Please use this identifier to cite or link to this item:
https://elib.bsu.by/handle/123456789/18002
Title: | Optical waveguide mode control by nanoslit-enhanced terahertz field |
Authors: | Novitsky, Andrey V. Zalkovskij, M. Malureanu, R. Jepsen, Peter Uhd Lavrinenko, Andrei V. |
Issue Date: | 2012 |
Citation: | September 15, 2012 / Vol. 37, No. 18 / OPTICS LETTERS |
Abstract: | The scheme is based on an optimization of the overlap between the optical waveguide mode and the THz field, with the THz field strength enhanced by the presence of a metallic nanoslit surrounding the waveguide. We find an optimum balance between the optical mode attenuation and Kerr-induced change in the propagation constant. The criterion for a π∕2-cumulative phase shift, for instance for application in a Mach–Zehnder interferometer configuration, requires 10 kV∕cm THz field, which in turn is estimated to result in a nonlinear change of the refractive index in the waveguide of 0.001. Our simulations prove that it is quite reasonable to observe the effect experimentally. |
URI: | http://elib.bsu.by/handle/123456789/18002 |
Appears in Collections: | Кафедра теоретической физики и астрофизики (статьи) |
Files in This Item:
File | Description | Size | Format | |
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OL 2012 THz.pdf | 341,55 kB | Adobe PDF | View/Open |
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