A photoconductive, miniature terahertz source
- 15 June 1998
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 72 (24), 3100-3102
- https://doi.org/10.1063/1.121559
Abstract
We discuss the performance of a micromachined, photoconductive terahertz emitter that is fabricated on low-temperature-grown GaAs. The device is mounted on a pair of single-mode optical fibers that allows the source to be freely positionable. A strong radiation burst is emitted due to the large magnetic moment created by the electrode. The emitter’s small feature size of 300 μm by 300 μm with a photoconductive switch area of 30 μm by 30 μm suggests its application for terahertz, time-domain, near-field spectroscopy and imaging.Keywords
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