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Please use this identifier to cite or link to this item: http://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

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