Analysis of photonic band gaps in metamaterial-based one-dimensional ternary photonic crystals

Li, Zheng; Zhang, Ge; Zhang, Xueyan; Hu, Zheng-Yue; Zhao, Dan; Wu, Jianwei

doi:10.1007/s12648-018-1320-3

Cited by 16 publications

(5 citation statements)

References 28 publications

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“…Figure 4C,D shows that the TE bandgap and the TM bandgap form an absolute bandgap in the overlapping region, and as the radius of the PhCs increases, the bandgap in the blue band is red-shifted, which means moving to longer wavelengths and lower frequencies. 49,50 As can be seen from the results in Table 1, the bandgap width gradually increases with the transformation of the structure, and the bandgap of the triangular complex-period increases by 125.9% compared with that of the square single-period.…”

Section: Calculation Of Bandgap Width Of Ingan Stacking Modelmentioning

confidence: 89%

“…Therefore, we can find that the change of PhC structure can well modify the location and width of the bandgap. 35,49,50 As can be seen from the results in Table 2, the bandgap width of the triangular complexperiod is numerically 343.3% higher than that of the square single-period, demonstrating the dramatic effect of 2D arrangement on the bandgap.…”

Section: Calculation Of Bandgap Width Of Algan Etching Modelmentioning

confidence: 91%

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Enhancing light extraction efficiency of GaN LED by combining complex‐period photonic crystals with doping

Chen

Wang

2023

J Am Ceram Soc.

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The light extraction efficiency (LEE) of GaN‐based light‐emitting diodes (LEDs) was limited by intense total internal reflection and the photothermal effect. In order to solve this problem, a method to synergistically control the LEE of GaN‐based LEDs by combining the complex‐period photonic crystals (PhCs) with M (M = Al, In) material doping is proposed. The forbidden band width of two‐dimensional (2D) PhC array, three‐dimensional (3D) LED model, M doping, and electromagnetic field distribution are investigated respectively. By doping the M, the LED emission wavelength range is regulated to achieve the dual‐band emission. Furthermore, a triangular complex‐period photonic structure is introduced to establish stacked or etched PhCs models. By combining the plane wave expansion and finite difference time domain algorithm, the structural parameters of PhCs and M concentration dependent LEE are investigated, and the electromagnetic field distribution is explored also. The results show that the optimal LEEs can be achieved are 19.08% and 13.96% for blue light and ultraviolet, respectively, which are larger than that of traditional flat‐panel LED (4%). This work provides theoretical results and technical support for the design of LEDs with high luminous efficiency.

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Section: Calculation Of Bandgap Width Of Ingan Stacking Modelmentioning

confidence: 89%

Section: Calculation Of Bandgap Width Of Algan Etching Modelmentioning

confidence: 91%

Enhancing light extraction efficiency of GaN LED by combining complex‐period photonic crystals with doping

Chen

Wang

2023

J Am Ceram Soc.

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“…Since 2019, several research articles have been published on metamaterial‐based ternary PCs and with their applications in different frequency regions, including giga‐hertz (GHz), tera‐hertz (THz) and near‐infrared (IR), and low frequency waves. [ 24–30 ] Using ternary PC, Le and Lim [ 25 ] showed that programmable metamaterial is highly robust and can be employed to multi‐resonance mode as well as origami computing in the giga‐hertz (GHz) frequency region. [ 26 ] Li et al.…”

Section: Introductionmentioning

confidence: 99%

“…[ 26 ] Li et al. [ 27 ] studied a 1D ternary PC with alternatively stacked dispersive metamaterial layers including double‐negative and single‐negative materials. They analyzed the broadening features, of the bandgaps for zero‐permeability in TE polarized waves and zero‐permittivity in TM polarized waves along with a blue shifting, with increase in the incident angle.…”

Section: Introductionmentioning

confidence: 99%

Transmittance Properties of Metamaterial and Dielectric Based One‐Dimensional Ternary Periodic Structure

Pandey

Kumar

Singh

et al. 2023

Macromolecular Symposia

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In this simulation work, the optical transmission through a 1DTPS considering Si, metamaterial, and SiO2 with different thicknesses for Gigahertz device applications is studied. This discusses tunable band characteristics of the ternary periodic structure with variations in metamaterial thicknesses and incident angle, for TE as well as TM mode, and shows an omni‐directional application. It is noted that the transmission decreases in TE mode with increases in the metamaterial thickness, whereas increases in TM mode. Also, the transmittance in TE mode decreases on increasing the angle of incidence, whereas that increases for TM mode. Hence, it can be mentioned that the structure is a good transmitter of TM waves. The two PBGs increase with increase in the incident angle, for the TE mode; while in TM mode, the first PBG behaves in reverse manner and becomes narrow. For both cases of s and p waves, the PBGs exhibit blue shift with increase in the incident angle. It is to mention that a widen PBG region in the range 6–10 GHz in the first band is common in TE and TM modes at all incident angles, and hence the TPS shows the features of omni‐directional reflector. Such kinds of PCs enable better ideas in designing tunable microwave devices as well as ODR based devices like solar cells.

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“…In particular, tunable PCs [3], which have the capability of tuning the bandgap by external stimuli such as temperature, pressure, electric field, magnetic field, and many more, have attracted increasing interest because of their potential applications in optical devices. Therefore, the optical properties of the PCs containing various kinds of materials including dielectrics, metals, metamaterials, semiconductors, plasma, and superconductors (SCs) have been investigated [4][5][6][7][8][9][10][11][12][13][14][15][16][17]. When the constituent materials of PCs are superconductor, or even only a defect layer is a superconductor, superconducting photonic crystals (SC-PCs) are formed [17][18][19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Dodecanacci superconductor-metamaterial photonic quasicrystal

Nayak¹,

Aghajamali²,

Solaimani³

et al. 2020

Preprint

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Using the transfer matrix method, the present paper attempt to determine the properties of the photonic spectra of the Dodecanacci superconductor-metamaterial one-dimensional quasiperiodic multilayer. The numerical calculation is supported by using the transfer matrix method. At first, we analyze the transmission for Dodecanacci quasicrystal for different generations. After that, we analyze the effect of the thickness of the building blocks and the operating temperature. We observed that a vast number of forbidden bandgaps and transmission pecks are developed in its transmission spectra up to a certain generation number of Dodecanacci quasiperiodic sequence. If the generation number increases further, then the bandgaps become wider. According to the obtained results, depending on its generation, this structure can be used as an optical reflector or narrowband filter.

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Analysis of photonic band gaps in metamaterial-based one-dimensional ternary photonic crystals

Cited by 16 publications

References 28 publications

Enhancing light extraction efficiency of GaN LED by combining complex‐period photonic crystals with doping

Enhancing light extraction efficiency of GaN LED by combining complex‐period photonic crystals with doping

Transmittance Properties of Metamaterial and Dielectric Based One‐Dimensional Ternary Periodic Structure

Dodecanacci superconductor-metamaterial photonic quasicrystal

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