Sponsor: Buenaventura Section Chapter,PHO36
Buenaventura Section Chapter,AES10
Buenaventura Section Jt. Chapter,CAS04/ED15
Buenaventura Section Chapter,C16
Speaker: David Rhiger

Date: 23 Apr 2026
Time: 12:00 PM PDT to 01:00 PM PDT
Cost:
Location:
Reservations: IEEE
Summary:
A superlattice can be formed by alternating thin layers of different semiconductor materials. The result is an artificial semiconductor whose properties differ from those of the constituents. The advantage is that the bandgap energy and the lattice parameter can be varied independently, providing a wide parameter space for bandgap engineering. The presentation will show how the superlattice can grow on available substrates, such as GaSb, and how it functions as a detector of infrared light.

Bio: David Rhiger Ph.D. is employed at Raytheon Vision Systems in Goleta. His specialty is the physics of compound semiconductor materials and devices for application to infrared detectors, with more than 40 years of experience. He is an Engineer Fellow at Raytheon and a Fellow of the Military Sensing Symposium. He is the author of several patents and numerous scientific publications. He has a B.S. in Physics from Stanford University and a Ph.D. in Physics from University of Washington in Seattle.