9361988 tsve ZnGeP2 single crystals have outstanding nonlinear and optical properties that make them the most attractive candidate for optical parametric oscillators and amplifiers capable of producing tunable laser radiation in the 2.5 to 13 um region. The development of ZnGep2 crystals has been hampered by synthesis methods that are not capable of providing the required precise stoichiometry and high purity, by an anomalous absorption between 1 and 3 um, and also by al lack of data on the pressure-temperature-composition of the Zn-Ge-P system. In Phase I we propose to use a new two-temperature synthesis to prepare ZnGeP2 samples o f varying composition above and below the exact stoichimetric point and to characterized them with respect to accurate elemental composition, optical transmission, lattice constants, resistivity and photoconductivity. An important objective will be to understand the nature of the 1 to 3 um absorption and to find out how to eliminate it.

Agency
National Science Foundation (NSF)
Institute
Division of Industrial Innovation and Partnerships (IIP)
Type
Standard Grant (Standard)
Application #
9361988
Program Officer
Darryl G. Gorman
Project Start
Project End
Budget Start
1994-02-01
Budget End
1995-03-31
Support Year
Fiscal Year
1993
Total Cost
$74,955
Indirect Cost
Name
Inrad, Inc.
Department
Type
DUNS #
City
Northvale
State
NJ
Country
United States
Zip Code
07647