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Iyini i-laser ye-cryogenic
Iyini "i-laser ye-cryogenic"? Eqinisweni, yi-laser edinga ukusebenza kwezinga lokushisa eliphansi endaweni yokuzuza. Umqondo wama-laser asebenza emazingeni okushisa aphansi awumusha: i-laser yesibili emlandweni yayiyi-cryogenic. Ekuqaleni, lo mqondo wawunzima ukufeza ukusebenza kwezinga lokushisa legumbi, futhi ...Funda kabanzi -
Ukusebenza kahle kwe-quantum kwe-photodetector kwephula umkhawulo wethiyori
Ngokusho kwenethiwekhi yenhlangano ye-physics muva nje ibike ukuthi abacwaningi baseFinland bathuthukise i-black silicon photodetector enekhono langaphandle le-quantum elingu-130%, okungokokuqala ukuthi ukusebenza kahle kwamadivayisi e-photovoltaic kudlule umkhawulo wethiyori ongu-100%, oku...Funda kabanzi -
Imiphumela yakamuva yocwaningo lwe-photodetectors eziphilayo
Abacwaningi bathuthukise futhi babonise ukukhanya okusha okuluhlaza okumunca ama-photodetector abonakalayo e-organic azwela kakhulu futhi ahambisana nezindlela zokukhiqiza ze-CMOS. Ukufaka la ma-photodetector amasha kuma-sensor esithombe se-silicone hybrid kungaba usizo ezinhlelweni eziningi. Lokhu...Funda kabanzi -
Umfutho wokuthuthukiswa kwenzwa ye-infrared muhle
Noma iyiphi into enezinga lokushisa elingaphezu kuka-zero ophelele ikhipha amandla emkhathini ngendlela yokukhanya kwe-infrared. Ubuchwepheshe bokuzwa obusebenzisa imisebe ye-infrared ukukala amanani afanele angokwenyama bubizwa ngokuthi ubuchwepheshe bokuzwa kwe-infrared. Ubuchwepheshe bezinzwa ze-infrared bungenye yezindlela ezisheshayo zokuthuthukisa...Funda kabanzi -
Isimiso se-laser kanye nokusetshenziswa kwaso
I-Laser ibhekisela enkambisweni nasethuluzini lokukhiqiza imisebe yokukhanya ehlanganisiwe, ehlanganisiwe, ehambisanayo ngokusebenzisa ukukhuliswa kwemisebe okukhuthaziwe kanye nempendulo edingekayo. Ngokuyisisekelo, ukukhiqizwa kwe-laser kudinga izinto ezintathu: "i-resonator," "i-gain medium," kanye "ne-pu...Funda kabanzi -
Kuyini i-integrated optics?
Umqondo we-integrated optics wethulwa nguDkt. Miller waseBell Laboratories ngo-1969. I-integrated optics iyisifundo esisha esihlola futhi sithuthukise amadivayisi optical kanye nezinhlelo zamadivayisi optical electronic hybrid besebenzisa izindlela ezihlanganisiwe ngokusekelwe kuma-optoelectronics kanye nama-microelectronics.Funda kabanzi -
Isimiso sokupholisa nge-laser kanye nokusetshenziswa kwayo kuma-athomu abandayo
Isimiso sokupholisa nge-laser kanye nokusetshenziswa kwayo kuma-athomu abandayo Ku-physics yama-athomu abandayo, umsebenzi omningi wokuhlola udinga ukulawula izinhlayiya (ukubopha ama-athomu e-ionic, njengewashi le-athomu), ukuzehlisa ijubane, kanye nokuthuthukisa ukunemba kokulinganisa. Ngokuthuthuka kobuchwepheshe be-laser, i-laser coo...Funda kabanzi -
Isingeniso kuma-photodetector
I-photodetector iyithuluzi eliguqula izimpawu zokukhanya zibe izimpawu zikagesi. Ku-photodetector ye-semiconductor, isithwali esikhiqizwe isithombe esivuselelwe yi-photon yesigameko singena kwisekethe yangaphandle ngaphansi kwe-voltage ye-bias esetshenzisiwe bese sakha i-photocurrent elinganisekayo. Ngisho noma kunezimpendulo eziphezulu...Funda kabanzi -
Iyini i-laser esheshayo
A. Umqondo wama-laser asheshayo Ama-laser asheshayo avame ukubhekisela kuma-laser avaliwe ngemodi asetshenziselwa ukukhipha ama-pulse amafushane kakhulu, isibonelo, ama-pulse esikhathi se-femtosecond noma se-picosecond. Igama elinembile kakhulu lingaba yi-laser ye-pulse emfushane kakhulu. Ama-laser e-pulse amafushane kakhulu cishe angama-laser avaliwe ngemodi, kodwa ...Funda kabanzi -
Umqondo kanye nokuhlukaniswa kwama-nanolaser
I-Nanolaser uhlobo lwedivayisi encane nencane eyenziwe ngezinto ezincane ezifana ne-nanowire njenge-resonator futhi ingakhipha i-laser ngaphansi kwe-photoexcitation noma i-electric excitation. Usayizi wale laser uvame ukuba ngamakhulu ama-micron noma amashumi ama-micron kuphela, futhi ububanzi bufinyelela ku-nanometer ...Funda kabanzi -
I-spectroscopy yokuqhekeka okubangelwa yi-laser
I-Laser-Induced Plasma Spectroscopy (LIBS), eyaziwa nangokuthi i-Laser-Induced Plasma Spectroscopy (LIPS), iyindlela yokuthola ama-spectral esheshayo. Ngokugxilisa i-laser pulse ngamandla aphezulu ebusweni be-target yesampula evivinyiwe, i-plasma ikhiqizwa yi-ablation excitation, kanye ...Funda kabanzi -
Iyini i-modulator yokukhanya kwendawo?
I-Spatial light modulator isho ukuthi ngaphansi kokulawula okusebenzayo, ingashintsha amanye amapharamitha ensimu yokukhanya ngama-molecule ekristalu eliwuketshezi, njengokushintsha ubukhulu bensimu yokukhanya, ukuguqula isigaba ngenkomba yokubuyisa, ukuguqula isimo se-polarization ngokujikeleza kwe...Funda kabanzi
