QWIP using group IV elements are of great research attention for its potential application in optical communication and in optical interconnects. The high-frequency performance of GeSn–SiGeSn QWIP has been studied considering the intersubband transition and transit time effect of electrons. The band structure of GeSn–SiGeSn QWIP and the analytical results of responsivity are also presented in this paper. © 2021, Springer Nature Singapore Pte Ltd.

BRATATI MUKHOPADHYAY

Radio Physics and Electronics

S. Ghosh

S. Dey

G. Sen

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.

Journal	Data powered by TypesetLecture Notes in Networks and Systems
Publisher	Data powered by TypesetSpringer Science and Business Media Deutschland GmbH
ISSN	23673370