Electro-optic measurement of terahertz pulse energy distribution
| Autor: | J. G. Gallacher, JH Sun, Nuno Lemos, Gjh Seth Brussaard, ZX Huang, Dino A. Jaroszynski, Riju C. Issac, João Miguel Dias |
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| Přispěvatelé: | Coherence and Quantum Technology |
| Jazyk: | angličtina |
| Rok vydání: | 2009 |
| Předmět: |
Physics
Range (particle radiation) Radiation Time Factors Terahertz gap Optical Phenomena business.industry Terahertz radiation Far-infrared laser Physics::Optics Terahertz spectroscopy and technology Photomixing Electricity Calibration Optoelectronics business Terahertz time-domain spectroscopy Instrumentation Electromagnetic pulse |
| Zdroj: | Review of Scientific Instruments, 80(11), 113103-1/4. American Institute of Physics |
| ISSN: | 0034-6748 |
| Popis: | An accurate and direct measurement of the energy distribution of a low repetition rate terahertz electromagnetic pulse is challenging because of the lack of sensitive detectors in this spectral range. In this paper, we show how the total energy and energy density distribution of a terahertz electromagnetic pulse can be determined by directly measuring the absolute electric field amplitude and beam energy density distribution using electro-optic detection. This method has potential use as a routine method of measuring the energy density of terahertz pulses that could be applied to evaluating future high power terahertz sources, terahertz imaging, and spatially and temporarily resolved pump-probe experiments. |
| Databáze: | OpenAIRE |
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