Results 11 to 20 of about 2,859,854 (215)

Laser acceleration of monoenergetic protons via a double layer emerging from an ultra-thin foil [PDF]

, 2009
We present theoretical and numerical studies of the acceleration of monoenergetic protons in a double layer formed by the laser irradiation of an ultra-thin film.
Shukla, Padma K., Liu, Chuan S.,, Sagdeev, Roald Z.,, Eliasson, Bengt,, Liu, Chuan S., Shao, Xi, Shao, Xi,, Sagdeev, Roald Z., Eliasson, Bengt, Shukla, Padma Kant,   +9 more
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Possible explanations for different surface quality in laser cutting with 1 micron and 10 microns beams [PDF]

, 2012
In laser　cutting　of　thick　steel　sheets,　quality　difference　is　observed　between　cut　surfaces　obtained　with 1 micron and 10 micron laser beams. This paper investigates physical mechanisms for this interesting and important problem of the wavelength ...
Remy Fabbro, Koji Hirano, FABBRO, Rémy, HIRANO, Koji   +3 more
core   +1 more source

Analysis of hybrid Nd:Yag laser-MAG arc welding processes. [PDF]

, 2011
In the hybrid laser-arc welding process, a laser beam and an electric arc are coupled in order to combine the advantages of both processes: high welding speed, low thermal load and high depth penetration thanks to the laser; less demanding on joint ...
F. Coste, E. Le Guen, P. Le Masson, COSTE, Frédéric, LE MASSON, Philippe, M. Carin, LE GUEN, Emilie, FABBRO, Rémy, CARIN, Muriel, R. Fabbro   +9 more
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Optical trapping with superfocused high-M2 laser diode beam [PDF]

, 2015
Many applications of high-power laser diodes demand tight focusing. This is often not possible due to the multimode nature of semiconductor laser radiation possessing beam propagation parameter M2 values in double-digits.
Kuchinskii, V. I., S. N. Loseva, Deryagin, A. G., M. Farsarib, Soboleva, K.K., V. V. Dudelev, W. Sibbett, Rafailov, E. U., Dudelev, V. V., Melissinaki, V., Deryagin, A.G., V. V. Dudeleva, Sobolev, K. K., K. K. Soboleva, V. Melissinaki, Kuchinskii, V.I., A. G. Deryagin, V. I. Kuchinskiia, Rafailov, E.U., G. S. Sokolovskii, Losev, S.N., A. G. Deryagina, V. I. Kuchinskii, M. Farsari, K. K. Sobolevac, Sokolovskii, G.S., V. Melissinakib, W. Sibbette, G. S. Sokolovskiia, Sokolovskii, G. S., Dudelev, V.V., E. U. Rafailov, Farsari, M., Losev, S. N., Sibbett, W., E. U. Rafailovf, S. N. Losev   +36 more
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Laminar shocks in high power laser plasma interactions [PDF]

, 2013
We propose a theory to describe laminar ion sound structures in a collisionless plasma. Reflection of a small fraction of the upstream ions converts the well known ion acoustic soliton into a structure with a steep potential gradient upstream and with ...
Cairns, R. A., R. Trines, Norreys PA, Cairns, RA, Trines, R, P. Norreys, Bingham, R, Norreys, Peter, Norreys, P., R. Bingham, Norreys, P, Trines R, Bingham R, Cairns RA, Bingham, R., Trines, R., R. A. Cairns, Norreys P   +17 more
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Measurement of laser absorptivity for operating parameters characteristic of laser drilling regime [PDF]

, 2008
Publisher version : http://iopscience.iop.org/0022-3727/41/15/155502/Laser drilling in the percussion regime is commonly used in the aircraft industry to drill sub-millimetre holes in metallic targets.
SCHNEIDER, Matthieu, BERTHE, Laurent, FABBRO, Rémy, MULLER, Maryse   +3 more
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Charge resolved electrostatic diagnostic of colliding copper laser plasma plumes [PDF]

, 2011
The collision of two laser generated plasma plumes can result, under appropriate conditions, in the formation of ‘stagnation layer’. The processes underlying this phenomenon are complex and time dependent.
Yeates, P., Costello, John T., P. Yeates, J. T. Costello, E. T. Kennedy, Kennedy, E.T., C. Fallon, Fallon, Conor   +7 more
core   +1 more source

An open-path, hand-held laser system for the detection of methane gas [PDF]

, 2005
We have developed an open-path hand-held gas detector incorporating a distributed feedback InGaAs laser diode at 1.65 µm. Incorporated into a hand-held transceiver unit, the emitted laser beam is backscattered from nearby surfaces, collected and focused ...
Padgett, M, Murray, S, van Well, Ben, Gibson, G, Strzoda, Rainer, Padgett, Miles, van Well, B, Hodgkinson, Jane, Pride, Russ D., Murray, Stuart, Gibson, Graham, Strzoda, R, Pride, R, Hodgkinson, J   +13 more
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Implementation of Ag/ SiO2 nanofilms for metamaterial engineering

Results in Physics, 2022
Low dimensions of the nanostructured thin films are essential in applications of miniaturized optical systems. Noble metal thin films of different thicknesses (4–10 nm) were obtained by radio frequency magnetron sputtering (rfMS) with controlled ...
Petronela Prepelita, Florin Garoi, Marius Dumitru, Valentin Craciun   +3 more
doaj   +1 more source

On the possibility for laboratory simulation of generation of Alfvén disturbances in magnetic tubes in the solar atmosphere

Solar-Terrestrial Physics, 2016
The paper deals with generation of Alfvén plasma disturbances in magnetic flux tubes through exploding laser plasma in magnetized background plasma. Processes with similar effect of excitation of torsion-type waves seem to provide energy transfer from ...
Prokopov P.A., Zakharov Yu.P., Tishchenko V.N., Boyarintsev E.L., Melekhov A.V., Ponomarenko A.G., Posukh V.G., Shaikhislamov I.F.   +7 more
doaj   +1 more source