Results 31 to 40 of about 39,508 (311)

Powerscaling of Ultrafast Lasers [PDF]

open access: yesLaser Technik Journal, 2010
AbstractToday, ultra‐short laser pulses have found widespread applications in metrology, atomic, molecular, solid‐state, plasma and nuclear physics. Ultra‐precise machining of nearly every material is possible based on an almost non‐thermal processing.
Peter Rußbüldt   +4 more
openaire   +1 more source

Modulated Noncollinear Optical Parametric Amplifier Output Induced by Stimulated Raman Scattering

open access: yesApplied Sciences, 2021
We studied spectra of the amplified signal from a noncollinear optical parametric amplifier (NOPA) based on a Ti:sapphire laser and BBO crystal gain medium.
Takayoshi Kobayashi, Zhuan Wang, Jun Liu
doaj   +1 more source

High-Power Lensless THz Imaging of Hidden Objects

open access: yesIEEE Access, 2021
The potential of pulsed THz radiation for time-of-flight imaging applications is well recognized. However, advances in this field are currently severely limited by the low average power of ultrafast THz sources.
Samira Mansourzadeh   +9 more
doaj   +1 more source

Mid-infrared volume phase gratings manufactured using ultrafast laser inscription [PDF]

open access: yes, 2013
We report on the ultrafast laser inscription (ULI) of volume phase gratings inside gallium lanthanum sulphide (GLS) chalcogenide glass substrates. The effect of laser pulse energy and grating thickness on the dispersive properties of the gratings is ...
Thomson, Robert R   +3 more
core   +1 more source

High fidelity femtosecond pulses from an ultrafast fiber laser system via adaptive amplitude and phase pre-shaping [PDF]

open access: yes, 2009
We report the generation of a 12.6W average power, 50MHz repetition rate pulse train, compressible to high fidelity 170fs pulses, from an ultrafast ytterbium-doped fiber laser system via adaptive amplitude and phase pre ...
Shepherd, D.P.   +11 more
core   +1 more source

Femtosecond Laser Fabrication of Anatase TiO2 Micro-nanostructures with Chemical Oxidation and Annealing

open access: yesScientific Reports, 2017
The fabrication of nanoporous anatase TiO2 on a microstructured Ti base is achieved through an innovative hybrid fabrication method involving femtosecond laser ablation coupled with H2O2 oxidation and annealing. The anatase TiO2 micro-nanostructures have
Ting Huang   +5 more
doaj   +1 more source

5D data storage by ultrafast laser nanostructuring in glass [PDF]

open access: yes, 2013
The high-density five dimensional data storage with ultrafast laser writing is demonstrated. The text file is recorded by polarization controlled self-assembled form birefringence and retrieved in glass opening the era of unlimited lifetime data ...
Kazansky, P.G.   +7 more
core   +1 more source

Ultrafast generation and detection of coherent acoustic phonons in SnS0.91Se0.09

open access: yesResults in Physics, 2023
The rapid growth of attention to tin sulfide (SnS) is due to its efficient application in the field of thermoelectricity, and its doping product SnS0.91Se0.09 can obtain a high average thermoelectric figure of merit (ZTave≈ 1.25).
Xiao-Ran Ma   +5 more
doaj   +1 more source

Dose-efficient scanning Compton X-ray microscopy

open access: yesLight: Science & Applications, 2023
The highest resolution of images of soft matter and biological materials is ultimately limited by modification of the structure, induced by the necessarily high energy of short-wavelength radiation.
Tang Li   +12 more
doaj   +1 more source

Correlation analysis among multiple images of plasma induced during fiber laser–arc hybrid welding

open access: yesAIP Advances, 2020
In this study, the multiple imaging morphological features of plasma have been observed by using the multiple-imaging technique during the fiber laser–tungsten insert gas (TIG) arc hybrid welding.
Jianglin Zou, Lida Wang, Rongshi Xiao
doaj   +1 more source

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