Jewariya, Mukesh and Singh, Preetam and Moona, Girija and Shanker, Gauri and Srivatsa, K. M. K. and Baek, In Hyung and Jeong, Young Uk (2018) Investigation of dynamic optical behavior of CeO2 thin film using terahertz spectroscopy. Optical Materials, 85. pp. 295-297. ISSN 0925-3467

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Abstract

Dynamic optical behavior of CeO2 thin film has been investigated using Terahertz spectroscopy at room temperature by exciting with different amplitude pulses. The CeO2 thin films have been deposited on Si (100) substrate by RF magnetron sputtering technique. It has been observed that the optical density increases at 0.75 THz on the incident of pulse >= 100 kV/cm indicating that it is possible to induce extremely large amplitude motions in the harmonic potential of the material by direct excitation of CeO2 vibrations with intense THz pulse. This study further shows that it is possible to control the large amplitude motions in the materials using different high power THz pulses, and in turn can control the optical properties, establishing the nonlinear spectroscopy technique for such studies.

Item Type:	Article
Additional Information:	Copyright for this article belongs to M/s Elsevier.
Subjects:	Materials Science Optics
Divisions:	UNSPECIFIED
Depositing User:	Mr. Yogesh Joshi
Date Deposited:	27 Mar 2019 11:34
Last Modified:	27 Mar 2019 11:34
URI:	http://npl.csircentral.net/id/eprint/4036

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