Journal ArticleDOI
Enhancement of nonlinear effects using photonic crystals.
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TLDR
If all-optical devices using photonic crystal designs promise to be smaller than the wavelength of light, and to operate with bandwidths that are very difficult to achieve electronically, operation at single-photon power levels could be feasible.Abstract:Â
The quest for all-optical signal processing is generally deemed to be impractical because optical nonlinearities are usually weak. The emerging field of nonlinear photonic crystals seems destined to change this view dramatically. Theoretical considerations show that all-optical devices using photonic crystal designs promise to be smaller than the wavelength of light, and to operate with bandwidths that are very difficult to achieve electronically. When created in commonly used materials, these devices could operate at powers of only a few milliwatts. Moreover, if these designs are combined with materials and systems that support electromagnetically induced transparency, operation at single-photon power levels could be feasible.read more
Citations
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DissertationDOI
Nonlinear Effects in Granular Crystals with Broken Periodicity
TL;DR: In this paper, the authors study the mechanical response and dynamics in granular crystals, in which the approximation of linearity and infinite size break down, and present two new energy harvesting systems based on their experience with instabilities in weakly nonlinear systems.
Journal ArticleDOI
Optical fuse effect in a tunable liquid crystal waveguide with a Cr grating coupler
TL;DR: In this paper, spontaneous optical switch in a liquid crystal (LC) waveguide with a Cr grating coupler was investigated in the near infrared and the sensitivity and response speed can be controlled by adjusting the temperature with respect to the phase transition of LC.
Journal ArticleDOI
Multiple slow light bands in photonic crystal coupled resonator optical waveguides constructed with a portion of photonic quasicrystals
TL;DR: In this paper, Coupled resonator optical waveguides (CROWs) in complex two-dimensional photonic crystals (PCs) constructed with a portion of 12-fold photonic quasicrystals (PQs) are proposed.
Journal ArticleDOI
Resonant light scattering and higher harmonic generation by periodic subwavelength arrays
TL;DR: In this article, the theory of coupled resonances is used to prove that there exist bound states of light in the radiation continuum (resonances with the vanishing width) in periodic arrays, which can be used to enhance and control nonlinear optical effects in subwavelength periodic arrays.
Governing the speed of a light signal in optical fibers
TL;DR: In this article, a broadband spectral window was passively obtained in between two Brillouin gain/loss resonances by simply appending two segments of fibers showing different frequency shifts, which led to a spectral hole in the center of the broadband absorption and opened a transparent window while the sharp change in the refractive index was preserved.
References
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Journal ArticleDOI
Inhibited Spontaneous Emission in Solid-State Physics and Electronics
TL;DR: If a three-dimensionally periodic dielectric structure has an electromagnetic band gap which overlaps the electronic band edge, then spontaneous emission can be rigorously forbidden.
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Computational Electrodynamics: The Finite-Difference Time-Domain Method
TL;DR: This paper presents background history of space-grid time-domain techniques for Maxwell's equations scaling to very large problem sizes defense applications dual-use electromagnetics technology, and the proposed three-dimensional Yee algorithm for solving these equations.
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Strong localization of photons in certain disordered dielectric superlattices
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Photonic Crystals: Molding the Flow of Light
TL;DR: In this paper, the authors developed the theoretical tools of photonics using principles of linear algebra and symmetry, emphasizing analogies with traditional solid-state physics and quantum theory, and investigated the unique phenomena that take place within photonic crystals at defect sites and surfaces, from one to three dimensions.
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Fundamentals of Photonics
TL;DR: The Fundamentals of Photonics, Third Edition as discussed by the authors is a self-contained and up-to-date introductory-level textbook that thoroughly surveys this rapidly expanding area of engineering and applied physics.