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Published July 2008 | public
Journal Article

Spatially resolved holographic measurement of the thermal diffusivity in liquids

Abstract

Phase gratings are recorded holographically with nanosecond light pulses by the interference of two plane waves in colored liquid samples using the thermooptic effect. The samples consist of toluene and distilled water which are immiscible and have different thermal conductivities. The exponential decay of the gratings caused by the thermal conductivity is monitored by diffraction of continuous wave light, and the thermal diffusivity is determined. Scanning of the read-out beam provides spatial resolution.

Additional Information

© 2008 Springer-Verlag. Received 25 April 2008; Published 03 June 2008. Financial support of the Deutsche Telekom AG and the Deutsche Telekom Stiftung is gratefully acknowledged. We thank Dr. Dirk Apitz for valuable help and fruitful discussions.

Additional details

Created:
August 22, 2023
Modified:
October 19, 2023