Abstract
The three-terminal Gunn device first reported by Petzinger et al. has been frequency modulated by shining light either on the n-type gallium arsenide or the p-n junction of the device. Different sensitivities are achieved in those two modes of operation. While the device was oscillating in the bias-circuit mode at about 500 MHz, frequency variations linearly dependent on the intensity of the light have been observed in both modes of operation. The maximum shifts about 2 percent of the oscillating frequency, has been measured at a light intensity of 25 mW/cm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> and when light was directed only on the n-type gallium arsenide. Higher-frequency shifts have been observed in the nonlinear region. The device has demonstrated capability of detecting very short light pulses, ∼ 50 ns, generated by GaAs laser.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
