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
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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
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Patent
Apparatus for applying a plurality of electro-magnetic radiations to a sample
TL;DR: In this paper, an apparatus for applying a plurality of electro-magnetic radiations to a sample is provided, in which one of channels can facilitate a first radiation of the radiations within an anatomical structure, and another one of the channels can enable a second radiation to be forwarded to the sample.
Journal ArticleDOI
All-Fiber Multi-Purpose Gas Cells and Their Applications in Spectroscopy
TL;DR: In this paper, a multi-purpose all-fiber design for gas-filled cavities based on hollow core photonic crystal fibers and on a specially designed fiber connector system is demonstrated.
Journal ArticleDOI
Phase-matched four-wave mixing and sensing of water molecules by coherent anti-Stokes Raman scattering in large-core-area hollow photonic-crystal fibers
TL;DR: In this article, phase-matched coherent anti-Stokes Raman scattering in hollow photonic-crystal fibers is demonstrated for millijoule nanosecond pulses guided by photonic bandgaps of hollow fibers with a two-dimensionally periodic cladding and a core diameter of ∼50µm.
Journal ArticleDOI
Spectrum ameliorative optical fiber temperature sensor based on hollow-core fiber and inner zinc oxide film
Hao Sun,Hao Luo,Xin Wu,Lei Liang,Wang Yucheng,Xiangchao Ma,Jianqi Zhang,Manli Hu,Xueguang Qiao +8 more
TL;DR: A spectrum ameliorative optical fiber temperature sensor based on hollow-core fiber and inner zinc oxide (ZnO) film is proposed in this paper, which can realize high temperature measurement up to 460°C.
Journal ArticleDOI
Ultrashort pulse Kagome hollow-core photonic crystal fiber delivery for nonlinear optical imaging.
TL;DR: To the best of the knowledge, this is the first report on undistorted TPEF imaging in a LSM with 15 fs pulses delivered through a 1 m long Kagome HC-PCF with high throughput.
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.
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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.