Abstract
High-voltage biasing is necessary for efficient generation of terahertz radiation using large-area photoconductive emitters and for electric-field-oriented charge-transfer studies. Coherent detection of terahertz pulses allows ac biasing to be the basis of modulation for lock-in detection. Biasing emitters with an ac field also removes the need for a complete conduction path. The experimental advantages of this approach along with a simple resonant method of generating the high-voltage bias applicable to higher-repetition-rate (up to a few hundred kilohertz) regeneratively amplified systems are described. (c) 2006 American Institute of Physics.
Original language | English |
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Pages (from-to) | 083111 |
Number of pages | 5 |
Journal | Review of Scientific Instruments |
Volume | 77 |
Issue number | 8 |
DOIs | |
Publication status | Published - 1 Aug 2006 |
Keywords
- submillimetre wave lasers
- optical pulse generation
- submillimetre waves
- photoconducting devices