Thermal diffusivity measurements in organic liquids using transient thermal lens calorimetry

被引：79

作者：

Bindhu, CV ^{[1
]}

Harilal, SS ^{[1
]}

Nampoori, VPN ^{[1
]}

Vallabhan, CPG ^{[1
]}

机构：

[1] Cochin Univ Sci & Technol, Int Sch Photon, Laser Div, Cochin 682022, Kerala, India

来源：

OPTICAL ENGINEERING | 1998年 / 37卷 / 10期

关键词：

photothermal phenomena; thermal lensing; thermal diffusivity;

D O I：

10.1117/1.601825

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

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. (C) 1998 Society of Photo-Optical instrumentation Engineers. [S0091-3286(98)00510-8].

引用

页码：2791 / 2794

页数：4