Makhiristo a AgGaSe2 - Band Edges Pa 0.73 Ndi 18 µm
Mafotokozedwe Akatundu
Kukonza mkati mwa 2.5–12 µm kwapezedwa popopa ndi laser ya Ho:YLF pa 2.05 µm; komanso ntchito yofananitsa magawo osafunikira (NCPM) mkati mwa 1.9–5.5 µm popopera pa 1.4–1.55 µm. AgGaSe2 (AgGaSe) yawonetsedwa kuti ndi yothandiza pafupipafupi kuwirikiza kawiri kristalo pama radiation a infrared CO2 lasers.
Pogwira ntchito limodzi ndi ma synchronously-pumped optical parametric oscillators (SPOPOs) mu boma la femtosecond ndi picosecond, makhiristo a AgGaSe2 awonetsa kuti ndi othandiza pakusintha kosasintha kwa parametric downconversion (difference frequency generation, DGF) m'chigawo cha Mid-IR. Makristalo apakati a IR nonlinear AgGaSe2 ali ndi chimodzi mwazofunikira kwambiri (70 pm2/V2) pakati pa makhiristo ogulidwa ndi malonda, omwe ndi kasanu ndi kamodzi kuposa ofanana ndi AGS. AgGaSe2 ndiyofunikanso kuposa makhiristo ena apakati pa IR pazifukwa zingapo. AgGaSe2, mwachitsanzo, ili ndi malo ocheperako ndipo sipezeka mosavuta kuti igwiritsidwe ntchito pazinthu zinazake (mwachitsanzo, kukula ndi njira yodulira), ngakhale ili ndi malo osagwirizana kwambiri komanso owonekera.
Mapulogalamu
● Generation second harmonics pa CO ndi CO2 - lasers
● Optical parametric oscilator
● Jenereta yosiyana siyana kumadera apakati a infuraredi mpaka 17 mkm.
● Kusakaniza pafupipafupi m'chigawo chapakati cha IR
Basic Properties
| Kapangidwe ka Crystal | Tetragonal |
| Magawo a Ma cell | a=5.992 Å, c=10.886 Å |
| Melting Point | 851 ° C |
| Kuchulukana | 5.700g/cm3 |
| Mohs Kuuma | 3-3.5 |
| Mayamwidwe Coefficient | <0.05cm-1 @ 1.064 µm <0.02cm-1 @ 10.6µm |
| Relative Dielectric Constant @ 25 MHz | ε11s=10.5 11t=12.0 |
| Kuwonjezedwa kwa Matenthedwe Coefficient | |C: -8.1 x 10-6 /°C ⊥C: +19.8 x 10-6 /°C |
| Thermal Conductivity | 1.0 W/M/°C |
