Magwero a Terahertz nthawi zonse akhala amodzi mwa matekinoloje ofunikira kwambiri pamtundu wa THz radition.Njira zambiri zidatsimikiziridwa kuti zimagwira ntchito kuti zikwaniritse THz radition. Kawirikawiri, telectronics ndi photonics techologies.M'mafakitale a photonics, m'badwo wosawoneka bwino wa kuwala kosiyanasiyana kutengera kuchuluka kwamphamvu kopanda malire, makristasi owoneka bwino kwambiri ndi imodzi mwa njira zopezera mphamvu zambiri, zosinthika, zonyamula, komanso kutentha kwachipinda zikugwira ntchito THz wave.Gase ndi ZnGeP2(ZGP) makhiristo opanda mzere nthawi zambiri amagwiritsidwa ntchito.
Makhiristo a GaSe okhala ndi mayamwidwe otsika pa millimeter & THz wave, chigawo chowonongeka kwambiri komanso chokwera chachiwiri chosasinthika (d22 = 54 pm/V), amagwiritsidwa ntchito popanga mafunde a Terahertz mkati mwa 40μm komanso mafunde aatali a Thz wave (kupitirira 40μm).Zinatsimikiziridwa kuti zitha kugwiritsidwa ntchito ndi THz wave pa 2.60 -39.07μm pamene machesi ngodya pa 11.19 ° -23.86 ° [eoo (e - o = o)], ndi 2.60 -36.68μm linanena bungwe pamene machesi ngodya pa 12.19 ° -27.01 ° [ee (eoe (e) -o = e)].Komanso, 42.39-5663.67μm tunable THz yoweyula anapezedwa pamene machesi ngodya pa 1.13 ° -84.71 ° [oee (o - e = e)].
ZnGeP2 (ZGP) makhiristo okhala ndi coefficient apamwamba kwambiri, matenthedwe apamwamba, malo owonongeka owoneka bwino amafufuzidwanso ngati gwero labwino kwambiri la THz.ZnGeP2 ilinso ndi coefficient yachiwiri yopanda mzere pa d36 = 75 pm/V), yomwe ndi 160times ya makhiristo a KDP.Mitundu iwiri yofananira mbali ya makhiristo a ZGP (1.03 ° -10.34 ° [oee (oe = e)] & 1.04 ° -10.39 ° [oeo (oe = e)]) pokonza zotulutsa zofanana za THz (43.01 -5663.67μm), ndi mtundu wa ooo udakhala wabwinoko chifukwa umakhala wabwino kwambiri wopanda mzere.Kwa nthawi yayitali kwambiri, kutulutsa kwa makhiristo a ZnGeP2 monga gwero la Terahertz kunali kochepa, chifukwa galasi la ZnGeP2 lochokera kwa ogulitsa ena limayamwa kwambiri pafupi ndi dera la infrared (1-2μm):mayamwidwe amagetsi> 0.7cm-1 @1μm ndi> 0.06 cm-1@2μm.Komabe, DIEN TECH imapereka makhiristo a ZGP(Model: YS-ZGP) okhala ndi mayamwidwe otsika kwambiri:Kuyamwa kokwanira <0.35cm-1@1μm ndi <0.02cm-1@2μm.Makhiristo apamwamba a YS-ZGP amathandizira ogwiritsa ntchito kutulutsa bwino kwambiri.
Zolozera:'基于 GaSe 和 Zn GeP2 晶体差频产生可调谐太赫兹辐射的理论研究'2008 Chin.Phys.Soc.
