Bhalisela kwiMedia yethu yeNtlalo ukuze ufumane iPosi ngokukhawuleza
I-Lasers, ilitye lembombo lobuchwepheshe bale mihla, inomdla njengoko intsonkothile. Entliziyweni yabo kukho i-symphony yamacandelo asebenza ngaxeshanye ukuvelisa ukukhanya okuhambelanayo nokwandisiweyo. Le bhlog iphonononga ubucukubhede bala macandelo, ixhaswa yimithetho-siseko yenzululwazi kunye ne-equations, ukunika ukuqonda okunzulu kobuchwepheshe belaser.
Ukuqonda okuPhezulu kwiiNgxelo zeNkqubo yeLaser: Umbono woBugcisa kwiiNgcali
| Icandelo | Umsebenzi | Imizekelo |
| Fumana Phakathi | Indawo yokuzuza yimathiriyeli kwilaser esetyenziselwa ukukhulisa ukukhanya. Iququzelela ukukhulisa ukukhanya ngokusebenzisa inkqubo yokuguqulwa kwabemi kunye nokukhutshwa okukhuthazwayo. Ukukhethwa kwendlela yokuzuza imisela iimpawu zemitha yelaser. | I-Lasers ye-Solid-State: umz, Nd: YAG (Neodymium-doped Yttrium Aluminium Garnet), esetyenziswa kwizicelo zonyango kunye nezoshishino.IiLaser zegesi: umz., i-CO2 lasers, esetyenziselwa ukusika kunye ne-welding.IiLaser zeSemiconductor:umz., i-laser diodes, esetyenziswa kunxibelelwano lwefiber optics kunye nezikhombisi zelaser. |
| Umthombo wokumpompa | Umthombo wokupompa unika amandla kwindawo yokuzuza ukuphumeza inversion yabemi (umthombo wamandla wokuguqulwa kwabemi), okwenza ukusebenza kwe-laser. | Ukumpompa amehlo: Ukusetyenziswa kwemithombo yokukhanya emandla efana nezibane ukumpompa iilaser eziqinileyo.Ukumpompa ngoMbane: Ukonwabisa irhasi kwiilaser zegesi ngomsinga wombane.Ukumpompa kweSemiconductor: Ukusebenzisa i-laser diode ukumpompa i-slid-state laser medium. |
| Umngxunya we-Optical | I-Optical cavity, equka izibuko ezibini, ibonisa ukukhanya ukwandisa ubude bendlela yokukhanya kwindlela yokuzuza, ngaloo ndlela iphucula ukukhanya kokukhanya. Inika indlela yempendulo yokukhulisa i-laser, ukukhetha imbonakalo kunye neempawu zendawo yokukhanya. | I-Planar-Planar Cavity: Isetyenziswe kuphando lwebhubhoratri, isakhiwo esilula.Planar-Concave Cavity: Ixhaphake kwii-laser zoshishino, ibonelela ngemigangatho ephezulu. Ring Cavity: Isetyenziswa kuyilo oluthile lwe-lasers yeringi, njenge-lasers yerhasi yeringi. |
I-Gain Medium: I-Nexus ye-Quantum Mechanics kunye ne-Optical Engineering
I-Quantum Dynamics kwi-Gain Medium
Indlela yokuzuza kulapho inkqubo esisiseko yokwandiswa kokukhanya yenzeka, into emiliselwe ngokunzulu kubuxhakaxhaka be-quantum. Intsebenziswano phakathi kwemimandla yamandla kunye namasuntswana angaphakathi ilawulwa yimigaqo yokukhutshwa okuvuselelweyo kunye nokuguqulwa kwabemi. Ubudlelwane obubalulekileyo phakathi kokukhanya kokukhanya (I), ubukhulu bokuqala (I0), i-transition cross-section (σ21), kunye namanani amasuntswana kumanqanaba amabini amandla (N2 kunye ne-N1) ichazwa yi-equation I = I0e ^ (σ21(N2-N1)L). Ukuzuza uguqulo lwabantu, apho i-N2> N1, ibalulekile ekwandiseni kwaye ililitye lembombo lelaser physics[1].
Amanqanaba amathathu vs. Iinkqubo ezineNqanaba leSine
Kuyilo lwelaser olusebenzayo, iinkqubo ezinamanqanaba amathathu kunye namanqanaba amane zidla ngokusetyenziswa. Iinkqubo ezinamanqanaba amathathu, ngelixa zilula, zifuna amandla amaninzi ukuphumeza inversion yabemi njengoko inqanaba elisezantsi le-laser lilizwe eliphantsi. Iinkqubo ezinemigangatho emine, kwelinye icala, zibonelela ngendlela esebenzayo ngakumbi ekuguqukeni kwabantu ngenxa yokubola okukhawulezileyo okungeyomithanga ukusuka kwinqanaba eliphezulu lamandla, okubenza baxhaphake ngakumbi kwizicelo zelaser zanamhlanje[2].
Is Iglasi ye-Erbium-dopedindlela yokuzuza?
Ewe, iglasi ye-erbium-doped eneneni luhlobo lwendlela yokuzuza esetyenziswa kwiinkqubo zelaser. Kulo mxholo, "idoping" ibhekisa kwinkqubo yokongeza isixa esithile seerbium ion (Er³⁺) kwiglasi. I-Erbium yinto enqabileyo yomhlaba ethi, xa idityaniswe kwi-host host yeglasi, inokukhulisa ukukhanya ngokusebenzayo ngokukhutshwa okuvuselelweyo, inkqubo esisiseko ekusebenzeni kwelaser.
Iglasi ye-Erbium-doped iphawuleka ngakumbi ngokusetyenziswa kwayo kwifiber lasers kunye nefiber amplifiers, ngakumbi kwishishini lonxibelelwano. Ifaneleka kakuhle kwezi zicelo kuba ikhulisa ngokufanelekileyo ukukhanya kwi-wavelengths ejikeleze i-1550 nm, i-wavelength engundoqo yonxibelelwano lwefiber optical ngenxa yokulahleka kwayo okuphantsi kwimicu ye-silica esemgangathweni.
Ierbiumiiyoni zifunxa ukukhanya kwempompo (kaninzi ukusuka kwi-alaser diode) kwaye bonwabile kwiindawo eziphezulu zamandla. Xa zibuyela kwindawo esezantsi yamandla, zikhupha iiphoton kwi-lasing wavelength, zinegalelo kwinkqubo yelaser. Oku kwenza iglasi ye-erbium-doped isebenze kwaye isetyenziswe ngokubanzi ukufumana indawo kuyilo olwahlukeneyo lwelaser kunye noyilo lweamplifier.
iiBlog eziNxulumeneyo: Iindaba - i-Erbium-Doped Glass: iNzululwazi kunye nezicelo
IiNdlela zokuPompa: Amandla okuqhuba ngasemva kweeLaser
Iindlela ezahlukeneyo zokuPhumelela ukuguquguquka kwabemi
Ukhetho lomatshini wokumpompa lubalulekile kuyilo lwelaser, lunefuthe kuyo yonke into ukusuka ekusebenzeni kakuhle ukuya kubude obuphumayo. Ukumpompa kwamehlo, kusetyenziswa imithombo yokukhanya yangaphandle efana nezibane okanye ezinye iilaser, kuqhelekile kwi-slid-state kunye nedayi lasers. Iindlela zokukhupha umbane zidla ngokusetyenziswa kwiilaser zegesi, ngelixa ii-laser ze-semiconductor zihlala zisebenzisa inaliti ye-electron. Ukusebenza kakuhle kwezi ndlela zokumpompa, ngakumbi kwi-diode-pumped solid-state lasers, ibe yingqwalasela ebalulekileyo yophando lwakutsha nje, ibonelela ngobuchule obuphezulu kunye nokubumbana[3].
Iingqwalasela zobuGcisa ekuPhuluphelweni ngokuSebenzayo
Ukusebenza kakuhle kwenkqubo yokupompa yinto ebalulekileyo yoyilo lwelaser, echaphazela ukusebenza ngokubanzi kunye nokufaneleka kwesicelo. Kwii-laser zombuso oqinileyo, ukhetho phakathi kwezibane kunye ne-laser diode njengomthombo wempompo kunokuchaphazela kakhulu ukusebenza kwenkqubo, umthwalo we-thermal, kunye nomgangatho we-beam. Uphuhliso lwamandla aphezulu, olusebenza ngokufanelekileyo lwelaser diode luguqule iinkqubo zelaser zeDPSS, zenza ukuba uyilo olusulungekileyo nolusebenzayo[4].
I-Optical Cavity: Ubunjineli beLaser Beam
Uyilo lweCavity: Umthetho wokulinganisa weFiziksi kunye nobuNjineli
I-Optical cavity, okanye i-resonator, ayisiyonto nje i-passive component kodwa ithatha inxaxheba esebenzayo ekubunjweni kwe-laser beam. Uyilo lwecavity, kubandakanywa ukugoba kunye nokulungelelaniswa kwezibuko, kudlala indima ebalulekileyo ekunqumeni ukuzinza, ukwakheka kwemowudi kunye nesiphumo se-laser. Umgodlo kufuneka uyilelwe ukukhulisa inzuzo yokubona ngelixa unciphisa ilahleko, umngeni odibanisa ubunjineli be-optical kunye ne-wave optics.5.
Iimeko ze-Oscillation kunye noKhetho lweMode
Ukuze i-laser oscillation yenzeke, inzuzo ebonelelwa yi-medium kufuneka idlule ilahleko ngaphakathi kwendawo. Le meko, idityaniswa nemfuno ye-coherent wave superposition, iyalela ukuba kuphela iindlela ezithile zelongitudinal ezixhaswayo. Isithuba semowudi kunye nolwakhiwo lwemowudi iyonke luphenjelelwa bubude bomzimba bomgodi kunye nesalathiso sokuphinda siqhawuke sendlela yokuzuza[6].
Ukuqukumbela
Uyilo kunye nokusebenza kweenkqubo zelaser kubandakanya uluhlu olubanzi lwefiziksi kunye nemigaqo yobunjineli. Ukusuka kwi-quantum mechanics elawula i-gain medium ukuya kubunjineli obuntsonkothileyo be-optical cavity, icandelo ngalinye lenkqubo ye-laser lidlala indima ebalulekileyo ekusebenzeni kwayo ngokubanzi. Eli nqaku libonelele ngelizwe elintsonkothileyo letekhnoloji yelaser, libonelela ngemibono ehambelana nokuqonda okuphambili koonjingalwazi kunye neenjineli zamehlo ebaleni.
Iimbekiselo
- 1. Siegman, AE (1986). IiLaser. Iincwadi zeNzululwazi zeYunivesithi.
- 2. Svelto, O. (2010). Imigaqo yeLasers. Springer.
- 3. Koechner, W. (2006). Ubunjineli beLaser yeLizwe eliSolid. Springer.
- 4. Piper, JA, & Mildren, RP (2014). Diode Pumped Solid State Lasers. Kwi-Handbook ye-Laser Technology kunye nezicelo (Vol. III). CRC Press.
- 5. Milonni, PW, & Eberly, JH (2010). IFiziksi yeLaser. Wiley.
- 6. Silfvast, WT (2004). Laser Fundamentals. IYunivesithi yaseCambridge Press.
Ixesha lokuposa: Nov-27-2023