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Generation of tunable THz radiation based on four-wave mixing in silicon waveguides
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| Hasan Pakarzadeh * 1, Sepideh Sedighi 1, Gholamreza Honarasa 1 |
| 1- Department of Physics, Shiraz University of Technology, Shiraz, Iran |
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Abstract: (168 Views) |
In this paper, the four-wave mixing in silicon waveguides is investigated for achieving suitable frequency range in the terahertz region. For this purpose, a silicon waveguide with appropriate dispersion properties is selected and by changing the input pump wavelength from the normal to the anomalous dispersion regimes around the vicinity of zero-dispersion wavelength, the generated terahertz radiation is tuned in a wide range. The results show that, via the change of the pump wavelength by 1.5 µm, a frequency shift from 38 to 309 THz can be obtained.
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| Keywords: Silicon waveguides, Four-wave mixing, Normal dispersion regime, Anomalous dispersion regime, THz radiation. |
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Full-Text [PDF 791 kb]
(55 Downloads)
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Type of Study: Research |
Subject:
Special
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