Inqubekela phambili yocwaningo lwe-colloidal quantum dot lasers

Inqubekela phambili yocwaningo lweama-laser e-colloidal quantum dot
Ngokwezindlela ezahlukene zokupompa, ama-colloidal quantum dot lasers angahlukaniswa ngezigaba ezimbili: ama-optical pumped colloidal quantum dot lasers kanye nama-electrically pumped colloidal quantum dot lasers. Emikhakheni eminingi efana nelebhu kanye nemboni,ama-laser ampompiwe ngokubonakalayo, njenge-fiber lasers kanye ne-titanium-doped sapphire lasers, zidlala indima ebalulekile. Ngaphezu kwalokho, kwezinye izimo ezithile, njengasemkhakheni we-i-laser ye-microflow ebonakalayo, indlela ye-laser esekelwe ekupompeni kwe-optical iyona engcono kakhulu. Kodwa-ke, uma sicabangela ukuphatheka kalula kanye nobubanzi bezicelo, isihluthulelo sokusetshenziswa kwama-colloidal quantum dot lasers ukufeza umkhiqizo we-laser ngaphansi kokupompa kagesi. Kodwa-ke, kuze kube manje, ama-colloidal quantum dot lasers ampompelwe ngogesi awakaze atholakale. Ngakho-ke, ngokuqashelwa kwama-colloidal quantum dot lasers ampompelwe ngogesi njengomugqa oyinhloko, umbhali uqala ngokuxoxa ngesixhumanisi esibalulekile sokuthola ama-colloidal quantum dot lasers afakwe ngogesi, okungukuthi, ukuqashelwa kwe-colloidal quantum dot continuous wave optically pumped laser, bese enwebeka ku-colloidal quantum dot optically pumped laser, okungenzeka kakhulu ukuthi kube ngowokuqala ukuqashelwa ukusetshenziswa kwezentengiselwano. Isakhiwo somzimba salesi sihloko siboniswe kuMfanekiso 1.

Inselele ekhona
Ocwaningweni lwe-colloidal quantum dot laser, inselele enkulu kusese ukuthi ungayithola kanjani i-colloidal quantum dot gain medium enomkhawulo ophansi, inzuzo ephezulu, impilo ende yokuthola kanye nokuzinza okuphezulu. Nakuba kuye kwabikwa izakhiwo ezintsha nezinto ezifana nama-nanosheet, ama-giant quantum dots, ama-gradient gradient quantum dots, kanye nama-perovskite quantum dots, akukho dot elilodwa le-quantum eliqinisekisiwe emalabhorethri amaningi ukuthola i-continuous wave optically pumped laser, okubonisa ukuthi umkhawulo wokuzuza kanye nokuzinza kwama-quantum dots akwanele. Ngaphezu kwalokho, ngenxa yokuntuleka kwezindinganiso ezihlanganisiwe zokwenziwa kanye nokuhlukaniswa kokusebenza kwama-quantum dots, imibiko yokusebenza kwenzuzo yama-quantum dots avela emazweni ahlukene nasema-laboratory ihluke kakhulu, futhi ukuphindaphindeka akuphezulu, okuvimbela nokuthuthukiswa kwama-colloidal quantum dots anezakhiwo zenzuzo ephezulu.

Okwamanje, i-laser ye-quantum dot electropumped ayikakaqashelwa, okubonisa ukuthi kusenezinselele ocwaningweni lwe-physics oluyisisekelo kanye nobuchwepheshe obuyinhloko be-quantum dot.amadivayisi e-laserAmachashazi e-Colloidal quantum (QDS) ayizinto ezintsha zokuthola isixazululo ezingacutshungulwa, ezingabhekiselwa esakhiweni sedivayisi ye-electroinjection yama-diode akhipha ukukhanya kwemvelo (ama-LED). Kodwa-ke, izifundo zamuva zibonise ukuthi ukubhekisela okulula akwanele ukuqaphela i-electroinjection colloidal quantum dot laser. Uma sibheka umehluko wesakhiwo se-elekthronikhi kanye nemodi yokucubungula phakathi kwamachashazi e-colloidal quantum nezinto eziphilayo, ukuthuthukiswa kwezindlela ezintsha zokulungiselela ifilimu yesisombululo ezifanele amachashazi e-colloidal quantum nezinto ezinemisebenzi yokuthutha ye-electron kanye nembobo kuyindlela kuphela yokuthola i-electrolaser ebangelwa amachashazi e-quantum. Uhlelo lwe-colloidal quantum dot oluvuthiwe kakhulu luseyi-cadmium colloidal quantum dots equkethe izinsimbi ezisindayo. Uma sibheka ukuvikelwa kwemvelo kanye nezingozi zezinto eziphilayo, kuyinselele enkulu ukuthuthukisa izinto ezintsha ze-colloidal quantum dot laser eziqhubekayo.

Emsebenzini wesikhathi esizayo, ucwaningo lwama-laser e-quantum dot adonswe nge-optical kanye nama-laser e-quantum dot adonswe ngogesi kufanele luhambisane futhi ludlale indima ebaluleke ngokulinganayo ocwaningweni oluyisisekelo kanye nezicelo ezisebenzayo. Enkambisweni yokusebenzisa i-colloidal quantum dot laser, izinkinga eziningi ezivamile zidinga ukuxazululwa ngokushesha, futhi kusazohlolwa ukuthi zinganikezwa kanjani ngokugcwele izakhiwo nemisebenzi eyingqayizivele ye-colloidal quantum dot.