LINEAR AND NONLINEAR OPTICAL PROPERTIES OF ZnGeP2 AND CdSe
- 1 April 1971
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 18 (7), 301-304
- https://doi.org/10.1063/1.1653673
Abstract
The refractive indices of ZnGeP2, point group 4̄2m, have been determined from 0.64 to 12 μ. ZnGeP2 has positive birefringence with reasonable temperature tunability and a band gap in the visible. Its nonlinear optical coefficient d 14 for second harmonic generation(SHG) measured relative to d 14 of GaAs is 0.83 ± 15%. The birefringence of ZnGeP2 is not large enough to allow phase‐matched SHG, but nondegenerate phase‐matched three‐frequency mixing is possible and the parametric oscillator threshold power is calculated for several situations. A redetermination of the coefficient d 31 in CdSe is made and the materials compared. It is concluded that ZnGeP2 may be a most promising material for parametric generation in the 0.8– to 12‐μ region.Keywords
This publication has 14 references indexed in Scilit:
- REDETERMINATION OF THE NONLINEAR OPTICAL COEFFICIENTS OF Te AND GaAs BY COMPARISON WITH Ag3SbS3Applied Physics Letters, 1970
- Measurement of the Lowest-Order Nonlinear Susceptibility in III—V Semiconductors by Second-Harmonic Generation with a CLaserPhysical Review B, 1969
- Optical Dispersion and the Structure of SolidsPhysical Review Letters, 1969
- Preparation and Some Physical Properties of ZnGeP2Physica Status Solidi (b), 1969
- Refractive Indices of HgS (Cinnabar) between 0.62 and 11 μJournal of Applied Physics, 1967
- Refractive Index as a Function of Temperature in LiNbO3Journal of Applied Physics, 1967
- Optical Harmonic Generation in the Infrared Using a CLaserPhysical Review Letters, 1966
- NONLINEAR OPTICAL INTERACTIONS IN LiNbO3 WITHOUT DOUBLE REFRACTIONApplied Physics Letters, 1965
- OPTICAL SECOND HARMONIC GENERATION IN PIEZOELECTRIC CRYSTALSApplied Physics Letters, 1964
- Nonlinear Dielectric Polarization in Optical MediaPhysical Review B, 1962