## Abstract

Generally CCl_{4} is used in photothermal deflection spectroscopy as the deflecting medium. We looked for alternative deflecting liquids. This Letter reports the main features of some suitable liquids.

© 1990 Optical Society of America

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### Equations (2)

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(1)
$$V(t,z)={R}_{0}\hspace{0.17em}\text{exp}(-hz)\hspace{0.17em}\text{cos}(2\pi \nu t-hz)$$
(2)
$$\begin{array}{l}{R}_{0}=\left[\text{Tr}L\left(\frac{1}{n}\frac{dn}{dT}\right)/({\mathrm{\lambda}}_{l}+\sqrt{{\mathrm{\lambda}}_{l}{\mathrm{\lambda}}_{s}{\rho}_{s}{c}_{s}/{\rho}_{l}{c}_{l}})\right]{A}_{n}{I}_{0},\\ h=\sqrt{\pi \nu /{k}_{l}},\\ {k}_{l}={\mathrm{\lambda}}_{l}/({\rho}_{l}{c}_{l}),\end{array}$$