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:
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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Proceedings ArticleDOI
Stochastic characterization of amplified photons in lightwave systems with optically bistable elements
TL;DR: In this paper, an optical amplifier followed by a bistable element is statistically analyzed and the birth-death-immigration model and coupled mode theory are used to characterize the amplifier and the element, respectively.
Journal ArticleDOI
The role of Purcell effect for third harmonic generation
TL;DR: In this article, a homogenization approach was developed to describe THG by complex cavities, which works well for modelling the emission from a nanostructured surface consisting of subwavelength-size nonlinear nanoparticles.
Simulation of an all-optical photonic crystal switch using nonlinear optics and slow light for hetero structures y-junctions
Saeid Ghazanfari Shabankareh,Rahim Ghayour,Shahram Bahadori Haghighi,Sajjad Ghazanfari Shabankareh +3 more
Abstract: In this paper we shows a photonic crystal mach-zender interferometer (MZI) based on new structure by coupled-cavity waveguide using slow light to shorten the length of waveguide arms and nonlinear properties of GaAs for design of an all optical switch. So we comparison with optical switches at arm’s length that approximately is 10m. The design of y-juntion is performed using finite-difference time-domain method. finally the physical principals behind the phenomenon of slow light in photonic crystal waveguide is discussed.
Journal ArticleDOI
Light-Induced Domain Inversion in Mg-Doped near Stoichiometric Lithium Niobate Crystals
Liu Hong-De,Kong Yong-Fa,Hu Qian,WU Ri-Wen,Wang Wen-Jie,LI Xiao-Chun,Chen Shao-Lin,Liu Shi-guo,Xu Jing-Jun +8 more
TL;DR: In this paper, the influence of visible light on domain inversion in Mg-doped near stoichiometric lithium niobate crystals was investigated and it was shown that the switching electric field decreases about 70% above a threshold light intensity.
Physical design of periodic structures: From photonic crystals to phononic crystals
TL;DR: In this article, the authors investigate on designing periodic complex media for photonics and phononics structures. And they present the basic ideas of band structures, design principles, as well as selected fabrication techniques.
References
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