Journal ArticleDOI
Diffraction inhibition in two-dimensional photonic crystals
TLDR
The existence of flat equal-frequency contour across the entire first Brillouin zone in two-dimensional photonic crystals is shown and it is shown that the beam can be highly localized between two neighboring rows of the defect-free photonic crystal.Abstract:
We show the existence of flat equal-frequency contour across the entire first Brillouin zone in two-dimensional photonic crystals. Under this condition, light diffraction can be inhibited. Moreover, the beam can be highly localized between two neighboring rows of the defect-free photonic crystal. Such a finding may have novel applications in light beam manipulations and on-chip integrated photonic devices.read more
Citations
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Journal ArticleDOI
Acoustic logic gates and Boolean operation based on self-collimating acoustic beams
TL;DR: This paper has proposed acoustic logic gates based on the linear interference of self-collimated beams in 2D sonic crystals (SCs) with line-defects that provide a promising approach for acoustic signal computing and manipulations.
Journal ArticleDOI
Millimeter-Scale and Large-Angle Self-Collimation in a Photonic Crystal Composed of Silicon Nanorods
TL;DR: In this paper, a large-angle self-collimation phenomenon was observed in photonic crystals composed of nanorods, and a propagation length of 0.4 mm was observed over the wavelength ranging from 1540 nm to 1570 nm even in the large incident angle case.
Journal ArticleDOI
Y-shaped beam splitter by graded structure design in a photonic crystal
Kun Ren,XiaoBin Ren +1 more
TL;DR: In this article, a beam splitter is designed with a composite structure constructed using two graded photonic crystals, and the incident beam is divided into two output beams by the designed splitter.
Journal ArticleDOI
Bending self-collimated one-way light by using gyromagnetic photonic crystals
Qing-Bo Li,Zhen Li,Rui-Xin Wu +2 more
TL;DR: In this article, it was shown that electromagnetic waves can self-collimate and propagate unidirectionally in photonic crystals fabricated using semicylindrical ferrite rods in magnetized states.
Journal ArticleDOI
All-Angle Quasi-Self-Collimation Effect in a Rod-Type Silicon Photonic Crystal
Ming Li,Wei Li,Haiyang Huang,Jing Wang,You Li,Aimin Wu,Zhen Sheng,Xi Wang,Shichang Zou,Fuwan Gan +9 more
TL;DR: In this article, the authors proposed a straightness factor L based on the method of least squares to investigate the straightness of the isofrequency contour and the quasi-self-collimation effect.
References
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Journal ArticleDOI
Self-collimating phenomena in photonic crystals
Hideo Kosaka,T. Kawashima,Akihisa Tomita,Masaya Notomi,Masaya Notomi,Toshiaki Tamamura,Toshiaki Tamamura,Takashi Sato,Shojiro Kawakami +8 more
TL;DR: In this article, self-determining collimated light is generated in a photonic crystal fabricated on silicon and the divergence of the collimated beam is insensitive to that of the incident beam and much smaller than the divergence generated in conventional Gaussian optics.
Journal ArticleDOI
Achieving centimetre-scale supercollimation in a large-area two-dimensional photonic crystal.
Peter T. Rakich,Marcus S. Dahlem,S. N. Tandon,Mihai Ibanescu,Marin Soljacic,Gale S. Petrich,John D. Joannopoulos,Leslie A. Kolodziejski,Erich P. Ippen +8 more
TL;DR: Through quantitative studies of the beam evolution in a two-dimensional PhC, it is found thatsupercollimation possesses unexpected but inherent robustness with respect to short-scale disorder such as fabrication roughness, enabling supercollimation over 600 isotropic diffraction-lengths.
Journal ArticleDOI
Self-collimation in photonic crystal structures: a new paradigm for applications and device development
Dennis W. Prather,Shouyuan Shi,Janusz Murakowski,Garrett J. Schneider,Ahmed Sharkawy,Caihua Chen,Bing Lin Miao,Richard D. Martin +7 more
TL;DR: In this paper, the development of the self-collimation phenomenon in photonic crystal structures for integrated optics applications is reported, including channelless waveguiding, orthogonal bending of light, tunable beam splitter, all-optical analog-to-digital converter, reconfigurable optical switch, chemical/gas sensor and a three-dimensional optical interconnect bus.
Journal ArticleDOI
Inhibition of light tunneling in waveguide arrays.
Alexander Szameit,Yaroslav V. Kartashov,Felix Dreisow,Matthias Heinrich,Thomas Pertsch,Stefan Nolte,Andreas Tünnermann,Victor A. Vysloukh,Falk Lederer,Lluis Torner +9 more
TL;DR: The observation of almost perfect light tunneling inhibition at the edge and inside laser-written waveguide arrays due to band collapse is reported.
Journal ArticleDOI
Observation of coherent destruction of tunneling and unusual beam dynamics due to negative coupling in three-dimensional photonic lattices.
TL;DR: By fine-tuning the lattice modulation, this work demonstrates coherent destruction of tunneling (CDT) in optically induced three-dimensional photonic lattices and shows unusual behavior of beam propagation, including light tunneling inhibition, anomalous diffraction, and negative refraction mediated by zero or negative coupling in the waveguide arrays.