Larger Absolute Band Gaps in Two-Dimensional Photonic Crystals Fabricated by a Three-Order-Effect Method

Li, Hai; Yang, Xiangbo

doi:10.2528/pier10072505

Cited by 19 publications

(7 citation statements)

References 14 publications

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“…Photonic crystals are a class of periodically modulated dielectric materials, which can be applied to manipulate light at the wavelength scale [1][2][3][4][5][6][7][8][9]. More recently, negative refraction [10][11][12] in PhCs has attracted much attention for their potential application in many fields, such as focusing imaging [13][14][15], microcavity [16] and beam splitting [17][18][19][20][21][22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Multi-Refraction With Same Polarization State in Two Dimensional Triangular Photonic Crystals

Dong¹,

Zhou²,

Yang³

et al. 2012

PIER

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Abstract-Multi-refraction effects with one polarization in a twodimensional triangular photonic crystal (PhC) were systematically studied by theoretical analysis and numerical simulation. The more complicated refraction behaviors can be excited in the higher band regions based on the intricate undulation of one band or the overlap of different bands. A novel non-handedness effect is proposed for the first time with group velocity perpendicular to phase velocity. Furthermore, triple refraction phenomena and special collimation effects of symmetrical positive-negative refraction with the loose incident conditions have been found in different band regions of this PhC. These unique features will provide us with more understanding of electromagnetic wave propagation in PhCs and give important guideline for the design of new type optical devices.

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Section: Introductionmentioning

confidence: 99%

Multi-Refraction With Same Polarization State in Two Dimensional Triangular Photonic Crystals

Dong¹,

Zhou²,

Yang³

et al. 2012

PIER

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“…In general, PhCs can be used in three ways in order to improve light absorbing efficiency. The first approach is the design of reflecting a range of wavelengths with low losses or the inhibition and redistribution of light spectrum via the significant feature of PhCs, the photonic band-gaps (PBGs) [11][12][13]. This option generally leads to the requirement of a sufficiently large refractive index contrast to open a full PBG.…”

Section: Introductionmentioning

confidence: 99%

Optical Absorption Enhancement in Solar Cells via 3d Photonic Crystal Structures

Chen¹,

Li²,

Chen³

2011

PIER M

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Abstract-Light concentrating structures with three-dimensional photonic crystals (3D PhCs) for solar cell applications are investigated via simulation. The 3D opal PhCs are suggested as an intermediate layer in the concentrator system for solar cells. It is found that the light absorption is significantly enhanced due to the adding of diffractive effects of PhCs to the concentrator. Three types of PhCs are considered in four scenarios to verify the absorption enhancement by such a light concentrating structure. Our calculations show that the face-centered cubic PhC can create an absorbing efficiency superior to the others under a specified lattice orientation pointing to the sun, which results in an enhancement factor of 1.56 in absorption for the 500-1100 nm spectral range.

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“…PBGs are of technical use in designing the Bragg reflectors (BRs) that play an important role in solid state laser systems [1][2][3]. Engineering PBGs to realize other possible photonic devices, including resonators, polarizer, filters, beam splitter, and waveguides are also available [4][5][6][7][8][9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Complex Photonic Band Structures in a Photonic Crystal Containing Lossy Semiconductor Insb

Chang¹,

Wu²,

Wu³

2012

PIER

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Abstract-In this work, complex photonic band structure (CPBS) in a semiconductor-dielectric photonic crystal (SDPC) operating at terahertz frequencies is theoretically investigated. The SDPC is air/(S/D) N /air where the dielectric layer D is SiO 2 , the semiconductor layer S is an intrinsic semiconductor InSb, and N is the number of periods. Using the experimental data for the strongly temperaturedependent plasma frequency and damping frequency for InSb, we calculate the CPBS for the infinite SDPC at distinct operating temperatures. The CPBS is then compared with the calculated transmittance, reflectance, and absorptance as well in the finite SDPC. Based on the calculated CPBS, the role played by the loss factor (damping frequency), in InSb is revealed. Additionally, from the calculated transmittance spectra, we further investigate the cutoff frequency for the SDPC. The dependences of cutoff frequency on the number of periods and the filling factor of semiconductor layer are numerically illustrated.

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Larger Absolute Band Gaps in Two-Dimensional Photonic Crystals Fabricated by a Three-Order-Effect Method

Cited by 19 publications

References 14 publications

Multi-Refraction With Same Polarization State in Two Dimensional Triangular Photonic Crystals

Multi-Refraction With Same Polarization State in Two Dimensional Triangular Photonic Crystals

Optical Absorption Enhancement in Solar Cells via 3d Photonic Crystal Structures

Complex Photonic Band Structures in a Photonic Crystal Containing Lossy Semiconductor Insb

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