Author/Authors :
Giugno، نويسنده , , P.V. and De Vittorio، نويسنده , , M. and Greco، نويسنده , , D. and Rinaldi، نويسنده , , R. and Cingolani، نويسنده , , R. and Lomascolo، نويسنده , , M. and Di Dio، نويسنده , , M. and Passaseo، نويسنده , , A. and Augelli، نويسنده , , V. and Ligonzo، نويسنده , , T. and Schiavulli، نويسنده , , L.، نويسنده ,
Abstract :
We have investigated the effect of a high magnetic field on the operation of an infrared electro-optic modulator constituted of In0.10Ga0.90As/GaAs quantum wells grown by metal-organic chemical vapor deposition. The magnetic field changes the working wavelength and the switching threshold of the device due to the diamagnetic blue-shift of the exciton ground-level energy and to the enhancement of the exciton oscillator strength, respectively. This is a consequence of the compression of the exciton wave function induced by the magnetic field.
