Propagation of terahertz pulses in random media
We describe measurements of single-cycle terahertz pulse propagation in a random medium. The unique capabilities of terahertz time-domain spectroscopy permit the characterization of a multiply scattered field with unprecedented spatial and temporal resolution. With these results, we can develop a fr...
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| Veröffentlicht in: | Philosophical transactions of the Royal Society of London. Series A: Mathematical, physical, and engineering sciences physical, and engineering sciences, 2004-02, Vol.362 (1815), p.301-314 |
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| container_issue | 1815 |
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| container_title | Philosophical transactions of the Royal Society of London. Series A: Mathematical, physical, and engineering sciences |
| container_volume | 362 |
| creator | Pearce, Jeremy Jian, Zhongping Mittleman, Daniel M. |
| description | We describe measurements of single-cycle terahertz pulse propagation in a random medium. The unique capabilities of terahertz time-domain spectroscopy permit the characterization of a multiply scattered field with unprecedented spatial and temporal resolution. With these results, we can develop a framework for understanding the statistics of broadband laser speckle. Also, the ability to extract information on the phase of the field opens up new possibilities for characterizing multiply scattered waves. We illustrate this with a simple example, which involves computing a time-windowed temporal correlation between fields measured at different spatial locations. This enables the identification of individual scattering events, and could lead to a new method for imaging in random media. |
| doi_str_mv | 10.1098/rsta.2003.1324 |
| format | Article |
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| identifier | ISSN: 1364-503X |
| ispartof | Philosophical transactions of the Royal Society of London. Series A: Mathematical, physical, and engineering sciences, 2004-02, Vol.362 (1815), p.301-314 |
| issn | 1364-503X 1471-2962 |
| language | eng |
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| source | JSTOR Mathematics & Statistics; Free Full-Text Journals in Chemistry |
| subjects | Amplitude Broadband transmission Correlations Electric fields Electric pulses Electrical phases Imaging Interferometry Multiple Scattering Photon Diffusion Photons Random Media Terahertz Imaging Waveforms |
| title | Propagation of terahertz pulses in random media |
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