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Please use this identifier to cite or link to this item: http://dyuthi.cusat.ac.in/purl/2439

Title: Determination of the laser-induced damage threshold of bulk polymer samples at 1.06 mu m using the pulsed photothermal deflection technique
Authors: Rajasree, K
Radhakrishnan, P
Nampoori, V P N
Vallabhan, C P G
Keywords: pulsed photothermal deflection technique
Issue Date: 1993
Publisher: IOP
Abstract: A pulsed Nd-YAG laser beam is used to produce a transient refractive index gradient in air adjoining the plane surface of the sample material. This refractive index gradient is probed by a continuous He-Ne laser beam propagating parallel to the sample surface. The observed deflection signals produced by the probe beam exhibit drastic variations when the pump laser energy density crosses the damage threshold for the sample. The measurements are used to estimate the damage threshold for a few polymer samples. The present values are found to be in good agreement with those determined by other methods.
URI: http://dyuthi.cusat.ac.in/purl/2439
Appears in Collections:Dr.C P Girijavallabhan

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