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Infra‐Red Modulation Using Hot‐Electron Faraday Effect in n‐InSb
Author(s) -
Chattopadhyay D.,
Nag B. R.
Publication year - 1970
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.19700400230
Subject(s) - faraday effect , modulation (music) , faraday cage , electric field , momentum (technical analysis) , effective mass (spring–mass system) , physics , condensed matter physics , electron , relaxation (psychology) , magneto optic effect , magnetic field , faraday rotator , materials science , quantum mechanics , psychology , social psychology , finance , acoustics , economics
The effect of a large static electric field on the infra‐red modulation due to free‐carrier Faraday rotation in n‐InSb has been studied theoretically, taking into account the variation of the effective mass due to carrier heating. The theoretical results are of the same order of magnitude as the experimental ones, but no exact agreement was found. It is further shown, that the contribution of the change in the momentum relaxation time to the alteration of the Faraday rotation is insignificant compared to that arising from the change of effective mass.