Dispersion-based optical routing in photonic crystals

Prather, Dennis W.; Shi, Shouyuan; Pustai, David; Chen, Caihua; Venkataraman, Sriram; Sharkawy, Ahmed; Schneider, Garrett J.; Murakowski, Janusz

doi:10.1364/ol.29.000050

Cited by 162 publications

(64 citation statements)

References 10 publications

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“…It could, e.g., be applied to low and high index PhCs for sensing and optofluidics [14][15][16][17] as well as other types of adaptive optics, 18 for slow light engineering, 19 collimation, and hyperlensing [20][21][22][23] or for highly confined optical cavities. 24 The method could be extended to provide entirely new multifunctional materials, as metamaterials hold promise for.…”

mentioning

confidence: 99%

Photonic integration in k-space: Enhancing the performance of photonic crystal dye lasers

Christiansen¹,

Xiao²,

Mortensen³

2008

Applied Physics Letters

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We demonstrate how two optical functionalities can be implemented in a single photonic crystal structure by carefully engineering dispersion in several different bands at several different wavelengths. We use the concept for optically pumped dye doped hybrid polymer band edge lasers and show how a rectangular photonic crystal lattice imprinted into the surface can provide both feedback for in-plane band edge lasing and couple pump light into the device plane, thus increasing the emitted intensity and lowering the lasing threshold by more than an order of magnitude.

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mentioning

confidence: 99%

Photonic integration in k-space: Enhancing the performance of photonic crystal dye lasers

Christiansen¹,

Xiao²,

Mortensen³

2008

Applied Physics Letters

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“…In addition, self-collimation has also been demonstrated in acoustics [6,7], and exciton-polariton condensates [8], though the study of the phenomenon is more advanced in the field of optics. The propagation of nondiffractive beams was initially observed in photonic crystals (PhCs), i.e., structured materials presenting a spatial modulation of the refraction index on the wavelength scale [9][10][11][12][13][14][15]. Later, similar beam propagation effects were proposed in gain-loss modulated materials (GLMMs) [16,17].…”

Section: Introductionmentioning

confidence: 94%

Self-collimation in PT -symmetric crystals

et al. 2017

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We predict the self-collimation phenomena (or equivalently, dynamical localization) in two-dimensional PTsymmetric complex potentials, where the complex modulation is considered in the transverse, longitudinal, or simultaneously in both directions. Nondiffractive propagation is analytically predicted and further confirmed by numerical integration of a paraxial model. The parameter space is explored to identify the self-collimation regime in crystals with different PT symmetries. In addition, we also analyze how the PT -symmetric potentials determine the energy distribution between spatial modes of the self-collimated beams.

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“…Recently, a host of PC dispersion-based waveguiding phenomenaself-collimation [5], superprism effect [6], and negative refraction [7], have also gained increasing attention. Dispersion-based PC components utilizing high-index contrast square lattice of submicrometer air holes have been experimentally demonstrated on silicon-oninsulator (SOI) substrates [8,9]. Numerical simulations also suggest that lightwave can be dispersion-guided within the PC first band near the square lattice ΓM direction [10].…”

Section: Introductionmentioning

confidence: 95%

Dispersion-guided resonances in two-dimensional photonic-crystal-embedded microcavities

Tsia¹,

Poon²

2004

Opt. Express

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Abstract:We analyze dispersion-based guiding of resonances in twodimensional (2-D) photonic-crystal-embedded microcavities (PCEMs) that comprise a finite-size square lattice of submicrometer air holes embedded in a high-index contrast square microcavity. Our 2-D finite-difference timedomain simulations of waveguide side-coupled PCEMs suggest high-Q quasi-periodic multimodes within the PC first band. The Q can increase by orders of magnitude as the mode frequency approaches the band-edge frequency or as the lattice dimension increases. By mapping the Fourier transform of the mode-field distributions onto the PC dispersion surface, we show that the modes k-vectors and group velocities are pointing near the ΓM direction.

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Dispersion-based optical routing in photonic crystals

Cited by 162 publications

References 10 publications

Photonic integration in k-space: Enhancing the performance of photonic crystal dye lasers

Photonic integration in k-space: Enhancing the performance of photonic crystal dye lasers

Self-collimation in PT -symmetric crystals

Dispersion-guided resonances in two-dimensional photonic-crystal-embedded microcavities

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