Spontaneous natural optical activity in disordered media
نویسندگان
چکیده
F. A. Pinheiro, V. A. Fedotov, N. Papasimakis, N. I. Zheludev 1 Instituto de Fı́sica, Universidade Federal do Rio de Janeiro, Rio de Janeiro-RJ, 21941-972, Brazil 2 Optoelectronics Research Centre and Centre for Photonic Metamaterials, University of Southampton, United Kingdom and 3 Centre for Disruptive Photonic Technologies, School of Physical and Mathematical Sciences and The Photonics Institute, Nanyang Technological University, Singapore
منابع مشابه
Wave Propagation and Scattering in Random Media and Rough Surfaces
Many natural and man-made media such as the atmosphere, oceans, geophysical media, biological media, and composite and disordered materials have random spatial inhomogeneities and vary randomly in time, and these media are called “random media. ’’ Microwaves, optical waves, and acoustic waves propagating in these media experience random fluctuations in space and time, and these fluctuations aff...
متن کاملFocusing inside Disordered Media with the Generalized Wigner-Smith Operator.
We introduce a wave front shaping protocol for focusing inside disordered media based on a generalization of the established Wigner-Smith time-delay operator. The key ingredient for our approach is the scattering (or transmission) matrix of the medium and its derivative with respect to the position of the target one aims to focus on. A specific experimental realization in the microwave regime i...
متن کاملElectronic Structure, Biological Activity, Natural Bonding Orbital (NBO) and Non-Linear Optical Properties (NLO) of Poly-Functions Thiazolo [3,2-a]Pyridine Derivatives. DFT Approach
The optimized structures of studied compounds 23-28 are non planner with the two phenyl at C3 and C9 are out of the molecular plane of thiazolo[3,2-a]pyridine as indicated from a dihedral angles of 710 and 1160 respectively, using DFT-B3LYP method with 6-311G(d,p) as basis set. The natural bonding orbital (NBO) analysis of the parent molecule 23 have been analyzed in terms of the hybridization ...
متن کاملQuantification of nanoscale density fluctuations using electron microscopy: Light-localization properties of biological cells.
We report a study of the nanoscale mass-density fluctuations of heterogeneous optical dielectric media, including nanomaterials and biological cells, by quantifying their nanoscale light-localization properties. Transmission electron microscope images of the media are used to construct corresponding effective disordered optical lattices. Light-localization properties are studied by the statisti...
متن کاملModelling Transport in Disordered Media via Diiusion on Fractals
When viewed at an appropriate scale, a disordered medium can behave as if it is strictly less than three dimensional. As fractals typically have non-integer dimensions, they are natural models for disordered media, and diiusion on fractals can be used to model transport in disordered media. In particular, such diiusion processes can be used to obtain bounds on the fundamental solution to the he...
متن کامل