Terahertz masosi agara ari imwe yeakanyanya kukosha matekinoroji mumunda weTHz radition.Nzira dzakawanda dzakaratidzwa kushanda kuti dzibudirire THz radition.Kazhinji, telectronics uye photonics techologies.Mune yakafayerwa yephotonics, nonlinear optical musiyano-frequency chizvarwa chakavakirwa pahombe isina mutsara coefficient, yakakwirira optical kukuvara pachikumbaridzo nonlinear makristasi ndiyo imwe yenzira dzekuwana yakakwirira simba, inotakurika, inotakurika, uye tembiricha yekamuri inoshanda THz wave.GaSe neZnGeP2(ZGP) makristasi asina mutsara anonyanya kushandiswa.
Makristasi eGaSe ane kunyura kwakaderera pamillimeter & THz wave, yakakwira yakakuvadzwa pachikumbaridzo uye yakakwira yechipiri isingaite coefficient (d22 = 54 pm/V), inowanzoshandiswa kugadzirisa Terahertz wave mukati me40μm uye zvakare refu waveband tunable Thz wave (kupfuura 40μm).Yakaratidza kuti inogoneka THz wave pa 2.60 -39.07μm apo match angle pa 11.19 ° -23.86 ° [eoo (e - o = o)], uye 2.60 -36.68μm kubuda kana match angle pa 12.19 ° -27.01 ° [ee (eoe (e) - o = e)].Uyezve, 42.39-5663.67μm tunable THz wave yakawanikwa apo machisi angled pa 1.13 ° -84.71 ° [oee (o - e = e)].
ZnGeP2 (ZGP) makristasi ane high nonlinear coefficient, high thermal conductivity, high optical yakakuvadzwa chikumbaridzo zvakare yakatsvagwa seyakanakisa THz sosi.ZnGeP2 inewo yechipiri isina mutsetse coefficient pa d36 = 75 pm/V), inova 160times yeKDP makristasi.Iwo maviri emhando yechikamu match angle yeZGP makristasi (1.03 ° -10.34 ° [oee (oe = e)] & 1.04 ° -10.39 ° [oeo (oe= e)]) kugadzirisa yakafanana THz kubuda (43.01 -5663.67μm), iyo oeo mhando yakaratidza kuve sarudzo iri nani nekuda kwayo yakakwirira inoshanda isina mutsara coefficient.Nenguva yakareba kwazvo, kubuda kweZnGeP2 makristasi seTerahertz sosi kwakaganhurirwa, nekuti kristaro yeZnGeP2 kubva kune vamwe vatengesi ine yakanyanya kunyura munzvimbo iri padyo ne infrared (1-2μm):Kutora coefficient> 0.7cm-1 @1μm uye> 0.06 cm-1@2μm.Nekudaro, DIEN TECH inopa ZGP(Muenzaniso: YS-ZGP) makristasi ane super low absorption:Absorption coefficient <0.35cm-1@1μm uye <0.02cm-1@2μm.Iwo epamberi YS-ZGP makristasi anoita kuti vashandisi vasvike zvakanyanya kuburitsa.
Reference'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.
