Picosecond Laser
Applicability of a Picosecond Laser for Micro-Polishing of Metallic Surfaces
... existing picosecond laser ...total laser power among higher number of laser ...per laser pulse, which will lead to a decrease of laser fluence for a given set of other process ...
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Study of backward terahertz radiation from intense picosecond laser-solid interactions using a multichannel calorimeter system
... intense laser– plasma ...intense picosecond laser–solid interaction ...by laser- accelerated fast electrons as they cross the plasma–vacuum ...
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Directed fast electron beams in ultraintense picosecond laser irradiated solid targets
... intense, picosecond laser ...the laser polarization ...the laser propagation axis. It is shown that even for peak laser inten- sities an order of magnitude higher than the relativistic ...
5
Photoinduced refractive index variation within picosecond laser pulses excitation as the indicator of oxyorthosilicates single crystals composition modification
... The nonlinear optical response characterization of the LSO and mixed LGSO (nominally pure and doped with Ce ions) single crystals were performed under the picosecond laser excitation at 1,064 nm. The ...
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Multimillijoule coherent terahertz bursts from picosecond laser-irradiated metal foils
... many applications, for example, THz-wave-based compact accel- erators and THz control over matter. However, to date none of the THz sources reported, whether based upon large-scale accelerators or high-power lasers, have ...
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Modification of Aluminium Surface Using Picosecond Laser for Printing Applications
... Ultrafast picosecond laser pulses of wavelength of 1064nm have allowed the surface modification of anodised aluminium plate for potential industrial ...the laser with the substrate created a ...
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Synthesis by picosecond laser ablation of ligand-free Ag and Au nanoparticles for SERS applications
... by picosecond laser generated plasmas in water were ...the laser fluence, keeping fixed the other deposition parameters such as the target to scanner objective distance and laser repetition ...
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Study of backward terahertz radiation from intense picosecond laser-solid interactions using a multichannel calorimeter system
... intense laser– plasma ...intense picosecond laser–solid interaction ...by laser- accelerated fast electrons as they cross the plasma–vacuum ...
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Feasibility of ultrafast picosecond laser cleaning of soiling on historical leather buckles
... scans (see Figs. 3d, 5 right). For complete removal of the soiling particles, it was necessary to increasing the num- ber of scans up to 5 scans where two scans and four scans showed non complete removal of soiling (see ...
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Features of the generation of fast particles from microstructured targets irradiated by high intensity, picosecond laser pulses
... for laser-driven particle acceleration has the potential to significantly boost the particle and radiation energies because of enhanced laser ...a picosecond laser pulse at relativistic ...of ...
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Antibacterial mechanisms of a novel type picosecond laser-generated silver-titanium nanoparticles and their toxicity to human cells
... a picosecond laser and evaluated the toxicity of the Ag-TiO 2 NPs to a range of human cell ...the laser-generated Ag-TiO 2 ...the laser- generated Ag-TiO 2 NPs had significant antibacterial ...
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Multi-millijoule coherent terahertz bursts from picosecond laser-irradiated metal foils
... many applications, for example, THz-wave-based compact accel- erators and THz control over matter. However, to date none of the THz sources reported, whether based upon large-scale accelerators or high-power lasers, have ...
6
Experimental observations of transport of picosecond laser generated electrons in a nail-like target
... We present an experimental study using “nail” targets. These are 20 m diameter Cu wires with an approximately 80 m diameter, roughly hemispherical termination, formed by melting the wire end and subsequent machining. ...
5
Strong, tunable terahertz emission by two-color picosecond laser irradiation
... lower laser intensity, a smaller part of gas atoms are ionized with a short laser duration, say 30 fs, and there is a larger duration range to reach the optimal ...increasing laser duration at high ...
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Bursts of terahertz radiation from large-scale plasmas irradiated by relativistic picosecond laser pulses
... further laser propagation, self-modulation instability starts to ...the laser pulse transmitting the plasma slab is shown in ...the laser pulse into ...
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Acoustic phonon generation and detection in GaAs/Al0 3Ga0 7As quantum wells with picosecond laser pulses
... Ti:sapphire laser synchronized to the first is used to detect the complex reflectance change ␦ r of the sample using a Sagnac interferometer 20 shown in the region of ...
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Study of spallation by sub-picosecond laser driven shocks in metals
... In the following paragraphs, we detail the procedure used to obtain parameter set for the Kanel empirical ductile damage model [4] at high strain rate. The numerical study is divided into three steps: first, the pressure ...
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Effect of defocusing on picosecond laser coupling into gold cones
... the laser maintains the overall energy coupled into the cone, but softens the spectrum of the gener- ated electrons, for the low temperature component of the electron ...in laser- energy coupling, could be ...
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Photon echoes from (In,Ga)As quantum dots embedded in a Tamm plasmon microcavity
... to picosecond laser pulses occurs in form of photon echoes (PEs): (i) The magnitude of the PE signal and its dependence on exci- tation intensity differ drastically from bare ...
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1 Three-dimensional laser printing of macro-scale glass
... The fabrication resolution offered by loosely focusing the picosecond laser pulses into fused. 130[r] ...
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