Tunable terahertz Bloch oscillations in graded-index photonic crystals

Virginie Lousse; Shanhui Fan

doi:10.1117/12.646604

1 March 2006 Tunable terahertz Bloch oscillations in graded-index photonic crystals

Virginie Lousse, Shanhui Fan

Proceedings Volume 6128, Photonic Crystal Materials and Devices IV; 612816 (2006) https://doi.org/10.1117/12.646604
Event: Integrated Optoelectronic Devices 2006, 2006, San Jose, California, United States

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.

Citation Download Citation

Virginie Lousse and Shanhui Fan "Tunable terahertz Bloch oscillations in graded-index photonic crystals", Proc. SPIE 6128, Photonic Crystal Materials and Devices IV, 612816 (1 March 2006); https://doi.org/10.1117/12.646604

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