Frozen light

Article Abstract:

Electromagnetism is a mediator of all interactions i atomic physics, however Diederik Wiersma and colleagues have shown that light can be made to stand still by multiple scattering and wave interference. The discovery will lead to applications i optical data processing, laser physic and spectroscopy. Samples of the semiconductor gallium arsenide were ground to a fine powder, and in the experiment photons experienced strong interference effects, impeding diffusion.

Author: John, Sajeev

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Large-scale synthesis of a silicon photonic crystal with a complete three-dimensional bandgap near 1.5 micrometres

Article Abstract:

The description of single crystals of silicon inverse opal with a complete three-dimensional photonic bandgap centred on 1.46 micro-m is presented. These crystals were produced by growing silicon inside the voids of an opal template of close-packed silica spheres that are linked by small 'necks' arising during sintering.

Author: Blanco, Alvaro, Chomski, Emmanuel, Grabtchak, Serguei, Ibisate, Marta, John, Sajeev, Leonard, Stephen W., Lopez, Cefe, Meseguer, Francisco, Miguez, Hernan, Mondia, Jessica P., Ozin, Geoffrey A., Toader, Ovidiu, Driel, Henry M. van
Silicon crystals

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On-chip natural assembly of silicon photonic bandgap crystals

Article Abstract:

The assembly of a thin layer of colloidal spheres on a silicon substrate achieves planar, single-crystalline silicon photonic crystals with low defect densities.

Author: Vlasov, Yuril A., Bo, Xiang-Zheng, Sturm, James C., Norris, David J.
Usage, Silicon

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Subjects list: Research, Photonics
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