Summary of Activities/Interests
Research Interests: Optoelectronics device characterization, fabrication, and materials studies.
Courses: Photonics, Photonics Lab, Photonics Lab, Photonics
Ph.D., University of Illinois at Urbana-Champaign, 1991
Prof. Hall's compound semiconductor materials and device research is focused on understanding and developing new applications of native oxides for optoelectronic, electronic, and integrated optics devices. Presently, GaAs-based optoelectronic devices, optical waveguides and electronic devices are being designed, fabricated and characterized. New approaches are being explored for realizing low-loss heterostructure waveguides and photonic integrated circuits for wavelength division multiplexing (WDM) applications in optical communications. Research on the atomic-scale morphology, interface charge-trapping characteristics, and scalability of InAlP native oxides is underway in pursuit of a viable metal-oxide-(compound) semiconductor (MOS) electronic gate oxide, akin to silicon dioxide on silicon. Hall's research also includes fundamental studies of compound semiconductor native oxide properties and related processing and integration issues.