Results 21 to 30 of about 2,640,465 (292)

Surface Acoustic Wave Biosensor with Laser-Deposited Gold Layer Having Controlled Porosity

open access: yesChemosensors, 2021
Laser-deposited gold immobilization layers having different porosities were incorporated into love wave surface acoustic wave sensors (LW-SAWs). Variation of pulsed laser deposition parameters allows good control of the gold film morphology.
Dana Miu   +3 more
doaj   +1 more source

Laser plasma in a magnetic field [PDF]

open access: yesReview of Scientific Instruments, 2010
Laser ion source (LIS) is a candidate among various heavy ion sources. A high density plasma produced by Nd:yttrium aluminum garnet laser with drift velocity realizes high current and high charge state ion beams. In order to obtain higher beam current, we made experiments using the LIS with a magnetic field by which a confinement effect can make higher
Kondo,K.   +4 more
openaire   +2 more sources

High-Sensitivity H2 and CH4 SAW Sensors with Carbon Nanowalls and Improvement in Their Performance after Plasma Treatment

open access: yesChemosensors, 2023
We have developed surface acoustic wave (SAW) sensors with high sensitivity and a reversible response at room temperature (RT). The sensitive area of the sensor was prepared from vertically aligned graphene sheets, like carbon nanowalls (CNWs), which ...
Sorin Vizireanu   +4 more
doaj   +1 more source

Measurement of the sound velocity of shock compressed water

open access: yesScientific Reports, 2021
The sound velocities of water in the Hugoniot states are investigated by laser shock compression of precompressed water in a diamond anvil cell. The obtained sound velocities in the off-Hugoniot region of liquid water at precompressed conditions are used
Hua Shu   +13 more
doaj   +1 more source

Hydrogen atom in a laser-plasma [PDF]

open access: yesLaser Physics Letters, 2016
We scrutinize the behaviour of hydrogen atom's eigenvalues in a quantum plasma as it interacts with electric field directed along $θ=π$ and exposed to linearly polarized intense laser field radiation. Using the Kramers-Henneberger (KH) unitary transformation, which is semiclassical counterpart of the Block-Nordsieck transformation in the quantized ...
Falaye, Babatunde James   +4 more
openaire   +2 more sources

IDENTIFIKASI UNSUR NIKEL DENGAN TEKNIK LASER INDUCED PLASMA (LIP) [PDF]

open access: yes, 2004
The line spectral of Ni element has been obtained for high and low concentration using Laser Induced Plasma (LIP) method. Focusing of high power pulse laser without pre treatment on the sample generates the Ni plasma contributed to atomic emission.
Kulla, Irwanuddin H.   +2 more
core   +1 more source

The Role of Pulse Energy On Laser Induced Secondary Plasma Generation [PDF]

open access: yes, 2005
An observation about the role of laser pulse energy on the secondary plasma generation has been point out. The plasma emission intensity as a function of laser pulse energy was detected by using a monochromator combined with photomultiplier tube.
Setia Budi, Wahyu
core   +1 more source

Possible explanations for different surface quality in laser cutting with 1 micron and 10 microns beams [PDF]

open access: yes, 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   +3 more
core   +1 more source

Use of X-ray Computed Tomography for Assessing Defects in Ti Grade 5 Parts Produced by Laser Melting Deposition

open access: yesMetals, 2020
Laser Melting Deposition (LMD) is a metal printing technique that allows for the manufacturing of large objects by Directed Energy Deposition. Due to its versatility in variation of parameters, the possibility to use two or more materials, to create ...
Diana Chioibasu   +8 more
doaj   +1 more source

Chirped pulse Raman amplification in plasma: high gain measurements [PDF]

open access: yes, 2009
High power short pulse lasers are usually based on chirped pulse amplification (CPA), where a frequency chirped and temporarily stretched ``seed'' pulse is amplified by a broad-bandwidth solid state medium, which is usually pumped by a monochromatic ...
Yang, X.   +9 more
core   +4 more sources

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