Detector array for measuring far-field energy density distribution of repetitively pulsed laser

2007 ◽  
Author(s):  
Pengling Yang ◽  
Guobin Feng ◽  
Qunshu Wang ◽  
Jingjin Wang ◽  
Jianping Cheng
Keyword(s):  
Energy Density ◽  
Density Distribution ◽  
Pulsed Laser ◽  
Detector Array ◽  
Field Energy ◽  
Far Field ◽  
Energy Density Distribution ◽  
Field Energy Density

A photoelectric meter for relative energy density distribution in pulsed laser beams

1984 ◽  
Vol 27 (5) ◽  
pp. 414-415
Author(s):  
V. I. Arbekov ◽  
M. V. Ulanovskii ◽  
Ya. T. Zagorskii ◽  
A. M. Levi ◽  
A. I. Glazov
Keyword(s):  
Energy Density ◽  
Density Distribution ◽  
Pulsed Laser ◽  
Relative Energy ◽  
Laser Beams ◽  
Energy Density Distribution

Study on the Testing System of Far-Field Laser Energy Density Distribution

2012 ◽  
Vol 229-231 ◽  
pp. 1338-1342
Author(s):  
Xu Yang ◽  
Lu Song ◽  
Jin Duan
Keyword(s):  
Energy Density ◽  
Density Distribution ◽  
Measurement Errors ◽  
Laser Energy ◽  
Target Surface ◽  
Laser Spot ◽  
Laser Energy Density ◽  
Testing System ◽  
Far Field ◽  
Energy Density Distribution

This study designs and develops a set of far-field laser spot energy testing system based on energy density detecting array. Through installing energy density detectors on the characteristic location of energy density target, the practical value of laser’s energy could be adopted. Meanwhile, by the use of visible light image equipment, the energy density distribution image of laser spot with a wavelength of 532nm on target surface could be obtained. After that, the energy density of each spot on the target surface as well as the energy density distribution have been figured out by fusing the grey level of laser spot image with the practical energy value detected by laser energy probes. The result shows that this system, which is simple, reliable, and available for the far-field laser energy density measurement under all circumstances, is capable of precisely measuring the far-field laser energy distribution with more than 1km with few measurement errors.

Fabrication of Periodic Arrays of Nano-sized Si and Ni dots on SiO2 Using Linearly Polarized Nd:YAG Pulsed Laser

2007 ◽  
Vol 1059 ◽  
Author(s):  
Kensuke Nishioka ◽  
Susumu Horita
Keyword(s):  
Energy Density ◽  
Laser Beam ◽  
Density Distribution ◽  
Pulsed Laser ◽  
Incident Beam ◽  
Space Structure ◽  
Energy Density Distribution ◽  
Periodic Arrays ◽  
Beam Energy Density ◽  
Linearly Polarized

ABSTRACTPeriodic arrays of nano-sized Si and Ni dots were fabricated by only irradiating a linearly polarized Nd:YAG pulsed laser beam to Si and Ni thin films deposited on silicon dioxide (SiO2) film. The interference between an incident beam and a scattered surface wave leads to the spatial periodicity of beam energy density distribution on the surface of the irradiated samples. A thin film was melted using a laser beam, and the molten film was split and condensed owing to its surface tensile according to the periodic energy density distribution. Then, the fine lines (line and space structure) were formed periodically. After the formation of fine lines, the sample was rotated by 90°, and the laser beam was irradiated. The periodic energy density distribution was generated on the fine lines, and the lines split and condensed according to the periodic energy density distribution. Eventually, the periodically aligned nano-sized dots were fabricated on the SiO2 film.

Measurement facility for the relative radiation energy density distribution for pulse-periodic lasers

1988 ◽  
Vol 31 (10) ◽  
pp. 966-967
Author(s):  
V. I. Andreev ◽  
A. P. Palivoda ◽  
S. P. Fetisov ◽  
N. V. Shalomeeva ◽  
V. A. Yakovlev
Keyword(s):  
Energy Density ◽  
Density Distribution ◽  
Radiation Energy ◽  
Measurement Facility ◽  
Radiation Energy Density ◽  
Energy Density Distribution

scholarly journals Finite size scaling in the solar wind magnetic field energy density as seen by WIND

2002 ◽  
Vol 29 (10) ◽  
pp. 86-1-86-4 ◽  
Author(s):  
B. Hnat ◽  
S. C. Chapman ◽  
G. Rowlands ◽  
N. W. Watkins ◽  
W. M. Farrell
Keyword(s):  
Magnetic Field ◽  
Solar Wind ◽  
Energy Density ◽  
Finite Size ◽  
Field Energy ◽  
Finite Size Scaling ◽  
Size Scaling ◽  
Magnetic Field Energy ◽  
Solar Wind Magnetic Field ◽  
Field Energy Density
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