Results 241 to 250 of about 190,980 (288)
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Optics Letters, 2023
In this work, we propose and demonstrate experimentally a new family of vector beams, the helico-conical vector beams (HCVBs), whose spatial degree of freedom is encoded in the helico-conical optical beams. We use Stokes polarimetry to study their properties and find that upon propagation their transverse polarization distribution ...
Edgar Medina-Segura +4 more
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In this work, we propose and demonstrate experimentally a new family of vector beams, the helico-conical vector beams (HCVBs), whose spatial degree of freedom is encoded in the helico-conical optical beams. We use Stokes polarimetry to study their properties and find that upon propagation their transverse polarization distribution ...
Edgar Medina-Segura +4 more
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Optics Letters, 2020
We consider a new type of vector beam, the vector Lissajous beams (VLB), which is of double order ( p , q ) and a generalization of cylindrical vector beams characterized by single-order p . The transverse components of VLBs have an angular relationship corresponding to Lissajous curves.
Svetlana N. Khonina +2 more
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We consider a new type of vector beam, the vector Lissajous beams (VLB), which is of double order ( p , q ) and a generalization of cylindrical vector beams characterized by single-order p . The transverse components of VLBs have an angular relationship corresponding to Lissajous curves.
Svetlana N. Khonina +2 more
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VECTOR PROTON BEAM WRITING SYSTEM
Problems of Atomic Science and Technology, 2022Vector method for scanning with focused beam of megaelectronvolt-energy in proton-beam writing is described. Vector proton-beam writing method was proven experimentally to have numerous advantages over raster method. Focused beam size and shape are measured by scanning standard copper mesh for e-beam microscopy.
Polozhii, H.E. +3 more
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2008 33rd International Conference on Infrared, Millimeter and Terahertz Waves, 2008
We present a concept for the design of photoconductive antennas which allows the generation and detection of terahertz radiation pulses of freely selectable modes. We demonstrate the principle by showing electric field distributions for vector beams, namely the lowest order Gaussian-Bessel beams. They have a donut-like intensity distribution and either
Winnerl, S. +4 more
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We present a concept for the design of photoconductive antennas which allows the generation and detection of terahertz radiation pulses of freely selectable modes. We demonstrate the principle by showing electric field distributions for vector beams, namely the lowest order Gaussian-Bessel beams. They have a donut-like intensity distribution and either
Winnerl, S. +4 more
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The vector Durnin–Whitney beam
Journal of the Optical Society of America A, 2020We show that ( E , H ) = ( E 0 , H 0 ) e i [ k 0 S ( r ) − ω t ] is an exact solution to the Maxwell
Israel Julián-Macías +4 more
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Curvilinear Poincaré vector beams
Chinese Optics Letters, 2021We develop a method for completely shaping optical vector beams with controllable amplitude, phase, and polarization gradients along three-dimensional freestyle trajectories. We design theoretically and demonstrate experimentally curvilinear Poincare vector beams that exhibit high intensity gradients and accurate state of polarization prescribed along ...
Zheng Yuan +7 more
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Cylindrical vector beam transformations and hybrid vector beams
Frontiers in Optics 2010/Laser Science XXVI, 2010Transformations of the spin and orbital parts of cylindrical vector beams through conventional optical elements is analyzed with Jones calculus and experimentally measured by Stokes polarimetry. Generation of unique hybrid vector beams is discussed.
G. Milione, R. R. Alfano
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Poynting vector and beam divergence
Journal of the Optical Society of America A, 2020Laser beam divergence was considered using the components of the Poynting vector. A physical interpretation of the real and imaginary parts of the “longitudinal” field component (along the z axis, the direction of beam propagation) is given in an exponential representation.
Vladimir, Niziev, Peter, Muys
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Frontiers in Optics + Laser Science 2023 (FiO, LS), 2023
We present a novel light field with three non-separable degrees of freedom (DoF): space, wavelength, and polarization. The beams structure is only revealed when all DoF’s are defined, analogue to decoherence in non-separable quantum systems.
Lea Kopf, Rafael Barros, Robert Fickler
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We present a novel light field with three non-separable degrees of freedom (DoF): space, wavelength, and polarization. The beams structure is only revealed when all DoF’s are defined, analogue to decoherence in non-separable quantum systems.
Lea Kopf, Rafael Barros, Robert Fickler
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On-demand tailored vector beams
Applied Optics, 2017We introduce an effective optical system to produce optical beams with arbitrary, inhomogeneous polarization states. Using our system, we are capable of generating vector beams with discretionarily chosen transverse complex fields in a straightforward way.
Benjamin Perez-Garcia +3 more
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