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Ultraviolet generation tunable to 0.185 microm in CsLiB6O10
1Second Research Center, Japan Defense Agency, Ikejiri 1-2-24, Setagaya, Tokyo, Japan.
Applied Optics
|February 9, 2008
Summary
Cesium Lithium Borate (CsLiB6O10) crystals enable type-1 sum frequency generation down to 0.185 micrometers. This research details improved Sellmeier equations and thermo-optic constants for this nonlinear optical material.
Area of Science:
- Nonlinear optics
- Solid-state physics
- Materials science
Background:
- Cesium Lithium Borate (CsLiB6O10) is a nonlinear optical crystal with potential applications in frequency conversion.
- Efficient generation of short wavelengths is crucial for various scientific and technological applications.
Purpose of the Study:
- To investigate the phase-matching properties of CsLiB6O10 for type-1 sum frequency generation.
- To report improved Sellmeier equations and thermo-optic constants for CsLiB6O10.
Main Methods:
- Type-1 sum frequency generation was achieved by mixing the fifth harmonic of a Nd:YAG laser (1.0642 microm) with the output of a KTP parametric oscillator.
- The KTP parametric oscillator was pumped by the second harmonic of the same Nd:YAG laser.
- Experiments were conducted at a temperature of 20.0 degrees C.
Main Results:
- CsLiB6O10 was found to be phase matchable for type-1 sum frequency generation down to a minimum wavelength of 0.185 micrometers.
- Improved Sellmeier equations for CsLiB6O10 were determined.
- Thermo-optic constants for CsLiB6O10 were reported.
Conclusions:
- CsLiB6O10 is a viable material for generating deep ultraviolet light via sum frequency generation.
- The reported Sellmeier equations and thermo-optic constants will aid in the precise design of optical systems utilizing CsLiB6O10.
- This work advances the capabilities for generating short wavelengths in nonlinear optical materials.
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