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2010-06-22

Analysis of Terahertz-Induced Optical Phase Modulation in a Nonlinear Dielectric Slab

By Zahra Ghattan, Seyed Amin Izadi, and Mahmoud Shahabadi
Progress In Electromagnetics Research M, Vol. 13, 41-51, 2010
doi:10.2528/PIERM10041407

Abstract

Frequency shift of the spectrum of an incident optical pulse by an intense THz pulse inducing cross-phase modulation (XPM) in a nonlinear dielectric slab is analyzed. The effect is predicted with a high degree of accuracy using the well-known transmission line matrix (TLM) technique. In this research, to model the THzinduced temporal and spatial variation of the dielectric permittivity of the nonlinear dielectric slab, the transmission lines of the TLM method are loaded with open shunt stubs. The parameters of the stubs are modified in accordance with the refractive index variation of the dielectric slab, here ZnTe, induced by the strong THz pulse. The obtained numerical results are verified with a recently reported experimental work.

Citation


Zahra Ghattan, Seyed Amin Izadi, and Mahmoud Shahabadi, "Analysis of Terahertz-Induced Optical Phase Modulation in a Nonlinear Dielectric Slab," Progress In Electromagnetics Research M, Vol. 13, 41-51, 2010.
doi:10.2528/PIERM10041407
http://www.jpier.org/PIERM/pier.php?paper=10041407

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