Two-photon absorption inside β-BBO crystal during UV nonlinear optical conversion
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Abstract
We measured the two-photon absorption (TPA) cross sections inside (beta) -BBO crystal during UV harmonic generation. We found that the 2-photon absorption is dominating the absorption effect inside the BBO crystal during UV harmonic generation. Both 2 UV photons and 1 UV photon + 1 fundamental photon absorption cross sections are significant. Possible explanations are presented, and compared with other nonlinear otpical crystals. Thermal profiles inside the crystal as a result of the strong absorption processes are discussed through a computer program that simulates the heat dissipation process. We conclude that TPA is the significant factor in high power scaling of UV harmonic generation inside nonlinear optical crystals.
Additional Information
© 2000 Society of Photo-Optical Instrumentation Engineers (SPIE). The funding from NSF MRI program (grant ATM-9724500, sponsored by the Atmospheric Chemistry program) is gratefully acknowledged.Attached Files
Published - 221.pdf
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Identifiers
- Eprint ID
- 91448
- Resolver ID
- CaltechAUTHORS:20181204-132722184
Funding
- NSF
- ATM-9724500
Dates
- Created
-
2018-12-06Created from EPrint's datestamp field
- Updated
-
2021-11-16Created from EPrint's last_modified field
Caltech Custom Metadata
- Caltech groups
- Division of Geological and Planetary Sciences (GPS)
- Series Name
- Proceedings of SPIE
- Series Volume or Issue Number
- 3928