Results 31 to 40 of about 3,969,324 (281)

Lyot Filter With Femtosecond Laser-Induced High Birefringence Single-Mode Fiber for Torsion, Transverse Load and Temperature Sensing

open access: yesIEEE Access, 2020
We propose and experimentally demonstrate an all-fiber Lyot filter with femtosecond laser-induced high birefringence single-mode fiber (SMF) for torsion, transverse load and temperature sensing.
Bo Huang, Ying Wang, Chun Mao
doaj   +1 more source

Recent Advances in Femtosecond Laser Fabrication: From Structures to Applications

open access: yesIEEE Open Journal of Nanotechnology, 2021
Femtosecond laser processing is fast becoming a pervasive method for fabricating micro/nanostructures because it can be used to produce micro/nanostructures on myriads of materials with high precision and resolution, requires little control
Yangdong Wen   +8 more
doaj   +1 more source

Fibre Bragg grating fabrication in germanosilicate fibres with 244nm femtosecond laser light

open access: yes, 2006
The ability to fabricate strong and extraordinarily stable Bragg gratings in any type of fibre using femtosecond laser light has attracted much interest in the recent past. The induced index change has been attributed to glass densification brought about
Banks, D.P.   +9 more
core   +1 more source

Nonlinear ultrafast laser processing of diamond surfaces for precision microfabrication

open access: yesPhysical Sciences and Technology
Ultrafast femtosecond laser processing provides a versatile platform for precision micro- and nanoscale modification of wide-bandgap materials such as diamond.
Yelena White
doaj   +3 more sources

Femtosecond lasers for processing glassy and polymeric materials [PDF]

open access: yesMaterials Research, 2013
Novel materials have been developed to meet the increasing mechanical, electrical and optical properties required for technological applications in different fields of sciences. Among the methods available for modifying and improving materials properties,
A. J. G. Otuka   +6 more
doaj   +2 more sources

Femtosecond laser‐produced optical absorbers for solar‐thermal energy harvesting

open access: yesEcoMat, 2022
Optical absorbers are a key component in all solar‐thermal energy technologies. Cermet‐based solar absorbers are commonly used in solar‐thermal applications. However, due to their multilayered structures, these absorbers have limited thermal conductivity
Subhash C. Singh, Chunlei Guo
doaj   +1 more source

Nonthermal phase transitions in semiconductors induced by a femtosecond extreme ultraviolet laser pulse [PDF]

open access: yes, 2013
Part of Focus on High Energy Density Physics. In this paper, we present a novel theoretical approach, which allows the study of nonequilibrium dynamics of both electrons and atoms/ions within free-electron laser excited semiconductors at femtosecond time
Jeschke, H. O.   +3 more
core   +1 more source

Femtosecond Laser Fabrication of Wettability-Functional Surfaces: A Review of Materials, Structures, Processing, and Applications

open access: yesNanomaterials
Wettability-functional surfaces are crucial in both theoretical investigation and engineering applications. Compared to traditional micro/nano fabrication methods (such as ion etching, sol–gel, chemical vapor deposition, template techniques, and self ...
Zelin Chen   +4 more
doaj   +1 more source

Defect evolution and color center generation of high energy density femtosecond laser processed IIa diamond [PDF]

open access: yesNanotechnology and Precision Engineering
This study investigated the effects of high-energy-density femtosecond laser pulses on diamond under different pulse counts, revealing the resulting structural changes and defect-formation mechanisms.
Bing Dong   +5 more
doaj   +1 more source

Ultrafast Photoexcitation Induced Nonthermal Lattice Expansion in 2D Perovskite

open access: yesAdvanced Science
Light‐induced lattice change of perovskites is found to be critical for device performance. However, the underlying mechanism is still not fully understood.
Xiangyu Chen   +4 more
doaj   +1 more source

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