intensity 源码搜索结果, 第95页, Verysource

Focal shift of radial varying polarized Bessel-Gauss beam with r... ... m. It was found that the focal shift only can be altered considerably by the phase modulation parameter m, and the focus region intensity shape is variable with the change of the others parameters except m, turning into different shapes such as multiple ...
Video Dual Watermarking Algorithm against Geometric Attack Based... ... in video sequence is studied in depth. The human eye visual masking threshold is obtained as the maximum embedding intensity of watermark using various motion characteristics. Second, the high- and low-frequency sub-band coefficients of the contourlet ...
Pure red visible emission via three-photon excitation of colloid... ... synthesized at 260°C by the thermal decomposition method. The experimental results reveal that the Na3ZrF7:Er NPs exhibit pure red emission in the visible region under 1480 nm laser excitation, and the emission intensity is significantly influenced by t
Static light scattering properties of a ZnO nanosphere aqueous s... ... near-infrared region. The scattering properties of ZnO nanospheres suspended in water are described by employing three main parameters: the angular distribution of the scattering intensity I, the scattering extinction coefficient αscat, and the scattering
Generation of passively Q-switched fiber laser at 1 μm by using ... ... lasers (YDFLs) incorporating a molybdenum sulfide selenide (MoSSe)-based saturable absorber (SA) are demonstrated. The modulation depth and saturation intensity of the MoSSe-based SA are measured to be approximately 25.0% and 0.002 MW/cm2, respectively, ...
Avalanche boron fusion by laser picosecond block ignition with m... ... al., Laser Part. Beams 33, 607 (2015)) for the combination of the non-thermal block ignition using ultrahigh intensity laser pulses of picoseconds duration. The ultrahigh acceleration above 1020 cm s??2 for plasma blocks was theoretically and numerically ...
Accelerating ions with high-energy short laser pulses from submi... ... ionization of such targets on the nanosecond timescale. Furthermore the influence of typical fluctuations or uncertainties of the on-target intensity on ion acceleration experiments is discussed. We report how these uncertainties were reduced by improving
Effect of sample temperature on laser-induced semiconductor plas... ... -induced semiconductor (Ge and Si) plasma. The change in spectral intensity with the sample temperature indicates the change of the ... of the sample and eventually produces a higher spectral intensity. The spectral intensities are enhanced by a few times at ...
VCSEL-pumped Nd:YAG laser with 95 W average power and user-selec... ... amplifier, and a four-pass amplifier. The laser operates at 300 Hz with energies up to 317 mJ. The beam has a top-hat intensity distribution. The temporal pulse shape is flat in time, and the pulse width can be adjusted in the range of 2–6 ns.
Scalar-matrix-structured ghost imaging The features of the characteristic matrix used in linear intensity correlation reconstruction methods are directly related to the quality of ghost imaging. In order to suppress the noise caused by the off-diagonal elements in the characteristic matrix, we ...

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