OPTICALLY TRIGGERABLE DOMAINS IN GaAs GUNN DIODES

Abstract
Illumination of an epitaxial Gunn diode in the anode and central active region with the 1‐nsec light pulse from a mode‐locked He–Ne laser has been observed to trigger a single domain when the diode is biased just below threshold. Cathode illumination of a diode biased above threshold has been observed to inhibit domain nucleation.