Results 241 to 250 of about 1,171,647 (287)
Beam quality measure for vector beams
Optics Letters, 2016 Vector beams have found a myriad of applications, from laser materials processing to microscopy, and are now easily produced in the laboratory. They are usually differentiated from scalar beams by qualitative measures, for example, visual inspection of beam profiles after a rotating polarizer.
Hend Sroor +2 more
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Vector Helmholtz–Gauss and vector Laplace–Gauss beams
Optics Letters, 2005We demonstrate the existence of vector Helmholtz-Gauss (vHzG) and vector Laplace-Gauss beams that constitute two general families of localized vector beam solutions of the Maxwell equations in the paraxial approximation. The electromagnetic components are determined starting from the scalar solutions of the two-dimensional Helmholtz and Laplace ...
Miguel A Bandres, Julio C Gutierrez-Vega
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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 ...
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 ...
Edgar Medina-Segura +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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Non-coaxial superposition of vector vortex beams
Applied Optics, 2016 Vector vortex beams are classified into four types depending upon spatial variation in their polarization vector.We have generated all four of these types of vector vortex beams by using a modified polarization Sagnac interferometer with a vortex lens ...
Gangireddy Salla +2 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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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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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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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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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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