Results 21 to 30 of about 464,591 (286)
Calculation of the intensity at the sharp focus of a cylindrical vector beam by three methods
Компьютерная оптика, 2023 We conduct a comparative analysis of diffraction fields upon sharply focusing vortex and non-vortex incident beams, calculated using three non-paraxial methods. The methods employed are a finite difference time domain (FDTD) method, a Rayleigh–Sommerfeld
A.G. Nalimov +2 more
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Electro-Optic Modulation of Higher-Order Poincaré Beam Based on Nonlinear Optical Crystal
Photonics, 2022 Vector beams (VBs) have spatially inhomogeneous polarization states distribution and have been widely used in many fields. In this paper, we proposed a method to modulate polarization states of higher-order Poincaré (HOP) beams and designed a system ...
Lu Han +5 more
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, 2021 It is well known that the trajectory of a light beam can curve if the medium in which the beam propagates is inhomogeneous or if the local spacetime is curved. In this paper we present a third possibility and show that a properly-prepared optical beam follows a curved trajectory even in free space where the spacetime is locally flat.
Nichols, J. M. +2 more
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Two-Dimensional Quasi-Periodic Diffraction Properties of the Scalar and Vector Optical Fields
Photonics, 2023 As is known, quasi-periodicity attracts great attention in many scientific regions. For instance, the discovery of the quasicrystal was rewarded the Nobel Prize in 2011, leading to a series of its applications.
Yue Pan +6 more
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New Journal of Physics, 2023 Vector beams with spatially varying polarization states have wide application prospects. Convenient and feasible generation of compact vector beams become important for the applications in integrated optics and optical communication.
Zhiyuan Yue +4 more
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Vector Reflectometry in a Beam Waveguide [PDF]
, 2011 We present a one-port calibration technique for characterization of beam waveguide components with a vector network analyzer. This technique involves using a set of known delays to separate the responses of the instrument and the device under test.
Bennett, Charles L. +3 more
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Entangled vector vortex beams [PDF]
Physical Review A, 2016 Light beams having a vectorial field structure, or polarization, that varies over the transverse profile and a central optical singularity are called vector vortex (VV) beams and may exhibit specific properties such as focusing into "light needles" or rotation invariance.
D'Ambrosio, Vincenzo +6 more
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Photonics, 2022 A novel experimental setup for the generation of arbitrary vector beams is proposed. The system major includes two reflective liquid crystal spatial light modulators (RLC-SLM) and a polarizing beam splitting prism. Moreover, this method is not limited by
Zhiyu Liu +9 more
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Nonlinear vectorial two-beam coupling and forward four-wave mixing in photorefractive materials [PDF]
, 1986 We present an exact solution of a nonlinear vector analysis of two-beam coupling and forward four-wave mixing in photorefractive ...
Cronin-Golomb, Mark +3 more
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AIP Advances, 2023 In recent years, vector beams, which have greater control freedom due to their non-uniform spatial polarization distribution, have received extensive attention from scholars.
Chencheng Wang +6 more
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