Abstract

Crystalline solids are often regarded as the best choice of material form for practical use as optical frequency converters because of the excellent long-term orientational stability and extremely high density of active components. Such materials can be combined with inexpensive diode lasers for optic parametric generation of a broad range of optical frequencies [1, 2]. We here report on our on-going efforts in the development of novel and highly efficient second-order nonlinear optical crystalline materials for frequency conversion, based on the hydrazone derivatives 5-(methylthio)-thiophenecarboxaldehyde-4-nitrophenylhydrazone (MTTNPH) and 5-nitro-2-thiophene-carboxaldehyde-4-methylphenylhydrazone (NTMPH).

© 1997 Optical Society of America