Ikristale yeGase

I-Gallium Selenide (i-GaSe) i-crystal e-optical single engabonakaliyo, idibanisa i-coefficient enkulu engekho-linear, i-threshold ephezulu yomonakalo kunye noluhlu olubanzi lokungafihli.I-GaSe yimathiriyeli efanelekileyo kakhulu ye-SHG embindini we-IR.I-DIEN TECHbonelela ngekristale yeGaSe enobungakanani obukhulu obukhethekileyo kunye nomgangatho ophezulu.

Iipropati zokuphinda-phinda kabini kwe-GaSe zaphononongwa kuluhlu lwamaza phakathi kwe-6.0 µm kunye ne-12.0 µm.I-GaSe isetyenziswe ngempumelelo kwi-SHG esebenzayo ye-CO2 laser (ukuya kwi-9% yokuguqulwa);ye-SHG ye-pulsed CO, CO2 kunye neekhemikhali ze-DF-laser (l = 2.36 µm) imitha;ukuguqulwa kwe-CO kunye ne-CO2 laser radiation kuluhlu olubonakalayo;ukuveliswa kwe-infrared pulses ngokusebenzisa umahluko ophindaphindiweyo wokuxuba i-Neodymium kunye ne-laser yedayi ye-infrared okanye (F-)-centre laser pulses;Isizukulwana sokukhanya se-OPG ngaphakathi kwe-3.5–18 µm;i-terahertz (i-T-reyi) ukuveliswa kwemitha.Akunakwenzeka ukusika iikristale kwii-angles ezithile ezihambelana nesigaba ngenxa yesakhiwo sezinto eziphathekayo (i-cleave along (001) indiza) ukunciphisa iindawo zezicelo.
I-GaSe ithambile kakhulu kwaye inomaleko wekristale.Ukuveliswa kwekristale enobunzima obuchaziweyo sithatha ukutyeba kokuqala kungenanto, Umzekelo, ubukhulu be-1-2 mm kwaye emva koko siqale ukususa umaleko ngomaleko sizama ukusondela kubunzima obucwangcisiweyo ngelixa ugcina ukuguda okuhle kunye nokuthe tyaba.Nangona kunjalo, kubunzima obumalunga ne-0.2-0.3 mm okanye ngaphantsi kwepleyiti ye-GaSe igoba ngokulula kwaye sifumana indawo egobileyo endaweni yesicaba.
Ngoko ke sihlala sihlala kwi-0.2 mm ubukhulu be-10x10 mm ikristale efakwe kwi-dia.1'' isibambi nge-CA yokuvula dia.9-9.5 mm.
Ngamanye amaxesha samkela ii-odolo zeekristale ze-0.1 mm, nangona kunjalo, asiqinisekisi ukubanda kakuhle kweekristale ezincinci.
Ukusetyenziswa kweekristale zeGaSe:
• Ukuveliswa kwemitha ye-THz (T-rays);
• Uluhlu lwe-THz: 0.1-4 THz;
• I-SHG esebenzayo ye-CO 2 laser (ukuya kwi-9% yokuguqulwa);
• Kwi-SHG ye-pulsed CO, CO2 kunye nekhemikhali ye-DF-laser (l = 2.36 mkm) imitha;
• Ukuguqulwa kwe-CO kunye ne-CO2 laser radiation kuluhlu olubonakalayo;ukuveliswa kwe-infrared pulses ngokusebenzisa umahluko ophindaphindiweyo wokuxuba i-Neodymium kunye ne-laser yedayi ye-infrared okanye (F-)-centre laser pulses;
• Ukuveliswa kokukhanya kwe-OPG ngaphakathi kwe-3.5 - 18 mkm.
I-SHG embindini we-IR (CO2, CO, ikhemikhali ye-DF-laser njl.njl.)
ukuguqulwa kwemitha yelaser ye-IR kuluhlu olubonakalayo
Ukuveliswa kweParametric ngaphakathi kwe-3 - 20 µm
Iimpawu eziphambili zeekristale zeGase:
Uluhlu lokungafihli, µm 0.62 - 20
Iqela elikhomba 6m2
Iiparamitha zeLattice a = 3.74, c = 15.89 Å
Ubuninzi, g/cm3 5.03
Mohs ubunzima 2
Izalathisi eziphinda-phindayo:
ku-5.3 µm no= 2.7233, ne= 2.3966
ku-10.6 µm no= 2.6975, ne= 2.3745
I-non-linear coefficient, pm/V d22 = 54
Hamba nge-4.1° nge-5.3 µm
I-Optical damage threshold, MW/cm2 28 (9.3 µm, 150 ns);0.5 (10.6 µm, kwimo ye-CW);30 (1.064 µm, 10 ns)