Spontaneously Localized Photonic Modes Due to Disorder in the Dielectric Constant

Details Spontaneously Localized Photonic Modes Due to Disorder in the Dielectric Constant Spontaneously Localized Photonic Modes Due to Disorder in the Dielectric Constant

2007-12-30

arxiv.org/abs/0801.0113v4

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

6 pages

Scientific paper

We present the first experimental evidence for the existence of strongly localized photonic modes due to random two dimensional fluctuations in the dielectric constant. In one direction, the modes are trapped by ordered Bragg reflecting mirrors of a planar, one wavelength long, microcavity. In the cavity plane, they are localized by disorder, which is due to randomness in the position, composition and sizes of quantum dots located in the anti-node of the cavity. We extend the theory of disorder induced strong localization of electron states to optical modes and obtain quantitative agreement with the main experimental observations.

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