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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 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, 1997Photonic 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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APPLICATIONS OF PHOTONIC BAND GAP STRUCTURES
Optics and Photonics News, 1992Imagine 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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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.
Dj. Jovanović +4 more
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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.
Dj. Jovanović +4 more
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Journal of Physics: Condensed Matter, 1993
The analogy between electromagnetic wave propagation in multidimensionally periodic structures and electron wave propagation in real crystals has proven to be a very fruitful one. Initial efforts were motivated by the prospect of a photonic band gap, a frequency band in three-dimensional dielectric structures in which electromagnetic waves are ...
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The analogy between electromagnetic wave propagation in multidimensionally periodic structures and electron wave propagation in real crystals has proven to be a very fruitful one. Initial efforts were motivated by the prospect of a photonic band gap, a frequency band in three-dimensional dielectric structures in which electromagnetic waves are ...
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Photonic band gaps in anisotropic photonic crystals
Physica B: Condensed Matter, 2000Photonic band gaps can be improved in photonic crystals fabricated from anisotropic materials. In three-dimensional photonic crystals, the anisotropy can open partial band gaps in simple lattices such as face-centered-cubic, body-centered-cubic, and simple-cubic lattices of dielectric spheres in air, where no absolute band gap exists.
Li, ZY, Lin, LL, Gu, BY, Yang, GZ
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Band gap reflections in the photon band structure
Optics Communications, 1990Abstract We report experimental observation of band gap reflections in the photon band structure of an optical ring resonator. Band gap reflections are the basic phenomenon underlying Bloch oscillation. Upon magnetically simulated rocking of the ring resonator, the Poynting vector of the circulating light oscillates between the two directions of ...
R.J.C. Spreeuw +2 more
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Slanted-pore photonic band-gap materials
Physical Review E, 2005We present a detailed analysis of three-dimensional photonic band-gap materials consisting of lattices of slanted pores with n = 2 , 3, and 4 pores per unit cell. These slanted pores emanate from one or two masks consisting of a two-dimensional square or triangular lattice of holes placed on the top surface of the crystal.
Ovidiu, Toader, Sajeev, John
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Photonic Band Gap Architectures for Holographic Lithography
Physical Review Letters, 2004Using symmetry considerations, we identify three families of large photonic band-gap (PBG) architectures defined by the isointensity surfaces of four beam laser interference. For particular choices of beam intensities, directions, and polarizations, we obtain a diamondlike crystal, a novel body-centered cubic architecture, and a simple cubic structure ...
Ovidiu, Toader +2 more
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Photonic Band-Gaps in Periodic Lattices Arrays
2006 International Workshop on Laser and Fiber-Optical Networks Modeling, 2006We demonstrate that periodic lattice arrays can be formed by interferometry patterns. An advantage of this system is the possibility of change different geometries of periodic lattice arrays only varying the mirror of the experimental setup. The patterns can be recorded in a special film emulsion and we studied the photonic band-gaps for different ...
E. Alvarado-Mendez +6 more
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