Results 11 to 20 of about 7,684 (263)
Optical Vortex Brillouin Laser
AbstractOptical vortices, which have been extensively studied over the last decades, offer an additional degree of freedom useful in many applications, such as optical tweezers and quantum control. Stimulated Brillouin scattering (SBS), providing a narrow linewidth and a strong nonlinear response, has been used to realize quasi‐continuous wave lasers ...
Zeng, X. +7 more
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The optical vortex (OV) beams characterized by orbital angular momentum (OAM) possess ubiquitous applications in optical communication and nanoparticle manipulation.
Yue Liu +8 more
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Divergence of optical vortex beams [PDF]
4 pages, 4 ...
Reddy, Salla Gangi +5 more
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Real-time phase measurement of optical vortex via digital holography
Real-time phase measurement is of great value to study the evolution of optical vortex. However, it cannot be recorded in real time due to the limitation of the exposure time of the recording device in the experiment. Therefore, based on the temporal and
Huaibin Qiu +5 more
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Abrupt autofocusing performance of a circular Airyprime beam with vortex pairs
Abrupt autofocusing performance of a circular Airyprime beam (CAPB) with vortex pairs propagating in free space is investigated. Here the vortex pairs are off-axis by default.
Wen-Song Dan +6 more
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Using the two-dimensional nonlinear Schrödinger equation, the collapse dynamics of vortex beams in a Kerr medium with refractive index modulation and parity–time (PT) symmetric lattices are explored. The critical power for the collapse of vortex beams in
Gang Yao, Yuhua Li, Rui-Pin Chen
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Optical vortices generically arise when optical beams are combined. Recently, we reported how several laser beams containing optical vortices could be combined to form optical vortex loops, links and knots embedded in a light beam (Leach et al 2004 ...
Dennis, MR +13 more
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Vortex Beam in a Turbulent Kerr Medium for Atmospheric Communication
The dynamics of the topological charge of a vortex optical beam propagating in turbulent air while accounting for the cubic nonlinearity is theoretically considered.
Andrey D. Bulygin +2 more
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Vortex solitons in moiré optical lattices
We show that optical moiré lattices enable the existence of vortex solitons of different types in self-focusing Kerr media. We address the properties of such states both in lattices having commensurate and incommensurate geometries (i.e., constructed with Pythagorean and non-Pythagorean twist angles, respectively), in the different regimes that occur ...
Sergey K. Ivanov +3 more
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Theory of Optical Trapping by an Optical Vortex Beam [PDF]
We propose a theory to explain optical trapping by optical vortices (OVs), which are emerging as important tools to trap mesoscopic particles. The common perception is that the trapping is solely due to the gradient force and that it may be characterized by three real force constants.
Ng, Jack, Lin, Zhifang, Chan, Che Ting
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