Laser tunability from 10 to 21μm is obtained by use of an optical parametric oscillator based on a KTP crystal followed by a difference-frequency stage with a CdSe crystal. An all-solid-state picosecond Nd:YAG oscillator mode locked by a frequency-doubling nonlinear mirror is used for synchronous pumping.
© 2004 Optical Society of America
(140.3580) Lasers and laser optics : Lasers, solid-state
(140.3600) Lasers and laser optics : Lasers, tunable
(190.2620) Nonlinear optics : Harmonic generation and mixing
(190.4970) Nonlinear optics : Parametric oscillators and amplifiers
(300.6420) Spectroscopy : Spectroscopy, nonlinear
Alaa A. Mani, Zachary D. Schultz, Andrew A. Gewirth, Jeffrey O. White, Yves Caudano, Christophe Humbert, Laurent Dreesen, Paul A. Thiry, and Andre Peremans, "Picosecond laser for performance of efficient nonlinear spectroscopy from 10 to 21 μm," Opt. Lett. 29, 274-276 (2004)