Scaling Diagram for the Localization Length at a Band Edge

Fourier space imaging of light localization at a photonic band-edge located below the light cone

We observe light localization in a two-dimensional geometry, induced by residual disorder at a photonic band edge located below the light cone. The combination of a spectrally selective illumination and a grating assisted k-space imaging technique allows us to image the equifrequency surfaces associated with such a photonic band, with high accuracy and without aberrations. Thanks to this approa...

Primary relaxation processes at the band edge of SiO2.

Node-Edge Diagram Layout for Displaying Hierarchies

This paper reports the layout generation approach used in a new technique for visualizing hierarchies which provides both focus and context visualization. The hierarchy is represented as a node-edge diagram separated in two connected sub-diagrams that show the node of interest and its context.

Band Edge Localization and the Density of States for Acoustic and Electromagnetic Waves in Random Media

The propagation of sound waves and electromagnetic radiation in a background medium is strongly innuenced by the addition of random scatterers. We study random perturbations of a background medium which has a spectral gap in its permissible energy spectrum. We prove that the randomness localizes waves at energies near the band edges of the spectral gap of the background medium. The perturbation...

Finite-Length Scaling for Gallager A

We consider LDPC codes, transmission over the binary symmetric channel (BSC), and decoding using Gallager’s algorithm A. For those ensembles whose threshold is determined by the behavior of the algorithm at the beginning of the decoding process we derive a scaling law. This scaling law has the same form as the scaling law which was established for the the case of transmission over the binary er...