Electrically induced two-photon transparency in semiconductor quantum wells.
We demonstrate experimentally two-photon transparency, achieved by current injection into a semiconductor quantum-well structure which exhibits two-photon emission. The two-photon induced luminescence is progressively reduced by the injected current, reaching the point of two-photon transparency-a necessary condition for semiconductor two-photon gain and lasing. These results agree with our calculations.
Hayat
Alex
A
Department of Electrical Engineering, Technion, Haifa 32000, Israel.
Nevet
Amir
A
Orenstein
Meir
M