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A broadband lithium tantalate-on-silicon nitride heterogeneous modulator for optical and terahertz communications and radar sensing. [PDF]

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Photonic band gaps in optical lattices

Physical Review A, 1995
We study photonic band gaps in a one-dimensional optical lattice of laser-cooled trapped atoms. We solve for the self-consistent equilibrium positions of the atoms, accounting for the backaction of the atoms on the trapping beams. This solution depends strongly on the sign of the trapping laser detuning.
, Deutsch   +3 more
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Photonic Band Gaps

CLEO/Europe Conference on Lasers and Electro-Optics, 1998
Photonic band gaps are ranges of frequency within which electromagnetic propagation is completely forbidden. They are present in certain materials which possess a periodicity of permittivity at the wavelength scale. Materials with these extreme properties are not known to occur naturally, and.
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Photonic band gaps and holography

Journal of Applied Physics, 1997
Photonic band gap materials are holograms with extremely high refractive index contrasts. The refractive index function can be approximated by a small number of plane waves, as a consequence of the photonic crystal periodicity. Photonic crystals can hence be constructed with a simple holographic recording of a very small number of optical plane waves ...
V. Berger   +2 more
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Photonic Band Gaps in Metamaterials

Frontiers in Optics 2013, 2013
We investigate the photonic band gap spectra (bulk and surface modes) from plasmon-polaritons excitations in a multilayer structure where one of the constituents is a metamaterial, the other being a material with positive refraction index.
U. L. Fulco   +2 more
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APPLICATIONS OF PHOTONIC BAND GAP STRUCTURES

Optics and Photonics News, 1992
Imagine a material that would exclude all electromagnetic radiation in 4π steradians over a range of frequencies. The center frequency of the exclusion gap could be determined by the experimenter to be anywhere from the optical to the microwave region. The width of the gap would be large, at least 20% of the center frequency. Radiation outside that gap
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Uncoupled photonic band gaps

Photonics and Nanostructures - Fundamentals and Applications, 2012
We theoretically investigated the symmetry properties of the modes in two-dimensional square lattice photonic crystals in order to study phenomena that would enable new frontiers in the applications of photonic crystals. Using group theory, symmetry analysis of the photonic crystals bands has been done.
Jovanovic, Dj   +4 more
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