Optically controlled periodic structure based on a dielectric waveguide
Abstract
The present study demonstrates the basic feasibility of an optically controlled EHF-range phase-shifter based on control of electromagnetic-wave propagation in a periodic structure formed by changing the effective permittivity of the medium as optically excited charge carriers arise in a high-resistance semiconductor. Results of calculations and experimental studies are presented regarding the phase-shifting properties of a semiconductor plate on whose surface a series of interference bands is produced optically.
- Publication:
-
Radiotekhnika i Elektronika
- Pub Date:
- November 1991
- Bibcode:
- 1991RaEl...36.2095G
- Keywords:
-
- Charge Carriers;
- Dielectric Permeability;
- Extremely High Frequencies;
- Phase Shift Circuits;
- Semiconductors (Materials);
- Diffraction Patterns;
- Optical Switching;
- Waveguides;
- Electronics and Electrical Engineering