Negative Refraction and Left-Handed Electromagnetism in Microwave Photonic Crystals

Parimi, Patanjali V.; Lu, W. T.; Vodo, P.; Sokoloff, J. B.; Derov, John S.; Sridhar, Srinivas

doi:10.1103/physrevlett.92.127401

Cited by 323 publications

(183 citation statements)

References 17 publications

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“…Photonic crystals, an optical analogue of ordinary crystals, offer an additional route to design energy dispersion relations with characteristic Dirac points [48]. In such crystals, the unusual transmission properties near a Dirac point [23][24][25] were predicted and observed experimentally.…”

Section: Confining Photonsmentioning

confidence: 99%

Artificial honeycomb lattices for electrons, atoms and photons

et al. 2013

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Artificial honeycomb lattices offer a tunable platform to study massless Dirac quasiparticles and their topological and correlated phases. Here we review recent progress in the design and fabrication of such synthetic structures focusing on nanopatterning of two-dimensional electron gases in semiconductors, molecule-by-molecule assembly by scanning probe methods, and optical trapping of ultracold atoms in crystals of light. We also discuss photonic crystals with Dirac cone dispersion and topologically protected edge states. We emphasize how the interplay between single-particle band structure engineering and cooperative effects leads to spectacular manifestations in tunneling and optical spectroscopies.

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Section: Confining Photonsmentioning

confidence: 99%

Artificial honeycomb lattices for electrons, atoms and photons

et al. 2013

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“…Although some of these concepts, both for crystalline and disordered materials, can be tested on macroscopic length scales using microwaves [21] or ultrasound [22], most of the fundamental interest and possible technological applications concentrate on the infrared or visible range of the optical * Corresponding author: frank.scheffold@unifr.ch spectrum [2,7,23,24]. This means that typical structural length scales of the materials need to be scaled down to the submicron range.…”

Section: Introductionmentioning

confidence: 99%

Direct laser writing of three-dimensional network structures as templates for disordered photonic materials

2013

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In the present article we substantially expand on our recent study about the fabrication of mesoscale polymeric templates of disordered photonic network materials [Haberko and Scheffold, Opt. Expr. 21, 1057 (2013)]. We present a detailed analysis and discussion of important technical aspects related to the fabrication and characterization of these fascinating materials. Compared to our initial report we were able to reduce the typical structural length scale of the seed pattern from a = 3.3 μm to a = 2 μm, bringing it closer to the technologically relevant fiber-optic communications wavelength range around λ ∼ 1.5 μm. We have employed scanning electron microscopy coupled with focused ion beam cutting to look inside the bulk of the samples of different heights. Moreover, we demonstrate the use of laser scanning confocal microscopy to assess the real space structure of the samples fabricated by direct laser writing. We address in detail questions about scalability, finite size effects, and geometrical distortions. We also study the effect of the lithographic voxel shape, that is, the ellipsoidal shape of the laser pen used in the fabrication process. To this end we employ detailed numerical modeling of the scattering function using a discrete dipole approximation scheme.

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“…wangxb@bc.edu Sept. 19,2004 Left-handed materials (LHM), initially proposed by Veselago 36 years ago [1], have recently attracted strong research interests, since their unusual properties can now be realized in the nanoscopic materials [2][3][4][5][6][7][8][9][10][11][12][13]29]. For electromagnetic waves incident from air on a slab of LHM, the angle of refraction is negative, which implies via Snell's Law, a negative refractive index.…”

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confidence: 99%

Effects of disorder on subwavelength lensing in two-dimensional photonic crystal slabs

Wang

Kempa

2005

Phys. Rev. B

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We demonstrate that a hexagonal two dimensional photonic crystal can act as an isotropic medium with an effective refractive index n , therefore capable of unrestricted superlensing. We study the superlensing by calculating the photonic band structure, and the propagation maps of the electromagnetic waves through slabs of the photonic crystal. We investigate the surface, and the crystal disorder effects on the superlensing, by analyzing the light intensity profile at the image of a line source.

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Negative Refraction and Left-Handed Electromagnetism in Microwave Photonic Crystals

Cited by 323 publications

References 17 publications

Artificial honeycomb lattices for electrons, atoms and photons

Artificial honeycomb lattices for electrons, atoms and photons

Direct laser writing of three-dimensional network structures as templates for disordered photonic materials

Effects of disorder on subwavelength lensing in two-dimensional photonic crystal slabs

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