An approximate theory has been developed for third harmonic generation in GaAs under the application of a large high frequency sinusoidal electric field. The ratio of the third harmonic to the fundamental frequency currents is found to be 0-22 and 015 at fundamental frequencies of 100 GHZ and 450 GHZ respectively, for a field amplitude of 6-7 kv/&nbsp;cm. © 1969, Walter de Gruyter. All rights reserved.

DIPANKAR CHATTOPADHYAY

Polymer Science and Technology

B R NAG

University of Calcutta (informally known as Calcutta University or CU) is a collegiate public state university located in Kolkata, West Bengal, India.&nbsp;Within India it is recognized as a &quot;Five-Star University&quot; and accredited &quot;A&quot; Grade by National Assessment and Accreditation Council.

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The University of Calcutta has secured the Fifth position among the Universities of India in the prestigious &quot;Indian University Ranking 2019&quot; list, released by the NIRF of the Ministry of Human Resource Development, Government of India.

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It was established on 24 January 1857, and was one of the first institutions in Asia to be established as a multidisciplinary and Western-style university. Its alumni and faculty include several heads of state, heads of government, social reformers, prominent artists, only academy award winner and Dirac medal winner in India, many Fellows of the Royal Society and five Nobel laureates as of 2019 which is highest in South Asia.

University Of Calcutta

Harmonic generation using the non-linearity in the hot carrier characteristics of GaAs

International Journal of Electronics

Third harmonic components in the reflected and transmitted waves produced by non-linear interaction of a plane-polarized electromagnetic wave with a semiconducting sample of finite thickness have been studied. It is found that the sample thickness should be a little less than half the skin depth at the fundamental frequency for optimum harmonic output.

Journal	International Journal of Electronics
Publisher	-
ISSN	0020-7217