scholarly journals Characterization of Metal Sprays Created by a Picosecond Laser-Induced Forward Transfer (LIFT) Process

2012 ◽  
Vol 39 ◽  
pp. 409-415
Author(s):  
R. Pohl ◽  
G.R.B.E. Römer ◽  
M.B. Hoppenbrouwers ◽  
A.J. Huis In’t Veld
Keyword(s):  
Picosecond Laser ◽  
Forward Transfer

Characterization of WO3 thin films prepared by picosecond laser deposition for gas sensing

2017 ◽  
Vol 248 ◽  
pp. 153-159 ◽  
Author(s):  
Elisabeth M. Preiß ◽  
Andreas Krauß ◽  
Ville Kekkonen ◽  
Nicolae Barsan ◽  
Helmut Seidel
Keyword(s):  
Thin Films ◽  
Gas Sensing ◽  
Picosecond Laser ◽  
Laser Deposition ◽  
Wo3 Thin Films

Characterization of Enamel and Dentin Response to Nd:YAG Picosecond Laser Ablation

1999 ◽  
Vol 17 (3) ◽  
pp. 127-131 ◽  
Author(s):  
R.F.Z. LIZARELLI ◽  
C. KURACHI ◽  
L. MISOGUTI ◽  
V.S. BAGNATO
Keyword(s):  
Laser Ablation ◽  
Picosecond Laser

scholarly journals Pico- to nanosecond pulsed laser-induced forward transfer (LIFT) of silver nanoparticle inks: a comparative study

2019 ◽  
Vol 125 (12) ◽  
Author(s):  
J. Mikšys ◽  
G. Arutinov ◽  
G. R. B. E. Römer
Keyword(s):  
Surface Area ◽  
Silver Nanoparticle ◽  
Laser Fluence ◽  
Printed Electronics ◽  
Functional Materials ◽  
Picosecond Laser ◽  
Processing Parameters ◽  
Nanosecond Laser ◽  
Forward Transfer ◽  
Nanoparticle Inks

Abstract Silver nanoparticle inks are among the key functional materials used in printed electronics. Depositing it by laser-induced forward transfer remains a challenging task because the non-linear rheological nature of these inks narrows the range of the laser processing parameters. Understanding, therefore, the influence of the laser parameters on the ejection dynamics and deposition quality is of critical importance. The influence of the laser pulse duration from pico- to nanosecond-laser-induced jet dynamics was investigated using time-resolved shadowgraphy imaging. Jet speed and surface area analyses showed that in the lower laser fluence level range, picosecond pulses induce higher surface area ejections which propagate at higher velocities. As the laser fluence levels were increased, the difference in jet velocity and surface area evolutions narrows. Deposition analysis showed a similar behavior with lower transfer thresholds and larger depositions at lower fluence range when picosecond-laser pulses were used.

Highly depth-resolved characterization of fusion-related tungsten material based on picosecond laser-induced breakdown spectroscopy

2020 ◽  
Vol 35 (12) ◽  
pp. 2867-2879
Author(s):  
Dongye Zhao ◽  
Ding Wu ◽  
Jannis Oelmann ◽  
Sebastijan Brezinsek ◽  
Qingmei Xiao ◽  
...  
Keyword(s):  
Nuclear Fusion ◽  
Picosecond Laser ◽  
Laser Induced Breakdown Spectroscopy ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown ◽  
Potential Applications ◽  
Tungsten Material

The objective of the present study has been to evaluate the potential applications of picosecond laser-induced breakdown spectroscopy (ps-LIBS) in nuclear fusion devices.

Histological characterization of age‐related skin changes following the use of picosecond laser : Low vs high energy

2020 ◽  
Vol 33 (4) ◽  
Author(s):  
Lesia Kirsanova ◽  
Elena Araviiskaia ◽  
Margarita Rybakova ◽  
Evgeny Sokolovsky ◽  
Alexey Bogantenkov ◽  
...  
Keyword(s):  
Picosecond Laser ◽  
High Energy ◽  
Skin Changes ◽  
Age Related

Spectrometric Characterization of Purified C60 and C70

1990 ◽  
Vol 206 ◽  
Author(s):  
Keith R. Lykke ◽  
Michael J. Pellin ◽  
Peter Wurz ◽  
Dieter M. Gruen ◽  
Jerry E. Hunt ◽  
...  
Keyword(s):  
Electronic Absorption ◽  
Mass Spectra ◽  
Fluorescence Spectra ◽  
Multiphoton Ionization ◽  
Negative Ions ◽  
Picosecond Laser ◽  
Laser Desorption ◽  
Signal To Noise ◽  
Neutral Species

ABSTRACTC60 and C70 were synthesized and purified according to published procedures. Both nanosecond and picosecond laser desorption from coated substrates gave copious positive and negative ions. Mass spectra (TOF and FTMS) with excellent signal to noise, showing only the C60 and C70 mass peaks, have been observed. Well-resolved isotopic structure was seen in the FTMS spectra in agreement with the natural abundance of carbon. Laser desorption and multiphoton ionization/photodissociation of the neutral species, as well as electronic absorption, FTIR, and fluorescence spectra, have been obtained.

scholarly journals Systems-Level Characterization of Microchannel Plate Detector Assemblies, using a Pulsed sub-Picosecond Laser

2012 ◽  
Vol 37 ◽  
pp. 748-756 ◽  
Author(s):  
Matthew J. Wetstein ◽  
Bernhard Adams ◽  
Matthieu Chollet ◽  
Preston Webster ◽  
Zeke Insepov ◽  
...  
Keyword(s):  
Picosecond Laser ◽  
Microchannel Plate

X-ray characterization of picosecond laser plasmas

1987 ◽  
Vol 63 (4) ◽  
pp. 253-258 ◽  
Author(s):  
O.L. Landen ◽  
E.M. Campbell ◽  
M.D. Perry
Keyword(s):  
Picosecond Laser ◽  
X Ray ◽  
Laser Plasmas

scholarly journals Characterization of a picosecond laser generated 4.5keV TiK-alpha source for pulsed radiography

2005 ◽  
Vol 76 (7) ◽  
pp. 076102 ◽  
Author(s):  
J. A. King ◽  
K. Akli ◽  
R. A. Snavely ◽  
B. Zhang ◽  
M. H. Key ◽  
...  
Keyword(s):  
Picosecond Laser

Investigation of temporal evolution of picosecond laser pulse by synchronized femtosecond laser pulse

2018 ◽  
Vol 27 (01) ◽  
pp. 1850006
Author(s):  
Yangbao Deng ◽  
Shuguang Deng ◽  
Ye Tian ◽  
Guangfu Zhang ◽  
Cuixiu Xiong
Keyword(s):  
Laser Pulse ◽  
Femtosecond Laser ◽  
Femtosecond Laser Pulse ◽  
Temporal Evolution ◽  
Coupling Effect ◽  
Picosecond Laser ◽  
Picosecond Laser Pulse ◽  
Temporal Shape ◽  
Measurement Principle

In this paper, we theoretically and experimentally investigate the initial temporal characterization and the temporal evolution of a picosecond laser pulse by a synchronized femtosecond laser pulse. After theoretically analyzing the measurement principle, we experimentally measure the initial temporal characterization of the picosecond laser pulse. Further, the temporal evolution of the picosecond laser pulse propagating in different lengths of a carbon disulfide (CS2) is measured. We find that the initial temporal shape of the picosecond laser pulse is smooth and clean. As increasing of the CS2 length, the pulse width of the picosecond laser pulse has a trend of slight narrow owing to the spatiotemporal coupling effect.

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