Results 91 to 100 of about 9,667 (268)

Depressed clad hollow optical fiber with fundamental LP01 mode cut-off

open access: yes, 2006
We propose a depressed clad hollow optical fiber with fundamental (LP01) mode cut-off suitable for high power short-wavelength, especially three-level, fiber laser operation by introducing highly wavelength dependent losses at longer wavelengths. The cut-
Codemard, C.   +15 more
core   +1 more source

Low‐Dimensional Materials and Van Der Waals Heterostructures for Energy Application: A Comprehensive Review

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Low‐dimensional materials (0D, 1D, and 2D) exhibit unique electronic and physicochemical properties, enabling advanced nanoelectronic and optoelectronic devices. Mixed‐dimensional heterostructures combine these materials to enhance functionality.
Qaisar Alam   +3 more
wiley   +1 more source

Ultra-Low-Noise, Single-Frequency, All-PM Thulium- and Holmium-Doped Fiber Amplifiers at 1950 nm and 2090 nm for Third-Generation Gravitational Wave Detectors

open access: yesIEEE Photonics Journal
In the context of the E-TEST Interreg project, Fraunhofer ILT develops high stability, narrow linewidth laser seed sources and amplifiers at a wavelength of approx.
Patrick Baer   +5 more
doaj   +1 more source

Brain–Computer Interfaces: The Dawn of a New Era in Disease Treatment

open access: yesExploration, EarlyView.
This study investigates the potential of brain–computer interface (BCI) technology in treating neuropsychiatric disorders, such as movement and communication barriers. Our review examines the history, signal paradigms, and diverse applications of BCI while also discussing ongoing research into novel materials and emerging technologies that offer ...
Yuqi Feng   +11 more
wiley   +1 more source

Ho-doped silica fibre laser in-band pumped by a Tm-doped fibre laser [PDF]

open access: yes, 2009
Over the last few years there has been increasing interest in power-scaling of fibre-based sources operating in the eyesafe two-micron wavelength regime driven by a range of applications. Much of this interest has focussed on Tm-doped silica fibres which
J. W. Kim   +7 more
core   +1 more source

Fiber chirped pulse amplification of a short wavelength mode-locked thulium-doped fiber laser

open access: yesAPL Photonics, 2017
Exploiting the promising third near-infrared optical window (1600–1870 nm) for deep bioimaging is largely underdeveloped, mostly because of the lack of stable femtosecond laser sources in leveraging the less scattering loss and locally reduced water ...
Can Li   +6 more
doaj   +1 more source

Fluorene‐based blue emitters: On the path to electrically pumped organic lasers

open access: yesFlexMat, EarlyView.
Electrically pumped efficient operation remains unrealized, a major challenge in optoelectronics. Fluorene‐based blue‐emitting semiconductors are promising gain media, thanks to their structural tunability and favorable emission properties. This review summarizes recent advances, highlights their reliability and versatility in lasing, and outlines key ...
Yong Yan   +7 more
wiley   +1 more source

All-Normal Dispersion Hole-Assisted Silica Fibers for Generation of Supercontinuum Reaching Midinfrared

open access: yesIEEE Photonics Journal, 2016
A design of technologically feasible hole-assisted silica fibers with all-normal dispersion was proposed and optimized for maximum dispersion located, respectively, at 1.55 and 1.97 $\mu\text{m} $.
K. Tarnowski, W. Urbanczyk
doaj   +1 more source

Usefulness of Thulium-Doped Fiber Laser and Diode Laser in Zero Ischemia Kidney Surgery-Comparative Study in Pig Model. [PDF]

open access: yesMaterials (Basel), 2021
Żywicka B   +8 more
europepmc   +1 more source

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