Results 51 to 60 of about 358,541 (195)

Effects of misalignments in the optical vortex transformation performed by holograms with embedded phase singularity

, 2010
Spatial characteristics of diffracted beams produced by a "fork" hologram from an incident circular Laguerre-Gaussian beam whose axis differ from the hologram optical axis are studied theoretically.
A.Ya. Bekshaev, Allen, Anan'ev, Anzolin, Anzolin, Basistiy, Basistiy, Bazhenov, Bekshaev, Bekshaev, Bekshaev, Bekshaev, Bekshaev, Berry, Berry, Born, Dennis, Franke-Arnold, Gibson, He, Heckenberg, Jack, Janke, Karimi, Karimi, Kotlyar, Kotlyar, Leach, Liu, Mair, Mawet, Molina-Terriza, Moreno, Nieminen, Osorio, Padgett, Pas'ko, Prudnikov, Prudnikov, Rozas, S.V. Sviridova, Sacks, Simpson, Slussarenko, Soskin, Swartzlander, Swartzlander, Tamburini, Wang   +48 more
core   +1 more source

Measuring the translational and rotational velocity of particles in helical motion using structured light [PDF]

, 2014
We measure the rotational and translational velocity components of particles moving in helical motion using the frequency shift they induced to the structured light beam illuminating them.
Belmonte, Aniceto, Hermosa, Nathaniel, Rosales-Guzmán, Carmelo, Torres, Juan P.   +3 more
core   +3 more sources

Spin-orbit interaction in quasi-monochromatic singular beams

Компьютерная оптика
It is shown that the magnitude of the spin-orbit coupling is the energy efficiency of energy transfer between orthogonally polarized beam components. The energy efficiency changes as the Gaussian beam propagates through the anisotropic crystal.
Y.A. Egorov, A.F. Rubass
doaj   +1 more source

Sensitivity Approach of Optical Sensors of Cholesterol Detection through Gaussian Beam and Quasi-Gaussian Beam

Jurnal Penelitian Fisika dan Aplikasinya, 2019
Sensitivity is the comparison result between changes in output signal intensity and changes in input signal shift sensor. The purpose of this study was to analyze the sensitivity of fiber optic sensors using mathematical analysis through the Gaussian ...
Mohammad Budiyanto, Mohamad Yasin, Sulaiman Wadi Harun   +2 more
doaj   +1 more source

Interferometry of a Single Nanoparticle Using the Gouy Phase of a Focused Laser Beam [PDF]

, 2007
We provide a quantitative explanation of the mechanism of the far-field intensity modulation induced by a nanoparticle in a focused Gaussian laser beam, as was demonstrated in several recent direct detection studies.
Arbouet, Batchelder, Berciaud, Bialkowski, Bjorklund, Bohren, Dickson, Feng, Gerhardt, Gouy, Hwang, Ignatovich, Jackson, Jacobsen, Jaesuk Hwang, Lindfors, Mikhailovsky, Moerner, Moerner, Nie, Orrit, Plakhotnik, Plakhotnik, Siegman, Smartt, Stoller, Uchiyama, Van de Hulst, van Dijk, W.E. Moerner, Weiss, Xie, Yariv   +32 more
core   +2 more sources

Tailoring Large Asymmetric Laguerre–Gaussian Beam Array Using Computer-Generated Holography

Photonics, 2023
Laguerre–Gaussian beams are structured light beams with a donut-shaped symmetric intensity profile and a helical phase profile. The beam profile is defined by a quantized parameter known as the mode number which extends to infinity.
Sumit Kumar Singh, Yoshikazu Adachi, Kenji Kinashi, Naoto Tsutsumi, Wataru Sakai, Boaz Jessie Jackin   +5 more
doaj   +1 more source

Effects of Anisotropic Turbulent Ocean on Propagation of Asymmetric Bessel-Gaussian Beam

IEEE Photonics Journal
Aiming at the propagation of asymmetric vortex beam, we investigate the spreading and wander characteristics of asymmetric Bessel-Gaussian beam in oceanic turbulence. Based on the cross-spectral density and Wigner distribution function of beam field, the
Lin Yu, Zhecheng Zhang, Yixin Zhang, Lifa Hu   +3 more
doaj   +1 more source

Higher order mode beams mitigate halos in high intensity proton linacs

Physical Review Accelerators and Beams, 2017
High intensity proton linacs (HIPLs) for applications such as Accelerator Driven Reactor Systems (ADRS) have serious beam dynamics issues related to beam halo formation.
Abhishek Pathak, Srinivas Krishnagopal
doaj   +1 more source

Surfaces roughness effects on the transmission of Gaussian beams by anisotropic parallel plates

, 2003
Influence of the plate surfaces roughness in precise ellipsometry experiments is studied. The realistic case of a Gaussian laser beam crossing a uniaxial platelet is considered.
Azarova V V, Bass F G, Bennett J M, Bousquet P, Brossel J, Celli V, Church E L, Church E L, Depine R A, Dupparé A, Elson J M, Fabian Zomer, Folcia L C, Friedman B, Hernández-Rodríguez C, Hill N R, Kremers M, Maradudin A A, Maradudin A A, Mills D L, Mills D L, Mochàn W L, Moxon J R L, Moxon J R L, Mukunda N, Nee S F, Ogilvy J A, Ortega J, Poirson J, Rasigni G, Siegman A E, Simon J, Tayeb G, Thorsos E I, Yeh P, Zomer F   +35 more
core   +2 more sources

ABCD matrix for reflection and refraction of laser beam at tilted concave and convex elliptic paraboloid interfaces and studying laser beam reflection from a tilted concave parabola of revolution [PDF]

Journal of Electrical and Computer Engineering Innovations, 2015
Studying Gaussian beam is a method to investigate laser beam propagation and ABCD matrix is a fast and simple method to simulate Gaussian beam propagation in different mediums.
M. Mansour Abadi, Z. Ghassemlooy, D. Smith, W. Pang Ng   +3 more
doaj   +1 more source