Results 31 to 40 of about 1,031,199 (276)

Thermal Lensing and Laser-Induced Damage in Special Pure Chalcogenide Ge35As10S55 and Ge20As22Se58 Glasses under Quasi-CW Fiber Laser Irradiation at 1908 nm

open access: yesPhotonics, 2023
Special pure chalcogenide glass is the material of choice for many mid-infrared optical fibers and fiber lasers. In this paper, the thermo-optical lensing and laser-induced damage were studied in Ge35As10S55 and Ge20As22Se58 glasses and compared with the
Oleg Antipov   +6 more
doaj   +1 more source

Direct ultrafast laser written C-band waveguide amplifier in Er-doped chalcogenide glass [PDF]

open access: yes, 2012
This paper reports the fabrication and characterization of an ultrafast laser written Er-doped chalcogenide glass buried waveguide amplifier; Er-doped GeGaS glass has been synthesized by the vacuum sealed melt quenching technique.
Asokan, Sundarrajan   +4 more
core   +1 more source

Ultrafast Laser Direct-Writing of Self-Organized Microstructures in Ge-Sb-S Chalcogenide Glass

open access: yesFrontiers in Physics, 2022
The structuring of mid-IR materials, such as chalcogenide glass (ChG), at the micro and nano scales, is of high interest for the fabrication of photonic devices in general, and for spectroscopy applications in particular.
Gözden Torun   +3 more
doaj   +1 more source

Mid-infrared hollow core fiber drawn from a 3D printed chalcogenide glass preform

open access: yesOptical Materials Express, 2020
We report the fabrication of a microstructured optical fiber drawn from a soft glass 3D printed preform. For this proof of concept, a chalcogenide glass that is well known for its capability to be shaped at low temperature and its mid-infrared ...
J. Carcreff   +10 more
semanticscholar   +1 more source

Advances in infrared and imaging fibres for astronomical instrumentation [PDF]

open access: yes, 2006
Optical fibres have already played a huge part in ground based astronomical instrumentation, however, with the revolution in photonics currently taking place new fibre technologies and integrated optical devices are likely to have a profound impact on ...
Haynes, Roger   +3 more
core   +2 more sources

Radial gradient refractive index (GRIN) infrared lens based on spatially resolved crystallization of chalcogenide glass

open access: yesOptical Materials Express, 2020
While widely used in the visible, radial gradient refractive index (GRIN) lenses are still elusive in the IR waveband. In this paper we introduce a new method based on spatially resolved crystallization of chalcogenide glass to produce such lenses ...
É. Lavanant   +7 more
semanticscholar   +1 more source

Chalcogenide-glass polarization-maintaining photonic crystal fiber for mid-infrared supercontinuum generation [PDF]

open access: yes2019 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC), 2019
In this paper, we report the design and fabrication of a highly birefringent polarization-maintaining photonic crystal fiber made from chalcogenide glass, and its application to linearly-polarized supercontinuum generation in the mid-infrared region. The
A. Ghosh   +8 more
semanticscholar   +1 more source

Numerical Simulation of Dynamic Bandgap Control in All-Solid Chalcogenide–Tellurite Photonic Bandgap Fiber

open access: yesIEEE Photonics Journal, 2013
Dynamic bandgap control in all-solid chalcogenide-tellurite photonic bandgap fiber (PBGF) by the refractive index changes due to the optical Kerr effect is numerically simulated in this paper.
Tonglei Cheng   +7 more
doaj   +1 more source

Mid-infrared spectral broadening in an ultrafast laser inscribed gallium lanthanum sulphide waveguide [PDF]

open access: yes, 2012
We report the successful fabrication of mid-infrared waveguides written in a gallium lanthanum sulphide (GLS) substrate via the ultrafast laser inscription technique. Single mode guiding at 2485 nm and 3850 nm is observed.
Bookey, Henry T.   +4 more
core   +1 more source

Chalcogenide Glass Metamaterial Optical Switch [PDF]

open access: yesFrontiers in Optics 2009/Laser Science XXV/Fall 2009 OSA Optics & Photonics Technical Digest, 2009
The technology behind rewritable optical disks offers a new switching paradigm for metamaterials. A switch comprising resonant plasmonic metamaterial and electro-optic chalcogenide glass layers provides 75% optical transmission modulation in a device of subwavelength ...
Sámson, Z.L.   +8 more
openaire   +2 more sources

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