1. Jory, H., S. Evans, J. Shively, R. Symons, and N. Taylor, Quarterly Report No. 13, Varian Associates, Palo Alto, CA (1979).
2. Gaponov, A.V. et al., International Journal of Electronics51, 277 (1981).
3. Andronov, A.A., V.A. Flyagin, A.V. Gaponov, A.L. Gol'denberg, M.I. Petelin, V.G. Usov, and V.K. Yulpatov, Infrared Physics18, 385 (1978).
4. Arfin, B., K.R. Chu, D. Dialetis, and M.E. Read, to be published in IEEE IEDM.
5. This technique was suggested by G. Mourier of Thomson CSF.