nezicelo zezokwelapha.
Semiconductor ukuthola okuphakathi: Isibonelo, izinto zokwakha ze-gallium Arsenide (GAAS) zisetshenziswa kabanzi kumadivayisi wezokuxhumana kanye namadivayisi we-optoelectronic afana ne-laser diodes.
3. I-resonator cavity
Le khasiUmgodi we-resonatorIngxenye yesakhiwo e-laser esetshenziselwa impendulo kanye nokukhuliswa. Umsebenzi wayo oyisisekelo ukuthuthukisa inani le-photons elikhiqizwe ngokukhuthaza ukuphuma okuvuselelayo ngokukhombisa nokukhulisa kubo ngaphakathi komgodi, ngaleyo ndlela kukhiqize okuphumayo kwe-laser.
Ukwakheka komgodi we-resonator: Ngokuvamile kuqukethe izibuko ezimbili ezifanayo. Esinye isibuko esibonisa ngokuphelele, esaziwa ngokuthiisibuko esingemuva, kanti enye iyisibuko esibonisa ngokwengxenye, eyaziwa ngokuthiIsibuko sokukhipha. Ama-Photon akhombisa emuva naphambili ngaphakathi komgodi futhi akhuliswe ngokuxhumana ne-inzuzo ephakathi.
Isimo se-Resonance: Ukuqanjwa komgodi womthakathi kufanele kuhlangabezane nemibandela ethile, njengokuqinisekisa ukuthi izithombe zikha amagagasi emigodini. Lokhu kudinga ubude be-cavity ukuze babe yi-waver wavength eningi. Amagagasi akhanyayo kuphela ahlangabezana nalezi zimo angakhuliswa ngempumelelo ngaphakathi komgodi.
Ugongolo lokuphuma: Isibuko esibonisa ngokwengxenye sivumela ingxenye yogongolo lokukhanya okukhulisiwe ukuze lidlule, lakha i-laser's autput beam. Lo mfunga unesici esiphakeme, ukuhambisana, ne-monochromatity.
Uma ufuna ukufunda kabanzi noma unentshisekelo kuma-lasers, sicela ukhululeke ukuxhumana nathi:
Lusispot
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Isikhathi Sokuposa: Sep-18-2024