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| Naji, M. |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Casati, R. |
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| Kočí, Jan | Prague |
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| Azam, Siraj |
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| Ali, M. A. |
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| Azevedo, Nuno Monteiro |
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Kee, Chul-Sik
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (10/10 displayed)
- 2019Significant THz absorption in CH3NH2 molecular defect-incorporated organic-inorganic hybrid perovskite thin filmcitations
- 2018Strong polarization-dependent terahertz modulation of aligned Ag nanowires on Si substratecitations
- 2015Subwavelength localization and toroidal dipole moment of spoof surface plasmon polaritonscitations
- 2015Evolution of the surface state in Bi2Se2Te thin films during phase transition citations
- 2014Fano resonance of self-collimated beams in two-dimensional photonic crystalscitations
- 2011Frequency selective heterojunction metal-insulator-metal mirror for surface plasmonscitations
- 2006Fabrication of polymer photonic crystal slabs using nanoimprint lithographycitations
- 2005Nanopatterned polymer thin filmscitations
- 2005Photonic band gaps and defect modes of polymer photonic crystal slabscitations
- 2005Line-defect-induced bending and splitting of self-collimated beams in two-dimensional photonic crystalscitations
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article
Strong polarization-dependent terahertz modulation of aligned Ag nanowires on Si substrate
Abstract
Optically tunable, strong polarization-dependent transmission of terahertz pulses through aligned Ag nanowires on a Si substrate is demonstrated. Terahertz pulses primarily pass through the Ag nanowires and the transmittance is weakly dependent on the angle between the direction of polarization of the terahertz pulse and the direction of nanowire alignment. However, the transmission of a terahertz pulse through optically excited materials strongly depends on the polarization direction. The extinction ratio increases as the power of the pumping laser increases. The enhanced polarization dependency is explained by the redistribution of photocarriers, which accelerates the sintering effect along the direction of alignment of the Ag nanowires. The photocarrier redistribution effect is examined by the enhancement of terahertz emission from the sample. Oblique metal nanowires on Si could be utilized for designing optically tunable terahertz polarization modulators. (C) 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement