Tunable Far-Infrared Radiations from Hot Electrons in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>n</mml:mi></mml:math>-Type InSb

Abstract

We report tunable far-infrared radiation from $n$-type InSb under crossed magnetic and electric fields. The emission is interpreted in terms of the transitions of hot electrons between Landau sub-bands and the radiative capture by the impurity ground state.