Gase Crystal

Gallium Selenide (GaSe) kristal na gani guda ɗaya maras mizani, yana haɗa babban madaidaicin madaidaici, babban ƙofa mai lalacewa da kewayon bayyana gaskiya.GaSe abu ne mai dacewa sosai don SHG a tsakiyar IR.DEN TECHsamar da GaSe crystal tare da babban girma na musamman da inganci.

An yi nazarin kaddarorin mitar-biyu na GaSe a cikin kewayon tsayi tsakanin 6.0 µm da 12.0 µm.An yi nasarar amfani da GaSe don ingantaccen SHG na laser CO2 (har zuwa 9% juyawa);don SHG na pulsed CO, CO2 da sinadarai DF-laser (l = 2.36 µm) radiation;jujjuyawar CO da CO2 Laser radiation a cikin kewayon bayyane;infrared bugun jini tsara ta hanyar bambancin mitar hadawa na Neodymium da infrared fenti Laser ko (F-) -tsakiyar Laser bugun jini;Ƙarfafa hasken OPG tsakanin 3.5-18 µm;Terahertz (T-haskoki) na samar da radiation.Ba shi yiwuwa a yanke lu'ulu'u don wasu kusurwoyi masu dacewa da lokaci saboda tsarin kayan aiki (cleave along (001) jirgin sama) iyakance wuraren aikace-aikace.
GaSe yana da taushi sosai da lu'ulu'u.Don samar da kristal tare da ƙayyadaddun kauri muna ɗaukar faraki mai kauri, Misali, lokacin farin ciki 1-2 mm sannan kuma fara cire Layer ta Layer ƙoƙarin kusanci zuwa kauri da aka ba da izini yayin kiyaye kyawawan shimfidar ƙasa da laushi.Koyaya, don kauri kusan 0.2-0.3 mm ko ƙasa da farantin GaSe cikin sauƙin lanƙwasa kuma muna samun saman mai lanƙwasa maimakon lebur ɗaya.
Don haka yawanci muna tsayawa a kauri na 0.2 mm don kristal 10x10 mm da aka saka a cikin dia.1 '' mariƙin tare da dia na buɗe CA.9-9.5 mm.
Wani lokaci muna karɓar umarni don lu'ulu'u na 0.1 mm, duk da haka, ba mu da garantin mai kyau flatness don haka bakin ciki lu'ulu'u.
Aikace-aikace na GaSe crystals:
• THz (T-haskoki) haɓakar radiation;
Tsawon THz: 0.1-4 TH;
• Ingantaccen SHG na CO 2 laser (har zuwa 9% tuba);
• Don SHG na pulsed CO, CO2 da sinadarai DF-laser (l = 2.36 mkm) radiation;
• Juyawa na CO da CO2 Laser radiation a cikin kewayon bayyane;infrared bugun jini tsara ta hanyar bambancin mitar hadawa na Neodymium da infrared fenti Laser ko (F-) -tsakiyar Laser bugun jini;
• Ƙarfin hasken OPG a cikin 3.5 - 18 mkm.
SHG a tsakiyar IR (CO2, CO, DF-laser sinadarai da sauransu)
jujjuyawar IR Laser radiation a cikin kewayon bayyane
Ƙarfafawa tsakanin 3-20µm
Babban Properties na GaSe lu'ulu'u:
Kewayon fayyace, µm 0.62 - 20
Ƙungiya mai lamba 6m2
Lattice sigogi a = 3.74, c = 15.89 Å
Yawan yawa, g/cm3 5.03
Mohs hardness 2
Maƙasudin ratsawa:
a 5.3 µm no= 2.7233, ne= 2.3966
a 10.6 µm no= 2.6975, ne= 2.3745
Ƙididdigar da ba ta layi ba, pm/V d22 = 54
Yi tafiya a 4.1° a 5.3µm
Ƙofar lalacewar gani, MW/cm2 28 (9.3 µm, 150 ns);0.5 (10.6 µm, a cikin yanayin CW);30 (1.064 µm, 10 ns)