High-Speed Optoelectronics

Research on optoelectronic devices and their applications is being carried out by Professor DeFonzo and his students in the Very High Speed Integrated Devices (VHSID) Laboratory. Recent work has focused on heterostructure junction devices with picosecond and sub-picosecond switching times, optical impulse response of semiconductor lasers, optical generation of millimeter wavelength signals, and radiation properties of optoelectronic antennas. Funding for this work comes from the Rome Air Development Center, Air Force Office of Scientific Research, and the National Science Foundation.

Very High Speed Integrated Devices (VHSID) Facilities. The VHSID Laboratory is located in Room 15-A of Marcus Hall. The laboratory includes a fully outfitted optoelectronics laboratory capable of characterizing phenomena with spatial resolutions of less than 1 micron and time resolutions less than 100 femtoseconds. This facility is comprised of various solid state, dye, ion and solid state lasers, precision optical componentry, automatic control and actuators, spectrometers, high-speed electronic test instrumentation, and data acquisition systems.

pwilliam@ecs.umass.edu