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Two-photon absorption inside β-BBO crystal during UV nonlinear optical conversion

Wu, Sheng and Blake, Geoffrey A. and Sun, Sunny and Yu, Henry (2000) Two-photon absorption inside β-BBO crystal during UV nonlinear optical conversion. In: Nonlinear Materials, Devices, and Applications. Proceedings of SPIE. No.3928. Society of Photo-optical Instrumentation Engineers (SPIE) , Bellingham, WA, pp. 221-227. ISBN 9780819435453.

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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.

Item Type:Book Section
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Blake, Geoffrey A.0000-0003-0787-1610
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.
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Subject Keywords:two-photon absorption (TPA), BBO, thermal profiles
Series Name:Proceedings of SPIE
Issue or Number:3928
Record Number:CaltechAUTHORS:20181204-132722184
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Official Citation:Sheng Wu, Geoffrey A. Blake, Sunny Sun, Henry Yu, "Two-photon absorption inside beta-BBO crystal during UV nonlinear optical conversion," Proc. SPIE 3928, Nonlinear Materials, Devices, and Applications, (23 March 2000); doi: 10.1117/12.379921
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:91448
Deposited By: George Porter
Deposited On:06 Dec 2018 16:25
Last Modified:16 Nov 2021 03:41

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