NONLINEAR THEORY AND EXPERIMENT OF PHOTOTHERMAL RADIOMETRY
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TN219

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    Abstract:

    Based on the nonlinear effect of photothermal radiometry(PTR), a theoretical model of nonlinear heat conduction along with boundary conditions is developed, from which the representations of the second-harmonic signal of PTR are derived. Furthermore, the general features of the second-harmonic signal are discussed, and all of these are well demonstrated by the experimental results. This nonlinear theory provides a theoretical basis for the applications of the nonlinear PTR technique.

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WANG QINHUA, LI PEIZAN. NONLINEAR THEORY AND EXPERIMENT OF PHOTOTHERMAL RADIOMETRY[J]. Journal of Infrared and Millimeter Waves,1993,12(4):281~286

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