Bekshaev A.Ya., Karamoch A.I., Vasnetsov M.V., Pas'ko V.A., Soskin M.S. "Structure of optical vortices produced by holographic gratings with "fork" geometry: Kummer beams", arXiv:0906.2619 [physics.optics].Bekshaev A, Karamoch A 2009 arXiv preprint arXiv:0906.2619...
This is not the case of speckle produced by structured light beams of non-homogeneous intensity and phase distribution. Pioneering studies along this direction have restricted to the specific case of optical vortices characterised by a ring-like intensity distribution and a helical phase of the form...
et al. Twisted focusing of optical vortices with broadband flat spiral zone plates. Adv. Opt. Mater. 2, 1193 (2014). Acknowledgements This work was sponsored by the NTU-NAP Start-Up Grant, Singapore Ministry of Education under Grant No. MOE2015-T2-1-070 and MOE2011-T3-1-005. Scientific...
We analyze numerically the femtosecond filamentation of a vortex beam with the topological chargem= 1 at wavelength λ0= 1800 nm in fused silica under anomalous group velocity dispersion conditions. We show that, as a pulse with a fivefold excess of its power over the critical power propagates...
Advanced computational fluid dynamic calculations have confirmed the formation of vortices in the unit cell of the Schwartz P lattices because of the steep variation of the cross-section area, justifying the highest Péclet number observed for this kind of catalyst structure [40]. For the FCC ...
For testing in a realistic telecom system, the engineers mounted the laser in a butterfly package along with a semiconductor optical amplifier and an electro-absorption modulator chip. They coupled the package output into 300 km of standard single-mode fiber and conducted transmission tests at 2.5...
GTP hydrolysis and dynamic turnover are nevertheless essential for spatial regulation of Z-rings by accessory proteins that also mediate remodeling of FtsZ filaments into highly curved bundles and vortices [25, 26]. In contrast to bacterial FtsZ, the in vitro assembled plant FtsZ1 and FtsZ2 ...
Loss is the major limitation, and selection of low-loss materials and suitable operating wavelengths has a significant impact on performance. The influence of the variables is presented, and vortices are shown to exist.关键词: Image formation theory Optical materials Metal optics Thin films, optical...
Application of a New Algebraic Structure-Based Model to Rotating Turbulent Flows THE STRUCTURE-BASED ALGEBRAIC STRESS MODEL The eddy-axis concept (Kassinos and Reynolds, 1994) is used to relate theReynolds stressand the structure tensors to parameters of a hypothetical turbulent eddy field. Each edd...
High-resolution wide-field standing-wave surface plasmon resonance fluorescence microscopy with optical vortices. Appl. Phys. Lett. 97, 241109 (2010). Article ADS Google Scholar Wang, Q. et al. Subwavelength-sized plasmonic structures for wide-field optical microscopic imaging with super-resolution....