Doorashada isha laysarka ee ugu habboon: qiiqa qiiqa ee cidhifyada laser Qaybta koowaad

Doorashada ku habboonisha laysarka: laser semiconductor emission-ka
1. Hordhac
Laysarka semiconductorchips waxaa loo qaybiyaa gees-etting laser chips (EEL) iyo vertical cavity dusha sare ee luminaya laser chips (VCSEL) marka loo eego hababka wax soo saarka ee kala duwan ee resonators, iyo kala duwanaanshahooda qaabdhismeed gaar ah ayaa lagu muujiyay sawirka 1. Marka la barbar dhigo dalool toosan luminaya laser, gees. sii daaya horumarinta tignoolajiyada laser semiconductor waa mid aad u qaan-gaar ah, oo leh baaxad ballaaran oo dhererkeedu yahay, sareelectro-opticalwaxtarka beddelka, awood weyn iyo faa'iidooyin kale, aad ugu habboon processing laser, isgaarsiinta indhaha iyo beeraha kale. Waqtigan xaadirka ah, laser-ka-soo baxaya semiconductor waa qayb muhiim ah oo ka mid ah warshadaha optoelectronics, codsiyadooduna waxay dabooleen warshadaha, isgaarsiinta, sayniska, macaamiisha, militariga iyo hawada sare. Iyadoo horumarinta iyo horumarka tignoolajiyada, awoodda, isku hallaynta iyo waxtarka beddelka tamarta ee laser-ka-soo-saarka semiconductor ayaa si weyn loo hagaajiyay, rajada codsigooduna aad iyo aad bay u sii ballaaran tahay.
Marka xigta, waxaan kuu horseedi doonaa inaad si dheeraad ah u qadariso soo jiidashada gaarka ah ee dhinaca-baxintaleysarka semiconductor.

Jaantuska 1 (bidix) dhinaca sii daynaya laysarka semiconductor iyo (midig) dusha dalool toosan oo sii daynaya jaantuska qaab dhismeedka laysarka

2. Mabda'a shaqada ee semiconductor-ka sii daayaleysarka
Qaab dhismeedka laser semiconductor-ka soo baxaya waxaa loo qaybin karaa saddexda qaybood ee soo socda: gobolka firfircoon ee semiconductor, isha bamka iyo resonator indhaha. Si ka duwan resonators-ka daloolka toosan ee soo saara leysarka (kuwaas oo ka kooban muraayadaha Bragg ee sare iyo kan hoose), resonators ee aaladaha laser semiconductor-ka soo baxaya inta badan waxay ka kooban yihiin filimo muuqaal ah oo labada dhinac ah. Qaab dhismeedka qalabka EEL ee caadiga ah iyo qaab dhismeedka resonator ayaa lagu muujiyey Jaantuska 2. Sawirka ku jira qalabka laser semiconductor-ka-soo-baxa waxaa lagu xoojiyay xulashada qaabka resonator-ka, iyo laysarka ayaa loo sameeyay jihada barbar socota dusha sare ee substrate. Aaladaha laser semiconductor-ka soo baxaya waxay leeyihiin mawjadaha dhaadheer ee hawlgalka waxayna ku habboon yihiin codsiyo badan oo wax ku ool ah, si ay u noqdaan mid ka mid ah ilaha laser-ka ugu fiican.

Tusmooyinka qiimaynta wax qabad ee leysarka semiconductor-ka soo baxaya ayaa sidoo kale la socda leysarka kale ee semiconductor, oo ay ku jiraan: (1) laser lasing wavelong; (2) Xaddiga hadda jira ee Ith, taas oo ah, hadda kaas oo diode laser uu bilaabo inuu abuuro oscillation laser; (3) Iop hadda shaqeeya, taas oo ah, wadista hadda jirta marka diode laser uu gaaro awoodda wax soo saarka ee la qiimeeyay, cabbirkan waxaa lagu dabaqayaa naqshadeynta iyo habeynta wareegga wadista laysarka; (4) Waxtarka jiirada; (5) Xagasha kala duwanaanshaha toosan θ⊥; (6) Xagasha kala-duwanaanta tooska ah θ∥; (7) La soco Im hadda, taas oo ah, cabbirka hadda ee chip laser semiconductor ee awoodda wax soo saarka ee la qiimeeyay.

3. Horumarka cilmi baarista ee GaAs iyo GaN ku salaysan cidhifka soo saaraysa leysarka semiconductor
Laysarka semiconductor ee ku salaysan GaAs semiconductor-ka waa mid ka mid ah tignoolajiyada laser semiconductor ee ugu bislaaday. Waqtigan xaadirka ah, GAAS-ku-saleysan koox-infrared-ku-dhow (760-1060 nm) laser-ka-soosaaraya cidhifyada semiconductor ayaa si ballaaran loo isticmaalay ganacsi ahaan. Sida jiilka seddexaad ee semiconductor ka dib Si iyo GaAs, GaN waxay si weyn uga walaacsaneyd cilmi baarista sayniska iyo warshadaha sababta oo ah astaamo jireed iyo kiimiko oo aad u wanaagsan. Iyada oo la horumarinayo qalabka GAN-ku-salaysan optoelectronic iyo dadaalka cilmi-baarayaasha, GAN-ku-saleysan iftiinka iftiimiya iyo laser-ka-baxa ayaa la warshadeeyay.