Gallium nitride (GaN)--cov ntaub ntawv raws li lub npe hu ua thib peb-tiam semiconductors, uas nws spectral range npog tag nrho cov wavelength ntawm ze-infrared, pom thiab ultraviolet, thiab muaj cov ntawv thov tseem ceeb hauv thaj chaw ntawm optoelectronics.GaN-raws li ultraviolet lasers, vim lawv luv wavelengths, siab photon zog, muaj zog tawg thiab lwm yam ntxwv, muaj ib tug tseem ceeb daim ntawv thov kev cia siab nyob rau hauv lub teb ntawm ultraviolet lithography, ultraviolet curing, kuaj kab mob, thiab ultraviolet kev sib txuas lus. Txawm li cas los xij, vim tias GaN-raws li UV lasers tau npaj raws li qhov tsis sib haum xeeb loj heterogeneous epitaxial cov khoom siv thev naus laus zis, cov khoom siv tsis raug muaj ntau, doping nyuaj, quantum zoo luminescence efficiency tsawg, thiab cov cuab yeej poob yog loj, uas yog lub thoob ntiaj teb semiconductor. lasers nyob rau hauv lub tshav pob ntawm kev tshawb fawb ntawm qhov nyuaj, thiab tau txais kev saib zoo nyob rau hauv tsev thiab txawv teb chaws.
Zhao Degang, tus kws tshawb fawb thiab Yang Jing, tus kws tshawb fawb ntawm lub koom haum ntawm Semiconductor Research,Suav Academy ntawm Sciences(CAS) tau tsom mus rau GaN-based optoelectronic cov ntaub ntawv thiab cov khoom siv tau ntev, thiab tsim GaN-raws li UV lasers hauv 2016 [J. Ib nrab. 38, 051001 (2017)], thiab paub txog cov hluav taws xob txhaj tshuaj zoo siab AlGaN UV lasers (357.9 nm) hauv 2022 [J. Semicond. 43, 1 (2022)]. Ib nrab. 43, 1 (2022)], thiab nyob rau hauv tib lub xyoo, lub high-power UV laser nrog ib tug nruam tso zis zog ntawm 3.8 W ntawm chav tsev kub twb paub lawm [Opt. Laser Technol. 156, 108574 (2022)]. Tsis ntev los no, peb pab neeg tau ua tiav qhov tseem ceeb hauv GaN-raws li high-power UV lasers, thiab pom tias cov yam ntxwv kub tsis zoo ntawm UV lasers feem ntau cuam tshuam rau qhov tsis muaj zog ntawm cov cab kuj hauv UV quantum qhov dej, thiab cov yam ntxwv kub ntawm lub zog siab. UV lasers tau txhim kho tau zoo los ntawm kev qhia txog cov qauv tshiab ntawm AlGaN quantum teeb meem thiab lwm yam txuj ci, thiab cov khoom siv hluav taws xob tas li ntawm UV lasers ntawm chav tsev kub tau ntxiv mus rau 4.6 W, nrog rau lub zog ntawm 386.8 nm. Daim duab 1 qhia qhov excitation spectrum ntawm lub high-power UV laser, thiab daim duab 2 qhia lub optical zog-tam sim no-voltage (PIV) nkhaus ntawm lub UV laser. Kev tawg ntawm GaN-raws li high-power UV laser yuav txhawb lub localization ntawm cov cuab yeej thiab txhawb lub domestic UV lithography, ultraviolet (UV) lithography, UV laser, thiabUV laser kev lag luam, nrog rau kev txhim kho cov thev naus laus zis tshiab xws li cov qauv tshiab ntawm quantum barriers. Hauv tsev UV lithography, UV kho, UV kev sib txuas lus thiab lwm yam kev lag luam ntawm kev ywj pheej.
Cov txiaj ntsig tau luam tawm hauv Optics Letters li "Kev txhim kho qhov kub thiab txias ntawm GaN-based ultraviolet laser diodes los ntawm kev siv InGaN/AlGaN quantum wells" [Optics Letters 49 1305 (2024) https://doi.org/10.1364/OL. 5155] ib. Cov txiaj ntsig tau luam tawm hauv Optics Letters nyob rau hauv lub npe ntawm "Kev txhim kho qhov kub thiab txias ntawm GaN-based ultraviolet laser diodes los ntawm kev siv InGaN/AlGaN quantum wells" [Optics Letters 49, 1305 (2024) https://doi.org/10.1364/OL .515502. Dr. Jing Yang yog thawj tus kws sau ntawv thiab Dr. Degang Zhao yog tus sau cov ntawv sib xws. Txoj haujlwm no tau txais kev txhawb nqa los ntawm ntau qhov haujlwm, suav nrog National Key Research and Development Program of China, National Natural Science Foundation of China, thiab Strategic Pilot Science thiab Technology Special Project of Chinese Academy of Sciences.
