2-cyclooctylamino-5-nitropyridine, a new nonlinear optical crystal with orthorhombic symmetry
- 2 March 1987
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 50 (9) , 486-488
- https://doi.org/10.1063/1.98181
Abstract
A new nonlinear optical crystal 2-cyclooctylamino-5-nitropyridine (COANP) with point group symmetry mm2 has been grown by a temperature difference solution growth technique. Its linear and nonlinear optical properties have been investigated. The refractive indices na =1.702, nb =1.847, and nc =1.681 (λ=550 nm) and the nonlinear optical susceptibilities d31 and d33 (λω =1.06 μm) have been determined. Type I phase matching for Nd:YAG lasers (λ=1.06 μm) has been demonstrated for the configuration using a combination of d31 and d32 by angle tuning. A peak efficiency η=P2ω/Pω =3.6% has been observed with a 0.90-mm-thick crystal and a fundamental power Pω =560 W.Keywords
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