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Resonant excitation of terahertz surface magnetoplasmons by optical rectification over a rippled surface of n-type indium antimonide

Published online by Cambridge University Press:  25 January 2024

Rohit Kumar Srivastav Open the ORCID record for Rohit Kumar Srivastav [Opens in a new window]  and
A. Panwar Open the ORCID record for A. Panwar [Opens in a new window]
Rohit Kumar Srivastav
Affiliation:
Department of Physics and Materials Science and Engineering, Jaypee Institute of Information Technology, Noida, UP 201309, India
A. Panwar*
Affiliation:
Department of Physics and Materials Science and Engineering, Jaypee Institute of Information Technology, Noida, UP 201309, India
*
†Email address for correspondence: apanwar2004@gmail.com
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Abstract

We analysed the excitation of a surface magnetoplasmon wave by the mode conversion of a p-polarized laser beam over a rippled semiconductor (n-type)-free space interface. The pump surface magnetoplasmon wave exerts a ponderomotive force on the free electrons in the semiconductor, imparting a linear oscillatory velocity at the laser modulation frequency to them. This linear oscillatory velocity couples with the modulated electron density to produce a current density, which develops a resonant surface magnetoplasmon wave in the terahertz region. The amplitude of the terahertz surface magnetoplasmon wave can be tuneable with an external magnetic field and the semiconductor's temperature.

Keywords

plasma wavessolid state plasma
Type
Research Article
Information
Journal of Plasma Physics , Volume 90 , Issue 1 , June 2024 , 905900106
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Copyright
Copyright © The Author(s), 2024. Published by Cambridge University Press

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