High repetition rate laser ablation for vapor–liquid–solid nanowire growth

2014 ◽  
Vol 14 (4) ◽  
pp. 614-620 ◽  
Author(s):  
A. Marcu ◽  
F. Stokker ◽  
R.R. Zamani ◽  
C.P. Lungu ◽  
C. Grigoriu
Keyword(s):  
Laser Ablation ◽  
Repetition Rate ◽  
High Repetition Rate ◽  
Nanowire Growth ◽  
Vapor Liquid Solid ◽  
High Repetition ◽  
Vapor Liquid

Ultra high repetition rate (133 MHz) laser ablation of aluminum with 1.2-ps pulses

1999 ◽  
Vol 69 (7) ◽  
pp. S883-S886 ◽  
Author(s):  
M. Lapczyna ◽  
K.P. Chen ◽  
P.R. Herman ◽  
H.W. Tan ◽  
R.S. Marjoribanks
Keyword(s):  
Laser Ablation ◽  
Repetition Rate ◽  
High Repetition Rate ◽  
High Repetition

Positive Magnetisation in Carbon Nanoclusters Produced by High-Repetition-Rate Laser Ablation

2007 ◽  
Vol 998 ◽  
Author(s):  
Andrei V. Rode ◽  
Denis Arcon ◽  
Andrej Zorko ◽  
Zvonko Jaglicic ◽  
Andrew G. Christy ◽  
...  
Keyword(s):  
Laser Ablation ◽  
Spin Glass ◽  
Repetition Rate ◽  
Spin Glasses ◽  
Glass Structure ◽  
Freezing Temperature ◽  
High Repetition Rate ◽  
Zero Field ◽  
High Repetition ◽  
Carbon Nanoclusters

ABSTRACTCarbon nanoclusters produced by high-repetition-rate laser ablation of graphite and glassy carbon in Ar exhibits para- and ferromagnetic behaviour at low temperature. The results show that the degree of remanent order is strongly dependent on the magnetic history, i.e. whether the samples were cooled under zero-field or field conditions. Such behaviour is typical for a spin glass structure where the system can exist in many different roughly equivalent spin configurations. The spin-freezing temperature is unusually high (50–300 K) compared with ≤ 15 K for typical spin glasses. The maximum in the zero-field magnetic susceptibility experiments and their field dependence indicate that there is competition between ferromagnetic and antiferromagnetic exchange pathways, accounting for the spin glass behavior and/or a low-dimensionality of the system.

Electronic and magnetic properties of carbon nanofoam produced by high-repetition-rate laser ablation

2002 ◽  
Vol 197-198 ◽  
pp. 644-649 ◽  
Author(s):  
A.V. Rode ◽  
R.G. Elliman ◽  
E.G. Gamaly ◽  
A.I. Veinger ◽  
A.G. Christy ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Laser Ablation ◽  
Repetition Rate ◽  
High Repetition Rate ◽  
Electronic And Magnetic Properties ◽  
High Repetition

Boron nitride nanostructures formed by ultra-high-repetition rate laser ablation

2003 ◽  
Vol 12 (8) ◽  
pp. 1269-1274 ◽  
Author(s):  
D. Golberg ◽  
A. Rode ◽  
Y. Bando ◽  
M. Mitome ◽  
E. Gamaly ◽  
...  
Keyword(s):  
Laser Ablation ◽  
Boron Nitride ◽  
Repetition Rate ◽  
High Repetition Rate ◽  
High Repetition

scholarly journals Using A High Repetition Rate Nd: YAG Laser For Pulsed Laser Ablation Propulsion

2021 ◽  
Author(s):  
Daniel Hayek
Keyword(s):  
Laser Ablation ◽  
Repetition Rate ◽  
New Technology ◽  
Specific Impulse ◽  
Pulsed Laser ◽  
Pulsed Laser Ablation ◽  
High Repetition Rate ◽  
Test Apparatus ◽  
High Repetition ◽  
Laser Propulsion

Laser propulsion is a relatively new technology being researched for its vast potential. A test apparatus was developed to measure small forces using piezoelectric films and a developed amplifier tuned to the specific frequencies expected from the system. The system provided consistent results comparable to published values. The tests conducted in this thesis evaluated the effects of using a high repetition rate laser for laser propulsion. The results are on the micropropulsion scale, however, the findings are expected to perform similarly on a larger scale. The thrust, moment coupling coefficient, and specific impulse values were evaluated for aluminum, brass, and PVC of differing thicknesses. The results concluded that the repetition rate in fact did not have much effect on the thrust; thrust was primarily dependent on the pulse energy and the material thickness. The repetition rate was found to affect the specific impulse values; a result of the heat affected zone created by the laser ablation, thereby reducing the effective propellant used for propulsion.

Sign in / Sign up

Export Citation Format

Share Document