Here we introduce a quantitative beam quality measure for vector beams and demonstrate it on cylindrical vector vortex beams. We show how a single measure can be defined for the vector quality, from 0 (purely scalar) to 1 (purely vector). Our measure is derived from a quantum toolkit, ...
The beam quality of vectorial nonparaxial Hermite-Laguerre-Gaussian beams [J]. Acta Phys. Sin. ( 康小平,何仲,吕百达. 矢量非傍轴厄米-拉 盖尔-高斯光束的光束质量. 物理学报) ,2006,55: 4569-- 4574.康小平,何仲,吕百达. 矢量非傍轴厄米-拉盖尔-高斯光束的光束质量[J]. 物理学报. 2006(09)...
We demonstrate a comprehensive quantitative analysis of vector beam states (VBSs) by using a vector field reconstruction (VFR) technique integrating interferometry and imaging polarimetry, where the analysis is given by a cylindrically polarized Laguerre–Gaussian (LG) mode expansion of VBSs. From test...
Vector-vortex beams, having both phase and polarization singularities, are of great interest for a variety of applications. Generally, such beams are produced through systematic control of phase and polarization of the laser beam, typically external to the source. However, efforts have been made to...
10.Study on the Singular Value Decomposition on Laser Beam Quality Measure激光光束质量参数测量中的奇异值分解 11.The influence of thermal effects in a beam control system and spherical aberration on the laser beam quality光束控制系统热效应与球差对激光光束质量的影响 12.The application of Hartmann-Sha...
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Wavelength tunable, dual-wavelength (1030 and 1050 nm) laser oscillation has been achieved for vector-vortex beams with topological charges of 8, 9, and 10. The laser beam quality factor M close to the theoretical value (l + 1) has been achieved for LG0,l vector-vortex beams with ...
ideal case, there is nointensity modulation, only polarization modulation. In order to measure a conventional FT-IRabsorption spectrum, one can insert apolarizer, say in the vertical position, and the beam is converted from polarization modulation to intensity modulation. Maximum intensity occurs when...
The latest technological innovations of DualBeam technology, along with our comprehensive software solutions and application expertise, enable fast and easy preparation of site-specific, high-quality S/TEM (scanning/transmission electron microscopy) samples for a wide range of materials. Thermo Scientific...
Therefore as a further measure, postfilters are often employed. In this chapter, we have introduced a postfiltering technique based on PSD estimation in beamspace to address this problem. View chapterExplore book Cognitive beamforming for spectral coexistence of hybrid satellite systems Shree Krishna ...