Shear band formation and cracking of a metallic glass irradiated with high energy laser pulses

1987 ◽  
Vol 22 (2) ◽  
pp. 601-606 ◽  
Author(s):  
K. Mukherjee ◽  
Narendra B. Dahotre ◽  
C. Wakade
Keyword(s):  
Shear Band ◽  
Metallic Glass ◽  
Laser Pulses ◽  
High Energy ◽  
Shear Band Formation ◽  
Band Formation ◽  
Energy Laser ◽  
High Energy Laser

Optical fibre beam delivery of high-energy laser pulses: beam quality preservation and fibre end-preparation

2000 ◽  
Vol 34 (4-6) ◽  
pp. 273-288 ◽  
Author(s):  
A. Kuhn ◽  
I.J. Blewett ◽  
D.P. Hand ◽  
P. French ◽  
M. Richmond ◽  
...  
Keyword(s):  
Optical Fibre ◽  
Beam Quality ◽  
Laser Pulses ◽  
High Energy ◽  
Energy Laser ◽  
High Energy Laser ◽  
Beam Delivery

Experimental Investigation on Underwater Opto-Acoustic Communication

2011 ◽  
Vol 143-144 ◽  
pp. 653-657
Author(s):  
Tao Liu ◽  
Jian Gan Wang ◽  
Si Guang Zong
Keyword(s):  
Acoustic Communication ◽  
Acoustic Pressure ◽  
Optical Breakdown ◽  
Laser Pulses ◽  
Acoustic Signals ◽  
High Energy ◽  
Acoustic Energy ◽  
Underwater Sound ◽  
Energy Laser ◽  
High Energy Laser

The underwater opto-acoustic communication system for directional acoustic communication between an in-air platform and a submerged platform operating is important. The paper presents a new method to solve this problem with opto-acoustic technology, which combines high-energy laser, the opto-acoustic transmitter that optical energy is converted to acoustic energy at the water surface. The laser-based transmitter provides a versatile method for generating underwater sound. The acoustic pressure is linearly proportional to the laser power. The paper designed an experimental measurement system for the opto-acoustic communication. It made experiments for study on the waveform and spectrum characteristics of opto-acoustic signals. The paper also discuss the acoustic wave after optical breakdown in water with Nd:YAG laser pulses. The opto-acoustic signals can controll by adjusting the laser's parameters. The conclusion is that the opto-acoustic communication has some technical advantages. This system presents a change in the way communicational from the air.

Transparent laser damage resistant nematic liquid crystal cell “LCNP3”

2014 ◽  
Vol 22 (3) ◽  
Author(s):  
Z. Raszewski ◽  
W. Piecek ◽  
L. Jaroszewicz ◽  
R. Dąbrowski ◽  
E. Nowinowski-Kruszelnicki ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Nematic Liquid Crystal ◽  
Laser Pulses ◽  
High Energy ◽  
Optical Path ◽  
Liquid Crystal Cell ◽  
Crystal Cell ◽  
Energy Laser ◽  
High Energy Laser ◽  
Twisted Nematic Liquid Crystal

AbstractThere exists the problem in diagnostics of dense plasma (so-called Thomson diagnostics). For this purpose the plasma is illuminated by series of high energy laser pulses. The energy of each separate pulse is as large as 3 J, so it is impossible to generate a burst of such pulses by a single laser. In this situation, the pulses are generated by several independent lasers operating sequentially, and these pulses are to be directed along the same optical path. To form an optical path with λ = 1.064 μm and absolute value of the laser pulse energy of 3 J, a special refractive index matched twisted Nematic Liquid Crystal Cell of type LCNP3, with switching on time τON smaller than 3 μs was applied.

Nanoscale multistep shear band formation by deformation-induced nanocrystallization in Zr-Al-Ni-Pd bulk metallic glass

2005 ◽  
Vol 87 (15) ◽  
pp. 151907 ◽  
Author(s):  
Junji Saida ◽  
Albertus Deny Heri Setyawan ◽  
Hidemi Kato ◽  
Akihisa Inoue
Keyword(s):  
Shear Band ◽  
Metallic Glass ◽  
Bulk Metallic Glass ◽  
Shear Band Formation ◽  
Band Formation

Compression of high-energy laser pulses below 5 fs

1997 ◽  
Vol 22 (8) ◽  
pp. 522 ◽  
Author(s):  
M. Nisoli ◽  
S. De Silvestri ◽  
O. Svelto ◽  
R. Szipöcs ◽  
K. Ferencz ◽  
...  
Keyword(s):  
Laser Pulses ◽  
High Energy ◽  
Energy Laser ◽  
High Energy Laser

Mechanical effects induced by shock waves generated by high energy laser pulses

1991 ◽  
Vol 1 (9) ◽  
pp. 1467-1480 ◽  
Author(s):  
J. Fournier ◽  
P. Ballard ◽  
P. Merrien ◽  
J. Barralis ◽  
L. Castex ◽  
...  
Keyword(s):  
Shock Waves ◽  
Laser Pulses ◽  
High Energy ◽  
Mechanical Effects ◽  
Energy Laser ◽  
High Energy Laser

Tapered metal-coated optical fibers for high-energy laser pulses delivery

1994 ◽  
Author(s):  
Alexander G. Papashvili ◽  
Vladimir A. Bogatyrjov ◽  
Konstantin M. Golant ◽  
Valery A. Kozlov ◽  
Alexander N. Perov ◽  
...  
Keyword(s):  
Optical Fibers ◽  
Laser Pulses ◽  
High Energy ◽  
Energy Laser ◽  
High Energy Laser
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