Title :
Optoelectronic periodic structure for MM-wave control in waveguides
Author :
Hindy, Moataza A.
Abstract :
A detailed analysis of the microwave reflection pattern due to periodically photo excited layers of semiconductor material in a waveguide is presented. Different photoconductivity profiles due to different excitation conditions with different materials were tested. Carrier diffusion in the direction of propagation can strongly affect the passband filtering response, especially the efficiency and the bandwidth. These configurations can be used as a light-induced tunable filter
Keywords :
carrier lifetime; carrier mobility; laser beam applications; laser beam effects; microwave filters; optoelectronic devices; passive filters; photoconductivity; waveguide components; MM-wave control; bandwidth; carrier diffusion; efficiency; excitation conditions; high power laser; low power laser; microwave reflection pattern; passband filtering response; periodically photo excited layers; photoconductivity profiles; semiconductor material; waveguides; Band pass filters; Materials testing; Microwave propagation; Optical reflection; Pattern analysis; Periodic structures; Photoconducting materials; Photoconductivity; Semiconductor materials; Semiconductor waveguides;
Conference_Titel :
Circuits and Systems, 1992., Proceedings of the 35th Midwest Symposium on
Conference_Location :
Washington, DC
Print_ISBN :
0-7803-0510-8
DOI :
10.1109/MWSCAS.1992.271090
