Polley, Debanjan ; Ganguly, Arnab ; Barman, Anjan ; Mitra, Rajib Kumar (2013) Polarizing effect of aligned nanoparticles in terahertz frequency region Optics Letters, 38 (15). p. 2754. ISSN 0146-9592
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Official URL: http://doi.org/10.1364/OL.38.002754
Related URL: http://dx.doi.org/10.1364/OL.38.002754
Abstract
We report the polarizing behavior of aligned Ni nanoparticles (NPs) having average diameter of 165±15 nm in ∼210 μm thick polyvinyl alcohol (PVA) matrix in the frequency range of 0.2–1.6 THz. The NPs have been prepared via a wet chemical route and then aligned in PVA film by using an external magnetic field. When the polarization of THz electric field is parallel to the NPs alignment direction, a strong THz absorption is observed whereas a minimum THz absorption is noticed for the corresponding perpendicular configuration. Degree of polarization is calculated to be 0.9±0.08. Considering the good polarizing performance, ease of preparation, durability, and low maintenance, this aligned NP system is a perfect candidate to emerge as a potential THz polarizer.
Item Type: | Article |
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Source: | Copyright of this article belongs to Optical Society of America. |
ID Code: | 116229 |
Deposited On: | 08 Apr 2021 04:15 |
Last Modified: | 08 Apr 2021 04:15 |
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