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Proceedings Paper

Tunable terahertz Bloch oscillations in graded-index photonic crystals
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Paper Abstract

We report simulations showing tunable terahertz oscillations of the electromagnetic field provided by the Bloch oscillations of a short photonic wave packet in a tilted band structure. The structure consists in a finite one-dimensional photonic crystal inhomogeneously chirped by a slowly-varying refractive index gradient. Tunability is obtained by relocating the Bloch oscillations center in regions characterized by different local band structure gradients. With reasonable refractive indexes, this mechanism may allow the generation of signals which cover a wide continuous part of the electromagnetic terahertz range, when used in combination of appropriate detection schemes.

Paper Details

Date Published: 1 March 2006
PDF: 8 pages
Proc. SPIE 6128, Photonic Crystal Materials and Devices IV, 612816 (1 March 2006); doi: 10.1117/12.646604
Show Author Affiliations
Virginie Lousse, Univ. Notre-Dame de la Paix (Belgium)
Stanford Univ. (United States)
Shanhui Fan, Stanford Univ. (United States)

Published in SPIE Proceedings Vol. 6128:
Photonic Crystal Materials and Devices IV
Ali Adibi; Shawn-Yu Lin; Axel Scherer, Editor(s)

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