Comparison of photoexcited p-InAs THz radiation source with conventional thermal radiation sources
Journal Article
·
· Journal of Applied Physics
- Australian Nuclear Science and Technology Organisation, Lucas Heights, NSW 2234 (Australia)
- Department of Electrical and Computer Engineering, Rice University, Houston, Texas 77005 (United States)
- Institute for Superconducting and Electronic Materials, University of Wollongong, Wollongong, NSW 2522 (Australia)
P-type InAs excited by ultrashort optical pulses has been shown to be a strong emitter of terahertz radiation. In a direct comparison between a p-InAs emitter and conventional thermal radiation sources, we demonstrate that under typical excitation conditions p-InAs produces more radiation below 1.2 THz than a globar. By treating the globar as a blackbody emitter we calibrate a silicon bolometer which is used to determine the power of the p-InAs emitter. The emitted terahertz power was found to be 98{+-}10 nW in this experiment.
- OSTI ID:
- 21190077
- Journal Information:
- Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 6 Vol. 105; ISSN JAPIAU; ISSN 0021-8979
- Country of Publication:
- United States
- Language:
- English
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