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Photonic crystal
About: Photonic crystal is a research topic. Over the lifetime, 43424 publications have been published within this topic receiving 887083 citations.
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TL;DR: A hybrid photonic crystal fiber in which a guided mode is confined simultaneously by modified total internal reflection from an array of air holes and antiresonant reflection from a line of high-index inclusions is presented.
Abstract: We present a hybrid photonic crystal fiber in which a guided mode is confined simultaneously by modified total internal reflection from an array of air holes and antiresonant reflection from a line of high-index inclusions. Experimental results demonstrate that this fiber shares properties of both index-guided and photonic bandgap structures.
159 citations
TL;DR: In this article, a formalism to describe transitions between photon modes in a photonic crystal with a temporally and spatially varying dielectric constant is presented, in analogy to optical transitions between electronic states in metals and semiconductors.
Abstract: We present a formalism to describe transitions between photon modes in a photonic crystal with a temporally and spatially varying dielectric constant, in analogy to optical transitions between electronic states in metals and semiconductors. Resonant transitions between different photonic bands are discussed, and predictions of the theory are compared to electromagnetic simulations. We contrast the cases of electronic and photonic transitions, and explore how the photonic band structure allows opportunities for phase matching and stationary-wave generation in nonlinear optical frequency-conversion processes.
159 citations
TL;DR: In this paper, the superprism effect allows wide-angle deflection of the light beam in a photonic crystal (PC) by a slight change of the wavelength or the incident angle.
Abstract: The superprism effect allows wide-angle deflection of the light beam in a photonic crystal (PC) by a slight change of the wavelength or the incident angle. In this paper, we discuss such light deflection outside the PC, which is expected when the output end of the PC is tilted against the input end. The analysis of the dispersion surfaces indicates a deflection angle of /spl plusmn/50/spl deg/ in a two-dimensional PC composed of triangular lattice airholes by changing the incident angle by /spl plusmn/2/spl deg/ or the wavelength by /spl plusmn/2%. Light deflections inside and outside the PC are numerically demonstrated by the finite difference time-domain method. It displays not only the main output beam but also many diffracted waves, which satisfy the wavevector conservation condition. These waves are sufficiently suppressed and an almost collimated output beam is realized by a flat interface.
159 citations
159 citations
159 citations