Efficient generation of 236-nm light was demonstrated by use of noncritically phase-matched second-harmonic generation in cesium lithium borate. Noncritical phase matching provided approximately 20× the nonlinear drive for second-harmonic generation than β -barium borate for 236-nm generation. The 236-nm wavelength is the fourth harmonic of a 946-nm Nd:YAG laser. Phase matching was accomplished at a crystal temperature of -15°C .
© 2003 Optical Society of America
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(140.3610) Lasers and laser optics : Lasers, ultraviolet
(190.2620) Nonlinear optics : Harmonic generation and mixing
(190.4400) Nonlinear optics : Nonlinear optics, materials
David C. Gerstenberger, Thomas M. Trautmann, and Mark S. Bowers, "Noncritically phase-matched second-harmonic generation in cesium lithium borate," Opt. Lett. 28, 1242-1244 (2003)