Intersubband optical absorption in a quantum well under a tilted magnetic field

By using an appropriate coordinate transform we have calculated the intersu bband optical absorption in the single square well under a tilted magnetic field. In this study the dependence of the intersubband transitions on the magnetic field strength and the direction of the magnetic field (tilt angle ) is discussed. We show that intersubband optical absorption is sensitive t o the tilt angle. This behaviour in the intersubband optical absorption giv es a new degree of freedom in regions of interest device applications. (C) 2000 Academic Press.