I-Gase Crystal

I-Gallium Selenide (GaSe) i-non-linear optical crystal eyodwa, ehlanganisa i-coefficient enkulu engekho umugqa, i-threshold yomonakalo ophezulu kanye nobubanzi obuningi bokukhanyela.I-GaSe iyimpahla efaneleke kakhulu ye-SHG phakathi ne-IR.I-DIEN TECHhlinzeka ngekristalu ye-GaSe enosayizi omkhulu oyingqayizivele kanye nekhwalithi ephezulu.

Izakhiwo zokuphindaphinda imvamisa ye-GaSe zacwaningwa ebangeni le-wavelength phakathi kuka-6.0 µm no-12.0 µm.I-GaSe isetshenziselwe ngempumelelo i-SHG ye-CO2 laser (kufika ku-9% ukuguqulwa);ye-SHG ye-pulsed CO, CO2 kanye nekhemikhali ye-DF-laser (l = 2.36 µm) imisebe;ukuguqulwa kwemisebe ye-laser ye-CO ne-CO2 ibe uhla olubonakalayo;ukukhiqizwa kwe-infrared pulses ngokusebenzisa umehluko wokuhlanganisa imvamisa ye-Neodymium kanye ne-infrared dye laser noma (F-)-centre laser pulses;Ukukhiqiza ukukhanya kwe-OPG phakathi kuka-3.5–18 µm;ukukhiqizwa kwemisebe ye-terahertz (T-rays).Akunakwenzeka ukusika amakristalu ama-engeli athile ahambisana nesigaba ngenxa yesakhiwo sezinto ezibonakalayo (i-cleave along (001) indiza) ekhawulela izindawo zohlelo lokusebenza.
I-GaSe ithambile kakhulu futhi iyikristalu enezingqimba.Ukuze kukhiqizwe ikristalu enogqinsi olucacisiwe sithatha ukujiya kokuqala kungenalutho,Isibonelo, ugqinsi luka-1-2 mm bese siqala ukususa ungqimba ngongqimba sizama ukusondela ekugqineni oku-odelwe ngenkathi sigcina ukushelela okuhle kanye nokucaba.Nokho, ngogqinsi olungaba ngu-0.2-0.3 mm noma ngaphansi ipuleti le-GaSe liyagoba futhi sithola indawo egobile esikhundleni sendawo eyisicaba.
Ngakho-ke ngokuvamile sihlala ku-0.2 mm ukujiya ngo-10x10 mm ikristalu efakwe ku-dia.1'' isibambi esine-CA yokuvula dia.9-9.5 mm.
Kwesinye isikhathi samukela ama-oda amakristalu angu-0.1 mm, nokho, asikuqinisekisi ukucaba okuhle kwamakristalu amancane kangaka.
Ukusetshenziswa kwamakristalu e-GaSe:
• Ukukhiqizwa kwemisebe ye-THz (T-rays);
• THz Ububanzi:0.1-4 THz;
• I-SHG ephumelelayo ye-CO 2 laser (ukuguqulwa kufika ku-9%);
• Nge-SHG ye-pulsed CO, CO2 kanye nekhemikhali ye-DF-laser (l = 2.36 mkm) imisebe;
• Ukuguqulwa kwemisebe ye-laser ye-CO ne-CO2 ibe ibanga elibonakalayo;ukukhiqizwa kwe-infrared pulses ngokusebenzisa umehluko wokuhlanganisa imvamisa ye-Neodymium kanye ne-infrared dye laser noma (F-)-centre laser pulses;
• Ukukhiqiza ukukhanya kwe-OPG phakathi kuka-3.5 - 18 mkm.
I-SHG phakathi kwe-IR (CO2, CO, chemical DF-laser njll.)
ukuguqulwa kwemisebe ye-laser ye-IR ibe uhla olubonakalayo
Ukukhiqiza i-Parametric phakathi kuka-3 - 20 µm
Izici Eziyinhloko zamakristalu e-GaSe:
Ibanga lokubonisa ngale, µm 0.62 - 20
Iqembu lephoyinti 6m2
Amapharamitha e-Lattice a = 3.74, c = 15.89 Å
Ukuminyana, g/cm3 5.03
Mohs ubulukhuni 2
Izinkomba ze-refractive:
ku-5.3 µm no= 2.7233, ne= 2.3966
ku-10.6 µm no= 2.6975, ne= 2.3745
I-coefficient engaqondile, pm/V d22 = 54
Hamba ku-4.1° ku-5.3 µm
I-Optical damage threshold, MW/cm2 28 (9.3 µm, 150 ns);0.5 (10.6 µm, kumodi ye-CW);30 (1.064 µm, 10 ns)