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Kodi laser ya cryogenic ndi chiyani?
Kodi "laser ya cryogenic" ndi chiyani? Ndipotu, ndi laser yomwe imafunika kugwiritsa ntchito kutentha kochepa mu gain medium. Lingaliro la ma laser omwe amagwira ntchito kutentha kochepa si latsopano: laser yachiwiri m'mbiri inali cryogenic. Poyamba, lingaliroli linali lovuta kukwaniritsa ntchito ya kutentha kwa chipinda, ndipo ...Werengani zambiri -
Kugwiritsa ntchito bwino kwa chowunikira zithunzi kumaphwanya malire a chiphunzitso
Malinga ndi bungwe la akatswiri a sayansi ya zamoyo posachedwapa, ofufuza aku Finland apanga chida chowunikira kuwala kwa silicon chakuda chokhala ndi mphamvu yakunja ya quantum ya 130%, komwe ndi koyamba kuti mphamvu ya zida zamagetsi za photovoltaic ipitirire malire a 100%, zomwe...Werengani zambiri -
Zotsatira zaposachedwa za kafukufuku wa organic photodetectors
Ofufuza apanga ndikuwonetsa kuwala kobiriwira komwe kumayamwa ma photodetector owoneka bwino achilengedwe omwe ndi osavuta kugwiritsa ntchito komanso ogwirizana ndi njira zopangira ma CMOS. Kuphatikiza ma photodetector atsopanowa mu silicone hybrid image sensors kungakhale kothandiza pazinthu zambiri. Izi...Werengani zambiri -
Kukula kwa sensor ya infrared kuli bwino
Chinthu chilichonse chomwe chili ndi kutentha kopitilira zero yeniyeni chimatulutsa mphamvu kupita mumlengalenga mu mawonekedwe a kuwala kwa infrared. Ukadaulo wozindikira womwe umagwiritsa ntchito kuwala kwa infrared poyesa kuchuluka koyenera kwa thupi umatchedwa ukadaulo wozindikira wa infrared. Ukadaulo wa sensor ya infrared ndi umodzi mwa njira zofulumira kwambiri zopangidwira...Werengani zambiri -
Mfundo ya laser ndi momwe imagwiritsidwira ntchito
Laser imatanthauza njira ndi chida chopangira kuwala kolumikizana, kofanana, kogwirizana kudzera mu kukulitsa kwa radiation komanso mayankho ofunikira. Mwachidule, kupanga laser kumafuna zinthu zitatu: "resonator," "gain medium," ndi "pu...Werengani zambiri -
Kodi ma optics ophatikizidwa ndi chiyani?
Lingaliro la ma optics ophatikizidwa linaperekedwa ndi Dr. Miller wa Bell Laboratories mu 1969. Ma optics ophatikizidwa ndi nkhani yatsopano yomwe imaphunzira ndikupanga zida zamagetsi ndi makina amagetsi osakanikirana pogwiritsa ntchito njira zophatikizidwa potengera ma optoelectronics ndi ma microelectronics.Werengani zambiri -
Mfundo yoziziritsira laser ndi momwe imagwirira ntchito pa maatomu ozizira
Mfundo yoziziritsira ya laser ndi momwe imagwirira ntchito pa maatomu ozizira Mu fizikisi ya atomu yozizira, ntchito zambiri zoyesera zimafuna kuwongolera tinthu tating'onoting'ono (kutseka maatomu a ionic, monga mawotchi a atomu), kuwachepetsa, ndikukweza kulondola kwa muyeso. Ndi chitukuko cha ukadaulo wa laser, laser coo...Werengani zambiri -
Chiyambi cha zozindikira zithunzi
Chowunikira kuwala ndi chipangizo chomwe chimasintha zizindikiro za kuwala kukhala zizindikiro zamagetsi. Mu chowunikira kuwala cha semiconductor, chonyamulira chopangidwa ndi zithunzi chomwe chimayambitsidwa ndi photon yomwe yachitika chimalowa mu dera lakunja pansi pa mphamvu ya bias yomwe imagwiritsidwa ntchito ndipo chimapanga photocurrent yoyezeka. Ngakhale pa mayankho apamwamba kwambiri...Werengani zambiri -
Kodi laser yothamanga kwambiri ndi chiyani?
A. Lingaliro la ma laser othamanga kwambiri Ma laser othamanga kwambiri nthawi zambiri amatanthauza ma laser otsekedwa mode omwe amagwiritsidwa ntchito kutulutsa ma pulse afupi kwambiri, mwachitsanzo, ma pulse a femtosecond kapena picosecond duration. Dzina lolondola kwambiri lingakhale ultrashort pulse laser. Ma laser othamanga afupi kwambiri ndi pafupifupi ma laser otsekedwa mode, koma ...Werengani zambiri -
Lingaliro ndi magulu a ma nanolasers
Nanolaser ndi mtundu wa chipangizo chaching'ono ndi chaching'ono chomwe chimapangidwa ndi zinthu zina monga nanowire ngati resonator ndipo chimatha kutulutsa laser pansi pa photoexcitation kapena electric excitation. Kukula kwa laser iyi nthawi zambiri kumakhala ma microns mazana ambiri kapena ma microns makumi ambiri, ndipo m'mimba mwake ndi mpaka nanometer ...Werengani zambiri -
Kusanthula kwa laser-induced breakdown spectroscopy
Laser-Induced Breakdown Spectroscopy (LIBS), yomwe imadziwikanso kuti Laser-Induced Plasma Spectroscopy (LIPS), ndi njira yodziwira mwachangu ma spectral. Mwa kuyang'ana pulse ya laser yokhala ndi mphamvu zambiri pamwamba pa cholinga cha chitsanzo choyesedwa, plasma imapangidwa ndi ablation excitation, ndi ...Werengani zambiri -
Kodi chowongolera kuwala kwa malo ndi chiyani?
Modulator ya kuwala kwa malo imatanthauza kuti pansi pa ulamuliro wogwira ntchito, imatha kusintha magawo ena a kuwala kudzera mu mamolekyu amadzimadzi a kristalo, monga kusintha kutalika kwa kuwala, kusintha gawo kudzera mu refractive index, kusintha mkhalidwe wa polarization kudzera mu kuzungulira kwa ...Werengani zambiri
