Proposals for the generation of angular momentum from non-uniformly polarized beams

Alonso, M. A.; Piquero, Gemma; Serna, Julio

doi:10.1016/j.optcom.2011.11.112

Cited by 6 publications

(5 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Even if standard methods [1,17,19,[45][46][47][48][49][50][51][52][53][54] utilize special optical elements and setups to generate well-refined optical singularities, the singularity-generation itself is a remarkably fundamental phenomenon. We have demonstrated the formation of generic optical singularities due to Brewster-reflection of a post-paraxial beam-field.…”

Section: Discussionmentioning

confidence: 99%

“…(topological indices respectively +1/2, −1/2, −1/2, +1, +1, −1) [1,6,7,[9][10][11][12][13][14][15][16][17][18][19]. Standard methods of generating vortex beams with embedded polarization singularities [1,17,[45][46][47][48][49][50][51][52][53][54] thus involve, in some form or the other, the inherent inhomogeneous polarization of the considered beam-field [55][56][57][58][59][60][61].…”

mentioning

confidence: 99%

See 1 more Smart Citation

Observation of Polarization Singularities in a Brewster-Reflected Paraxial Beam

Debnath

Viswanathan

2020

Conference on Lasers and Electro-Optics

View full text Add to dashboard Cite

Brewster-reflection of a post-paraxial optical beam at a plane dielectric interface unravels fundamentally significant optical singularity dynamics. We express the simulated field-component profiles of a Brewster-reflected post-paraxial beam-field via empirical functions, using which we demonstrate optical beam-shifts and formation of phase singularities. These occurrences naturally reveal the presence and complex transitional-dynamics of generic polarization-singularities-which we observe via simulation and experiments. A single reflection being the core process, our method becomes a fundamentally appealing way to generate optical singularities and to study their dynamics.

show abstract

Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

Observation of Polarization Singularities in a Brewster-Reflected Paraxial Beam

Debnath

Viswanathan

2020

Conference on Lasers and Electro-Optics

View full text Add to dashboard Cite

show abstract

“…Recently, Matsuo established the matrix calculus for cylindrical vector beams and deduced the rotation formulas for angularly variant Jones vectors and matrices on polar coordinates [11]. By using Mach-Zehnder arrangement, Alonso et al realized the generation and control of angular momentum from non-uniformly polarized beams [12]. We recognize that the conventional coordinate transformation has to be modified when the fast or slow axis of the waveplate, such as the Q-plate, is associated with the azimuthal angle.…”

Section: Introductionmentioning

confidence: 99%

Generalized Jones Calculus for Vortex, Vector, and Vortex-Vector Beam Transformations

Kuan,

Lin,

Wang

et al. 2021

Preprint

View full text Add to dashboard Cite

The work defines the general form of Jones vector and establishes the Jones matrix for polarizers, wave plates, Faraday rotators, Q-plates, and spiral phase plates. We establish the generalized Jones calculus for vortex, vector, and vortex-vector beam transformations. Systematic formalism presents the theoretical arrangements in the manipulation of the phase and polarization of the structured lights. The eigenstates and the time-reversal behaviors of optical components and systems are discussed through matrix algebra. The generalized Jones calculus is then used in the characterization of Sagnac interferometers, and the potential applications are proposed.

show abstract

“…[2][3][4][5][6][7][8][9][10][11] The usefulness of NUTP beams in the improvement of numerous applications has been largely demonstrated. To cite some examples, NUTP beams have been used in particle manipulation, 12,13 polarimetry, [14][15][16] material processing, [17][18][19] angular momentum generation, [20][21][22] optical encryption, 23 etc. Numerous methods for synthesizing NUTP beams have been proposed.…”

Section: Introductionmentioning

confidence: 99%

Simple undergraduate experiment for synthesizing and analyzing non-uniformly polarized beams by means of a Fresnel biprism

Piquero

Marcos-Muñoz

Sande

2019

American Journal of Physics

Self Cite

View full text Add to dashboard Cite

A simple scheme to synthesize non-uniform patterns of polarization across the transverse section of a beam is proposed with the standard materials in an undergraduate optics laboratory. The experiment is based on the superposition of two orthogonally polarized fields obtained by using a Fresnel biprism and dichroic polarizers. Although no interference pattern appears in the superposition area, a non-uniformly totally polarized field is synthesized. Analytic expressions for the Jones vector and Stokes parameters of the output beam are calculated and, in the process, students can cement their knowledge about the representation of polarized light with these formalisms. The experimental polarization pattern is either obtained from intensity measurements with a CCD camera or measured directly with a commercial polarimeter modified with a pinhole. This experiment will help students discover an easy way to vary the state of polarization across the transverse section of a light field. V

show abstract

Proposals for the generation of angular momentum from non-uniformly polarized beams

Cited by 6 publications

References 26 publications

Observation of Polarization Singularities in a Brewster-Reflected Paraxial Beam

Observation of Polarization Singularities in a Brewster-Reflected Paraxial Beam

Generalized Jones Calculus for Vortex, Vector, and Vortex-Vector Beam Transformations

Simple undergraduate experiment for synthesizing and analyzing non-uniformly polarized beams by means of a Fresnel biprism

Contact Info

Product

Resources

About