Cov kauj ruam tseem ceeb tau ua tam sim tom qab tsim PN hlws ris lasers thaum lub tswv yim ntawm ob chav heterostructure laser tau tsim los ntawm nws tus kheej los ntawm us thiab Kroemer 11 Hauv nws tsab xov xwm, Kroemer tau thov. kev siv ob chav heterostructures rau cov neeg nqa khoom kaw hauv thaj av nquag.
Koj nkag siab dab tsi los ntawm ob chav heterostructure?
Ib ob lub heterostructure yog tsim thaum ob cov khoom siv hluav taws xob tau loj hlob mus rau hauv "sandwich". Ib qho khoom siv (xws li AlGaAs) yog siv rau txheej txheej sab nrauv (lossis cladding), thiab lwm qhov ntawm qhov sib txawv me me (xws li GaAs) yog siv rau txheej sab hauv.
Qhov txiaj ntsig ntawm ob chav heterostructure yog dab tsi?
Ua raws li cov txiaj ntsig lossis qhov zoo ntawm DH (Ob chav Heterojunction) LED: ➨ Nws muaj kev ua haujlwm siab dua nrog qis mus rau siab radiance piv rau tib homojuction (p-n +) hom LED. ➨ Emitting wavelength ntawm GaAs/AlGaAs raws li DH LEDs ntau yam approx. 0.8 ~ 0.9 µm.
Dab tsi yog ob chav heterostructure laser?
Ob chav heterostructure laser diode: Ob chav heterojunction laser diode yog tsim los ntawm sandwiching ib txheej ntawm cov khoom siv qis bandgap nrog ib txheej ntawm ob sab ntawm cov khaubncaws sab nraud povtseg siab.
heterostructure physics yog dab tsi?
Ib heterostructure txhais tau tias yog tus qauv semiconductor uas cov tshuaj muaj pes tsawg leeg hloov nrog txoj haujlwmQhov yooj yim tshaj plaws heterostructure muaj xws li ib qho heterojunction, uas yog ib qho kev sib tshuam hauv ib lub semiconductor crystal hla uas Cov tshuaj muaj pes tsawg leeg hloov pauv.
