1. Solid State Scientific Corporation, 12 Simon St., Nashua, New Hampshire 03060, USA
2. Air Force Research Laboratory, Sensors Directorate, 2241 Avionics Circle, Wright Patterson AFB, Ohio 45433, USA
3. Wyle Laboratories, Inc., 2601 Mission Point Blvd., Suite 300, Dayton, Ohio 45435, USA
4. Semiconductor Research Center, Wright State University, Dayton, Ohio 45435, USA
5. Department of Electrical and Computer Engineering, University of Alabama in Huntsville, 301 Sparkman Drive, Huntsville, Alabama 35899, USA