Title :
Structurally embedded photoconductive silicon bowtie antenna
Author :
Liu, D. ; Charette, D. ; Bergeron, M. ; Karwacki, H. ; Adams, S. ; Lanning, B. ; Kustas, F.
Author_Institution :
Lockheed Sanders Avionics, Nashua, NH, USA
fDate :
5/1/1998 12:00:00 AM
Abstract :
We report the generation of 1.5-3.0-GHz electromagnetic radiation by a photoconductive bowtie antenna in a continuous-wave (CW) mode. The semiconductor bowtie element was made of silicon, and activated by a semiconductor laser beam delivered through a novel light waveguide system. We observed for the first time of our knowledge the VSWR resonance and a near copper-performance (<5 dB) with the optical power density as low as 1.0 W/cm/sup 2/. Further reduction of the optical power requirement is possible and will be tentatively presented with the aim of achieving the goal of less than 0.1 W/cm/sup 2/.
Keywords :
antennas; elemental semiconductors; photoconducting devices; silicon; 1.5 to 3.0 GHz; Si; VSWR resonance; continuous wave mode; electromagnetic radiation generation; light waveguide; optical power density; semiconductor element; semiconductor laser beam; structurally embedded photoconductive silicon bowtie antenna; Electromagnetic radiation; Electromagnetic waveguides; Laser beams; Laser modes; Optical waveguides; Photoconductivity; Semiconductor lasers; Semiconductor waveguides; Silicon; Waveguide lasers;
Journal_Title :
Photonics Technology Letters, IEEE
