Efficient difference-frequency generation of 7- 20-mum radiation in CdGeAs(2).
Continuously tunable 6.8-20.1-mum mid-infrared radiation has been achieved by the use of frequency generation in CdGeAs(2). The signal and the idler output of an Er-laser-pumped ZnGeP(2) optical parametric generator was used as the pump. The maximum external conversion efficiency reached 20%.
Vodopyanov
K L
KL
Schunemann
P G
PG