Volume 24 -                   ICOP & ICPET _ INPC _ ICOFS 2018, 24 - : 193-196 | Back to browse issues page

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Generation of tunable THz radiation based on four-wave mixing in silicon waveguides
Hasan Pakarzadeh * 1, Sepideh Sedighi1 , Gholamreza Honarasa1
1- Department of Physics, Shiraz University of Technology, Shiraz, Iran
Abstract:   (1964 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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Type of Study: Research | Subject: Special
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