Imithombo ye-Terahertz isoloko iyeyona teknoloji ibalulekileyo kwintsimi ye-radition ye-THz.Iindlela ezininzi ziye zabonakaliswa zisebenza ukufezekisa i-radition ye-THz. Ngokuqhelekileyo, i-telectronics kunye ne-photonics techologies.Kwifayile ye-photonics, i-nonlinear optical difference-frequency generation esekelwe kwi-coefficient enkulu engabonakaliyo, i-high optical damage threshold threshold nonlinear crystals yenye yeendlela zokufumana amandla aphezulu, aphathekayo, aphathekayo, kunye negumbi lokushisa elisebenza nge-THz wave.I-GaSe kunye ne-ZnGeP2(ZGP) iikristale ezingaqhelekanga zisetyenziswa kakhulu.
Iikristale zeGaSe ezinokufunxwa okuphantsi kwi-millimeter & THz wave, umqobo owonakeleyo ophezulu kunye ne-coefficient ephezulu yesibini engeyonyani (d22 = 54 pm/V), iqhele ukusetyenziselwa ukusetyenzwa kwamaza eTerahertz ngaphakathi kwe-40μm kunye ne-waveband ende enokuqhutywa i-Thz wave (ngaphaya kwe-40μm).Kuye kwangqinwa ukuba i-Thz iyasebenziseka kwi-2.60 -39.07μm xa i-engile yomdlalo kwi-11.19 ° -23.86 ° [eoo (e - o = o)], kunye ne-2.60 -36.68μm imveliso xa i-engile yomdlalo kwi-12.19 ° -27.01 ° [eee (e) - o = e)].Ngaphezu koko, i-42.39-5663.67μm i-tuable THz wave yafunyanwa xa i-engile yomdlalo kwi-1.13 ° -84.71 ° [oee (o - e = e)].
Iikristale ze-ZnGeP2 (ZGP) ezine-coefficient ephezulu engabonakaliyo, i-high conductivity ye-thermal, i-high optical damaged threshold iphinde iphandwe njengomthombo obalaseleyo we-THz.I-ZnGeP2 nayo ine-coefficient yesibini engabonakaliyo kwi-d36 = 75 pm / V), eyi-160times ye-crystals ye-KDP.Iintlobo ezimbini zenqanaba lomdlalo we-engile yeekristale ze-ZGP (1.03 ° -10.34 ° [oee (oe = e)] & 1.04 ° -10.39 ° [oeo (oe= e)]) ukucubungula imveliso efanayo ye-THz (43.01 -5663.67μm), i uhlobo lwe-oeo lubonakalise ukuba lolona khetho lungcono ngenxa yolwakhiwo olusebenzayo oluphezulu olungasebenziyo.Ngexesha elide kakhulu, iproformance yemveliso yeekristale zeZnGeP2 njengomthombo weTerahertz yayilinganiselwe, kuba ikristale ye-ZnGeP2 evela kwabanye ababoneleli inofunxa oluphezulu kufutshane nengingqi ye-infrared (1-2μm):I-coefficient yokufunxa>0.7cm-1 @1μm kunye>0.06 cm-1@2μm.Nangona kunjalo, i-DIEN TECH ibonelela nge-ZGP (iModeli: YS-ZGP) iikristale ezinokufunxa okuphantsi kakhulu: i-absorption coefficient <0.35cm-1@1μm kunye <0.02cm-1@2μm.Iikristale eziphambili ze-YS-ZGP zenza abasebenzisi bafikelele kwimveliso engcono kakhulu.
Isalathiso:'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.I-Phys.Soc.
