Ama-laser ayinkimbinkimbi e-Microcavity avela ezifundazweni ezi-oda kuya ezimweni eziphazamisekile

Ama-laser ayinkimbinkimbi e-Microcavity avela ezifundazweni ezi-oda kuya ezimweni eziphazamisekile

I-laser evamile iqukethe izinto ezintathu eziyisisekelo: umthombo wephampu, i-gain medium ekhulisa imisebe evuselelwe, kanye nesakhiwo se-cavity esikhiqiza i-optical resonance. Lapho ubukhulu be-cavity ye-i-laserNjengoba iseduze nezinga le-micron noma le-submicron, isibe ngenye yezindawo ezithandwa kakhulu ocwaningweni emphakathini wezemfundo: ama-laser e-microcavity, angafeza ukuxhumana okubalulekile kokukhanya nezinto ngobuningi obuncane. Ukuhlanganisa ama-microcavity nezinhlelo eziyinkimbinkimbi, njengokufaka imingcele ye-cavity engajwayelekile noma engahlelekile, noma ukufaka imidiya yokusebenza eyinkimbinkimbi noma engahlelekile kuma-microcavity, kuzokhulisa izinga lenkululeko yokukhishwa kwe-laser. Izici ezingezona ezokwakheka ngokomzimba zama-cavity angahlelekile ziletha izindlela zokulawula eziningi zamapharamitha e-laser, futhi zingandisa amandla ayo okusebenzisa.

Izinhlelo ezahlukene zokungahleliweama-laser amancane
Kuleli phepha, ama-laser e-microcavity angahleliwe ahlukaniswa kusukela kubukhulu obuhlukene be-cavity okokuqala ngqa. Lo mehluko awugcini nje ngokugqamisa izici zokukhishwa ezihlukile ze-laser ye-microcavity engahleliwe ngobukhulu obuhlukene, kodwa futhi ucacisa izinzuzo zomehluko wosayizi we-microcavity engahleliwe emasimini ahlukahlukene okulawula kanye nokusetshenziswa. I-microcavity yesimo esiqinile esinezinhlangothi ezintathu ivame ukuba nevolumu yemodi encane, ngaleyo ndlela ifinyelele ukusebenzisana okunamandla kokukhanya kanye nezinto. Ngenxa yesakhiwo sayo esivaliwe esinezinhlangothi ezintathu, insimu yokukhanya ingatholakala kakhulu ngobukhulu obuthathu, ngokuvamile nge-factor yekhwalithi ephezulu (i-Q-factor). Lezi zici ziyenza ifaneleke ukuzwa okunembile okuphezulu, isitoreji se-photon, ukucubungula ulwazi lwe-quantum kanye nezinye izinkambu zobuchwepheshe obuphambili. Uhlelo lwefilimu oluvulekile olunezinhlangothi ezimbili luyipulatifomu efanelekile yokwakha izakhiwo ze-planar ezingahlelekile. Njengendiza ye-dielectric engahlelekile enezinhlangothi ezimbili ene-gain and scattering ehlanganisiwe, uhlelo lwefilimu oluncane lungabamba iqhaza ngenkuthalo ekwakhiweni kwe-laser engahleliwe. Umphumela we-planar waveguide wenza ukuhlanganiswa nokuqoqwa kwe-laser kube lula. Njengoba ubukhulu bomgodi buncishisiwe ngokwengeziwe, ukuhlanganiswa kwempendulo kanye nemidiya yokuthola ulwazi ku-waveguide enobukhulu obubodwa kungavimbela ukusabalala kokukhanya okuqondile ngenkathi kuthuthukiswa ukukhanya kwe-axial kanye nokuxhuma. Le ndlela yokuhlanganisa ekugcineni ithuthukisa ukusebenza kahle kokukhiqizwa kanye nokuxhuma kwe-laser.

Izici zokulawula zama-laser angahleliwe e-microcavity
Izinkomba eziningi zama-laser endabuko, njengokuhambisana, umkhawulo, isiqondiso sokukhipha kanye nezici ze-polarization, yizona zindlela ezibalulekile zokulinganisa ukusebenza kokukhipha kwama-laser. Uma kuqhathaniswa nama-laser avamile anezimbobo ezilinganayo eziqinile, i-laser ye-microcavity engahleliwe inikeza ukuguquguquka okwengeziwe ekulawulweni kwamapharamitha, okubonakaliswa ngobukhulu obuningi kufaka phakathi isizinda sesikhathi, isizinda se-spectral kanye nesizinda sendawo, okugqamisa ukulawulwa okunezinhlangothi eziningi kwe-laser ye-microcavity engahleliwe.

Izici zokusetshenziswa kwama-laser angahleliwe e-microcavity
Ukuhambisana okuphansi kwendawo, ukungahleleki kwemodi kanye nokuzwela endaweni ezungezile kunikeza izici eziningi ezinhle zokusetshenziswa kwama-laser e-stochastic microcavity. Ngesixazululo sokulawula imodi kanye nokulawula isiqondiso se-laser engahleliwe, lo mthombo wokukhanya oyingqayizivele usetshenziswa kakhulu ekuthwebuleni izithombe, ekuxilongweni kwezokwelapha, ekuzweleni, ekuxhumaneni ngolwazi nakwezinye izinkambu.
Njenge-laser encane engasebenzi kahle esikalini esincane nesincane, i-laser encane engahleliwe inozwela kakhulu ezinguqukweni zemvelo, futhi izici zayo ze-parametric zingasabela ezinkombeni ezahlukahlukene ezibucayi eziqapha indawo yangaphandle, njengokushisa, umswakama, i-pH, ukuhlushwa koketshezi, inkomba yokubuyisa, njll., okudala ipulatifomu engcono kakhulu yokufezwa kwezicelo zokuzwa ukuzwela okuphezulu. Emkhakheni wezithombe, i-elementaryumthombo wokukhanyakufanele ibe nobuningi obukhulu be-spectral, umphumela oqondile oqondile kanye nokuhambisana okuphansi kwendawo ukuvimbela imiphumela yokuphazamiseka kwe-speckle. Abacwaningi babonise izinzuzo ze-random lasers zokuthwebula izithombe ezingenama-speckle ku-perovskite, i-biofilm, ama-liquid crystal scatterers kanye nabathwali bezicubu zeseli. Ekuxilongweni kwezokwelapha, i-random microcavity laser ingathwala ulwazi oluhlakazekile oluvela kumnikazi wezinto eziphilayo, futhi isetshenziswe ngempumelelo ukuthola izicubu ezahlukahlukene zezinto eziphilayo, okunikeza lula ukuxilongwa kwezokwelapha okungangenisi.

Esikhathini esizayo, ukuhlaziywa okuhlelekile kwezakhiwo ze-microcavity eziphazamisekile kanye nezindlela eziyinkimbinkimbi zokukhiqiza i-laser kuzophelela kakhulu. Ngokuqhubeka kwesayensi yezinto zokwakha kanye ne-nanotechnology, kulindeleke ukuthi kukhiqizwe izakhiwo ze-microcavity eziphazamisekile nezinhle nezisebenzayo, ezinamandla amakhulu okukhuthaza ucwaningo oluyisisekelo kanye nezicelo ezisebenzayo.