Thermal characteristics of second harmonic generation by phase matched calorimetry

We analyze a solution of the heat equation for second harmonic generation (SHG) with a focused Gaussian beam and simulate the temperature rise in SHG materials as a function of the second harmonic power and the focusing conditions. We also propose a quantitative value of the heat removal performance...

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Published in:Optics express 2014-07, Vol.22 (15), p.18268-18277
Main Authors: Lim, Hwan Hong, Kurimura, Sunao, Noguchi, Keisuke, Shoji, Ichiro
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Language:English
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creator Lim, Hwan Hong
Kurimura, Sunao
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Shoji, Ichiro
description We analyze a solution of the heat equation for second harmonic generation (SHG) with a focused Gaussian beam and simulate the temperature rise in SHG materials as a function of the second harmonic power and the focusing conditions. We also propose a quantitative value of the heat removal performance of SHG devices, referred to as the effective heat capacity Cα in phase matched calorimetry. We demonstrate the inverse relation between Cα and the focusing parameter ξ, and propose the universal quantity of the product of Cα and ξ for characterizing the thermal property of SHG devices. Finally, we discuss the strategy to manage thermal dephasing in SHG using the results from simulations.
doi_str_mv 10.1364/OE.22.018268
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title Thermal characteristics of second harmonic generation by phase matched calorimetry
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