Results 41 to 50 of about 70,968 (286)
Creation of two vortex-entangled beams in a vortex beam collision with a plane wave
, 2012 Physics of photons and electrons carrying orbital angular momentum (OAM) is an exciting field of research in quantum optics and electron microscopy.
Ivanov, I. P.
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, 2012 Atomic-size vortex beams have great potential in probing materials' magnetic moment at atomic scales. However, the limited depth of field of vortex beams constrains the probing depth in which the helical phase front is preserved.
Bazhenov +10 more
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Vortex preserving statistical optical beams
Optics Express, 2020 We establish a general form of the cross-spectral density of statistical sources that generate vortex preserving partially coherent beams on propagation through any linear ABCD optical system. We illustrate our results by introducing a class of partially coherent vortex beams with a closed form cross-spectral density at the source and demonstrating the
Zhiheng Xu +5 more
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Periodic shedding of vortex dipoles from a moving penetrable obstacle in a Bose-Einstein condensate
, 2015 We investigate vortex shedding from a moving penetrable obstacle in a highly oblate Bose-Einstein condensate. The penetrable obstacle is formed by a repulsive Gaussian laser beam that has the potential barrier height lower than the chemical potential of ...
Kwon, Woo Jin +2 more
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Vortex Beams for Atomic Resolution Dichroism [PDF]
Microscopy and Microanalysis, 2011 Extended abstract of a paper presented at Microscopy and Microanalysis 2011 in Nashville, Tennessee, USA, August 7–August 11, 2011.
Juan C, Idrobo, Stephen J, Pennycook
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Peculiar rotation of electron vortex beams [PDF]
Ultramicroscopy, 2015 Standard electron optics predicts Larmor image rotation in the magnetic lens field of a TEM. Introducing the possibility to produce electron vortex beams with quantized orbital angular momentum brought up the question of their rotational dynamics in the presence of a magnetic field. Recently, it has been shown that electron vortex beams can be prepared
Schachinger, T. +3 more
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The geometric phase and the geometrodynamics of relativistic electron vortex beams
, 2013 We have studied here the geometrodynamics of relativistic electron vortex beams from the perspective of the geometric phase associated with the scalar electron encircling the vortex line.
Bandyopadhyay, Pratul +2 more
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Acoustic superradiance from an optical-superradiance-induced vortex in a Bose-Einstein condensate
, 2014 We consider the simultaneous scattering of an angular momentum carrying Laguerre-Gaussian light beam and an acoustic wave from an atomic Bose-Einstein condensate, under condition of optical superradiance induced vortex state.
Ghazanfari, Nader +1 more
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Experimental investigation on optical vortex tweezers for microbubble trapping
Open Physics, 2018 In this paper, we investigated the microbubble trapping using optical vortex tweezers. It is shown that the microbubble can be trapped by the vortex optical tweezers, in which the trapping light beam is of vortex beam.
Zhou Xiaoming +3 more
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Communications Physics, 2023 Air lasing is a simple and promising technique to efficiently produce coherent light in the atmosphere. Yet, its capability to obtain structured light like optical vortices or vector beams is still unexplored.
Jingsong Gao +10 more
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