Intrinsic multiple quantum well spatial light modulators

Autor: Steven R. Bowman, C. S. Kyono, W. S. Rabinovich, D. S. Katzer
Rok vydání: 1995
Předmět:
Zdroj: Applied Physics Letters. 66:1044-1046
ISSN: 1077-3118
0003-6951
DOI: 10.1063/1.113568
Popis: Large improvements are reported in the sensitivity of optically addressed multiple quantum well spatial light modulators. In prior work with these materials the quantum well region has been made semi‐insulating. It is shown that this is unnecessary and in fact detrimental to performance. By placing layers containing high trap concentrations at the ends of the structure and leaving the active quantum well layers intrinsic the speed of the device at a given illumination is improved by more than four times, diffraction efficiency is enhanced and spatial resolution is almost the same.
Databáze: OpenAIRE