Thermal diffusivity measurements in organic liquids using transient thermal lens calorimetry

C. V. Bindhu; S. S. Harilal; V. P. N. Nampoori; C. P. G. Vallabhan

doi:10.1117/1.601825

1 October 1998 Thermal diffusivity measurements in organic liquids using transient thermal lens calorimetry

C. V. Bindhu, S. S. Harilal, V. P. N. Nampoori, C. P. G. Vallabhan

Author Affiliations +

Optical Engineering, Vol. 37, Issue 10, (October 1998). https://doi.org/10.1117/1.601825

Thermal diffusivity measurements are carried out in certain organic liquids using the pulsed dual beam thermal lens technique. The 532 nm pulses from a frequency doubled Q-switched Nd:YAG laser are used as the heating source and an intensity stabilized He-Ne laser serves as the probe beam. Experimental determination of the characteristic time constant of the transient thermal lens signal is verified theoretically. Measured thermal diffusivity values are in excellent agreement with literature values.

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C. V. Bindhu, S. S. Harilal, V. P. N. Nampoori, and C. P. G. Vallabhan "Thermal diffusivity measurements in organic liquids using transient thermal lens calorimetry," Optical Engineering 37(10), (1 October 1998). https://doi.org/10.1117/1.601825

Published: 1 October 1998

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