Results 1 to 10 of about 10,259 (262)
Titania Photonic Crystals with Precise Photonic Band Gap Position via Anodizing with Voltage versus Optical Path Length Modulation [PDF]
Nanomaterials, 2019 Photonic crystals based on titanium oxide are promising for optoelectronic applications, for example as components of solar cells and photodetectors. These materials attract great research attention because of the high refractive index of TiO2.
Georgy A. Ermolaev +3 more
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Hydrogen production by tuning the photonic band gap with the electronic band gap of TiO₂. [PDF]
Sci Rep, 2013 Tuning the photonic band gap (PBG) to the electronic band gap (EBG) of Au/TiO(2) catalysts resulted in considerable enhancement of the photocatalytic water splitting to hydrogen under direct sunlight. Au/TiO(2) (PBG-357 nm) photocatalyst exhibited superior photocatalytic performance under both UV and sunlight compared to the Au/TiO(2) (PBG-585 nm ...
Waterhouse GI +7 more
europepmc +4 more sources
Foam as a self-assembling amorphous photonic band gap material [PDF]
Proceedings of the National Academy of Sciences of the United States of America, 2019 Pavel Yazhgur, Joshua Ricouvier
exaly +2 more sources
Photonic Band Gap Materials [PDF]
Proceedings of European Meeting on Lasers and Electro-Optics CLEOE-96, 1996 An overview of the theoretical and experimental efforts in obtaining a photonic band gap, a frequency band in three-dimensional dielectric structures in which electromagnetic waves are forbidden, is presented.
R. Biswas +4 more
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Results in Physics, 2023 Traditionally, in the application of photonic crystals, defect modes are mostly introduced in the photonic band gap to realize high-performance waveguides, and electromagnetic waves beyond the photonic band gap cannot be controlled in photonic crystals ...
Yonghui Zheng +6 more
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Band gap of silicon photonic crystal with square-lattice and windmill-shaped defects
Results in Physics, 2021 A new type of 2D square-lattice photonic crystal with different windmill-shaped defects is proposed. Based on the plane wave expansion method and super cell theory, the band gaps of defect models are numerically analyzed according to the symmetry. We aim
Liqiang Zhang +4 more
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Research progress of photonic crystals in photocatalysis
Cailiao gongcheng, 2021 Photonic crystals are dielectric structure materials with photonic band gaps which are composed of matters with different dielectric constants and arranged in space periodically.
CHU Zhao-ran +4 more
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Results in Physics, 2020 A novel windmill-like-shaped defect was introduced in two-dimensional square-lattice photonic crystals consisting of circular dielectric rods. The photonic band gap (PBG) and defect modes were numerically analyzed using the plane wave expansion method ...
Daohan Ge +5 more
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Location and Topology of the Fundamental Gap in Photonic Crystals
Physical Review X, 2022 The fundamental, or first, band gap is of unmatched importance in the study of photonic crystals. Here, we address precisely where this gap can be opened in the band structure of three-dimensional photonic crystals.
Thomas Christensen +3 more
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Metallic photonic band-gap materials [PDF]
Physical Review B, 1995 We calculate the transmission and absorption of electromagnetic waves propagating in two-dimensional (2D) and 3D periodic metallic photonic band-gap (PBG) structures. For 2D systems, there is substantial difference between the {ital s}- and {ital p}-polarized waves. The {ital p}-polarized waves exhibit behavior similar to the dielectric PBG`s. But, the
Sigalas, Michael M. +3 more
openaire +3 more sources