Some new band gaps and defect modes of 1D photonic crystals composed of metamaterials

Singh, Suryabhan; Pandey, Jaya; Thapa, Khem B.; Ojha, S. P.

doi:10.1016/j.ssc.2007.05.016

Cited by 28 publications

(22 citation statements)

References 22 publications

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“…The same group of authors then studied the interesting interplays between these two non-Bragg gaps [67] , by carefully adjusting the volume ratio d 1 / d 2 . Singh et al further pointed out that such zero-ε and zero-μ gaps can exist in any 1D PCs, not necessarily only in RHM/RHM superlattices, and studied the properties of defect modes in such band gaps [68] . In 2009, Reyes-Gómez et al [69] proposed a different but rather inspiring interpretation for such zero-ε and zero-μ gaps.…”

Section: Zero-ε and Zero-μ Gaps And Their Interactions With The Zero-mentioning

confidence: 99%

Physics of the zero- photonic gap: fundamentals and latest developments

et al. 2012

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A short overview is presented on the research works related to the zero-n -gap, which appears as the volume-averaged refraction index vanishes in photonic structures containing both positive and negative-index materials. After introducing the basic concept of the zero-n -gap based on both rigorous mathematics and numerical simulations, the unique properties of such a band gap are discussed, including its robustness against weak disorder, wide-incidence-angle operation and scaling invariance, which do not belong to a conventional Bragg gap. We then describe the simulation and experimental verifi cations on the zero-n -gap and its extraordinary properties in different frequency domains. After that, the unusual photonic and physical effects discovered based on the zero-ngap and their potential applications are reviewed, including beam manipulations and nonlinear effects. Before concluding this review, several interesting ideas inspired from the zero-ngap works will be introduced, including the zero-phase gaps, zero-permittivity and zero-permeability gaps, complete band gaps, and zero-refraction-index materials with Dirac-Cone dispersion.

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Section: Zero-ε and Zero-μ Gaps And Their Interactions With The Zero-mentioning

confidence: 99%

Physics of the zero- photonic gap: fundamentals and latest developments

et al. 2012

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“…Since last two decades, photonic band gap (PBG) materials, which are structured materials with periodically modulated dielectric function and showing electromagnetic band-gaps, have attracted considerable interest because of the many novel properties in respect of fundamental physics and their potential applications [1][2][3][4]. The studies of periodic structures where bandgaps are there have been done extensively in the case of electrons propagating in the periodic lattice of crystalline solids.…”

Section: Introductionmentioning

confidence: 99%

Abnormal behaviour of one-dimensional photonic crystal with defect

Kumar

Singh

Ojha

2011

Optik

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“…By introducing defects in the periodic structure of the PCs, one can attain a very narrow defect mode inside the band gap [2]. This unique feature of the photonic crystal structures dramatically alters the flow of light, and manipulations of photons within the structure can lead to many potential applications in optoelectronics [3][4][5][6][7][8]. Onedimensional PC structures have many interesting applications such as dielectric reflecting mirrors, low-loss waveguides, optical switches, filters, optical limiters etc.…”

Section: Introductionmentioning

confidence: 99%

Broadening of Omnidirectional Photonic Band Gap in Si-Based One Dimensional Photonic Crystals

Kumar¹,

Singh²,

Singh³

et al. 2010

PIER M

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Abstract-A simple design of one dimensional gradual stacked photonic crystal (GSPC) structure has been proposed. The proposed structure consists of a periodic array of alternate layers of SiO 2 and Si as the materials of low and high refractive indices respectively. The structure considered here has three stacks of periodic structures with five layers each. The lattice period of successive stack is increased by a certain multiple (say gradual constant, γ) of the lattice period of the just preceding stack. For numerical computation, the transfer matrix method (TMM) has been employed. It is found that such a structure has wider reflection bands in comparison to a conventional dielectric PC structure, and the width of the omni-directional reflection (ODR) bands can be enlarged by increasing the value of the gradual constant. Hence, a GSPC structure can be used as a broadband omnidirectional reflector, and the bandwidth of omni-directional gaps can be tuned to a desired wavelength region by choosing appropriate value of γ.

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Some new band gaps and defect modes of 1D photonic crystals composed of metamaterials

Cited by 28 publications

References 22 publications

Physics of the zero- photonic gap: fundamentals and latest developments

Physics of the zero- photonic gap: fundamentals and latest developments

Abnormal behaviour of one-dimensional photonic crystal with defect

Broadening of Omnidirectional Photonic Band Gap in Si-Based One Dimensional Photonic Crystals

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