Journal ArticleDOI
Single-Mode Photonic Band Gap Guidance of Light in Air.
R.F. Cregan,Brian Joseph Mangan,Jonathan Knight,Tim A. Birks,P. St. J. Russell,Peter John Roberts,Douglas C. Allan +6 more
TLDR
The confinement of light within a hollow core (a large air hole) in a silica-air photonic crystal fiber is demonstrated and certain wavelength bands are confined and guided down the fiber.Abstract:
The confinement of light within a hollow core (a large air hole) in a silica-air photonic crystal fiber is demonstrated Only certain wavelength bands are confined and guided down the fiber, each band corresponding to the presence of a full two-dimensional band gap in the photonic crystal cladding Single-mode vacuum waveguides have a multitude of potential applications from ultrahigh-power transmission to the guiding of cold atomsread more
Citations
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Journal ArticleDOI
Analysis of ring-structured Bragg fibres for single TE mode guidance.
TL;DR: Ring-structured Bragg fibres that support a single TE-polarisation mode are investigated and an approximate model based on homogenisation is explored.
Journal ArticleDOI
Optimization-free approach for broadband achromatic metalens of high-numerical-aperture with high-index dielectric metasurface
Journal ArticleDOI
Hollow-core photonic-crystal fibres for laser dentistry
Stanislav O. Konorov,V. P. Mitrokhin,Andrei B. Fedotov,D. A. Sidorov-Biryukov,Beloglazov Valentin I,N. B. Skibina,Ernst Wintner,Michael Scalora,Aleksei M. Zheltikov +8 more
TL;DR: The hollow-core PCF is shown to support the single-fundamental-mode regime for 1.06 microm laser radiation, serving as a spatial filter and allowing the laser beam quality to be substantially improved.
Patent
Methods and systems for extracting energy from a heat source using photonic crystals with defect cavities
TL;DR: In this paper, a photonic crystal with defect cavities was used to extract energy from a heat source using photonic crystals with defect cavity, where the cavity is substantially within the crystal and is responsive to the electromagnetic beam such that the cavity transmits the emitted electromagnetic beam to a specified location.
Journal ArticleDOI
How fluorine minimizes density fluctuations of silica glass: Molecular dynamics study with machine-learning assisted force-matching potential
TL;DR: In this article, a study devoted to answer the riddle of F-doping and an accurate force-matching potential optimized by machine-learning enables us to understand how fluorine remedies the disorders in silica glass.
References
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Journal ArticleDOI
All-silica single-mode optical fiber with photonic crystal cladding
TL;DR: The fabrication of a new type of optical waveguide: the photonic crystal fiber that supports a single robust low-loss guided mode over a very broad spectral range of at least 458-1550 nm.
Journal ArticleDOI
Endlessly single-mode photonic crystal fiber.
TL;DR: An effective-index model confirms that an all-silica optical fiber made by embedding a central core in a two-dimensional photonic crystal with a micrometer-spaced hexagonal array of air holes can be single mode for any wavelength.
Journal ArticleDOI
Hollow metallic and dielectric waveguides for long distance optical transmission and lasers
TL;DR: In this paper, the field configurations and propagation constants of a hollow circular waveguide made of dielectric material or metal for application as an optical waveguide were determined and the increase of attenuation due to curvature of the axis was also determined.
Journal ArticleDOI
Photonic Band Gap Guidance in Optical Fibers
TL;DR: A fundamentally different type of optical waveguide structure is demonstrated, in which light is confined to the vicinity of a low-index region by a two-dimensional photonic band gap crystal.
Journal ArticleDOI
Full 2-D photonic bandgaps in silica/air structures
TL;DR: In this paper, full 2D photonic bandgaps are demonstrated for all polarisations in structures with refractive index contrast as small as that of silica and air, and a new type of optical fiber based on these structures is proposed.