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Start Over Descriptor "Optics" Topic photonics Region massachusetts
3 results on '"Optics"'

1. Analytical and numerical calculations of the dispersion characteristics of two-dimensional dielectric photonic band gap structures.

Author

Samokhvalova, Ksenia, Chen, Chiping, and Qian, Bao-Liang

Subjects
*SHEAR waves, *PHOTONICS, *DISPERSION relations, *NUCLEAR physics, *OPTICS
Abstract

An exact analytical dispersion relation is derived for transverse-magnetic modes with kz=0 in a particular two-dimensional rectangular photonic band gap structure. The dispersion relation is analyzed, and the dispersion characteristics are determined. Analytical results are compared with results from the Massachusetts Institute of Technology Photonic Band Gap Structure Simulator (PBGSS) code. The error tolerance in the PBGSS code is established. Finally, the attenuations of modes with frequencies in global band gaps are computed analytically. [ABSTRACT FROM AUTHOR]

Published
2006
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2. Shock waves may enable wavelength modulation.

Author

Jones-Bey, Hassaun A.

Subjects
*PHOTONICS, *COMPUTER simulation, *OPTICS
Abstract

Reports on the transformation of a wavelength of a light beam based on computer simulation by researchers at the Massachusetts Institute of Technology in Cambridge, Massachusetts. Application of a mechanical shock to a photonic crystal; Observable phenomena from the simulation of the effects of light scattering from a shock wave in a photonic crystal; Use of finite-difference time-domain simulations of Maxwell's equations; Compression of the lattice constant of the photonic crystal.

Published
2003

3. Worcester Polytechnic gets gift from IPG Photonics.

Subjects
OPTICS, PHOTONICS, STUDENTS
Abstract

The article reports that Worcester Polytechnic Institute (WPI) in Massachusetts has received funds and equipment from fibre laser and amplifier company IPG aimed at enhancing the teaching and research capabilities of the IPG Photonics Lab. The funds reportedly helped WPI assemble a state-of-the art facility that augmented its ability to offer students preparation for photonics careers.

Published
2008

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