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Pakarzadeh H, Sedighi S, Honarasa G. Generation of tunable THz radiation based on four-wave mixing in silicon waveguides. ICOP & ICPET _ INPC _ ICOFS 2018; 24 :193-196
URL: http://opsi.ir/article-1-1613-en.html
URL: http://opsi.ir/article-1-1613-en.html
1- Department of Physics, Shiraz University of Technology, Shiraz, Iran
Abstract: (2567 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.
Keywords: Silicon waveguides, Four-wave mixing, Normal dispersion regime, Anomalous dispersion regime, THz radiation.
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