The results from the experiment and the simulation have good consistency. The simulation and experiment results can be applied for the designs of high-power laser, laser beam quality measurement, and laser-launching systems. 展开 关键词: Laser characteristic Beam quality factor (M2 Aberrations ...
except the laser parameters. An overview of the varied parameters is given in Table3. In order to reduce the number of experiments required, two sets of experiments have to be performed: In experiment A, the effect of air cooling, number of breaks and pulse duration is investigated...
Figure 12.Parameters of a Gaussian laser beam. [17]I(r,z)=2Pπw2(z)exp(−2r2w2(z)) withw(z) =w0[1 + (z/z0)2]1/2wherez0= πw20/λ, called the Rayleigh range,w0being the beamwaist radius occurring atz= 0, andr2=x2+y2. If a thin lens of focal lengthf, with the ...
NAeff, of the trapping beam. A diaphragm was placed at an optical equivalent to the entrance pupil of the NA = 1.3 objective (of focal lengthf′obj) to modify the diameter of the beam,Dbeam, such that: NAeff = Dbeam/2 f′obj. The measurements were critically dependent on...
parameters of femtosecond laser is obtained by fabricating microgrooves under different experimental conditions,based on line-scanning experiment.Results reveal that the remarkable improvement in the surface quality of the fabricated microgrooves could be achieved by increasing the number of laser scans,...
摘要: Recommendations for choosing the optimal parameters of a laser ultrasound generator from the standpoint of flaw detection are developed on the basis of the results of experiments.关键词: materials science instrumentation, including nuclear and particle detectors defects detection ultrasonic waves ...
The M 2 of a high-power fiber laser is measured by a beam quality analyzer when the laser transmits through a high absorption red glass with different output power. The results from the experiment and the simulation have good consistency. The simulation and experiment results can be applied ...
[93]. The learning agent can learn an effective control policy of three degrees parameters (the energy of the pump pulse, the numerical aperture of the focused beam, and the position of the nonlinear plate concerning the beam waist), achieving stable and broadband WLC generation experimentally (...
b, Photography of the experiment with the second harmonic of the laser beam used to visualize the laser path. Extended Data Fig. 2 Locations of the different measuring equipments. The Säntis lightning measurement system consists of two fast electric field sensors, a field mill, three full HD...
We perform 2D PIC simulations for the J-KAREN-P experiment using an open simulation code EPOCH30. We fix the laser parameters based on the experimental conditions, and linearly polarized Gaussian beam in simulation plane. We consider the target ionization with the laser electric field via barrier...