Broadband control of topological–spectral correlations in space–time beams

M Piccardo, M de Oliveira, VR Policht, M Russo… - Nature …, 2023 - nature.com
The synthesis of ultrashort pulses with simultaneously tailored spatial and temporal
properties opens new horizons in multimode photonics, especially when the spatial degree …

Multispectral management of the photon orbital angular momentum

M Ghadimi Nassiri, E Brasselet - Physical review letters, 2018 - APS
We report on a programmable liquid crystal spatial light modulator enabling independent
orbital angular momentum state control on multiple spectral channels. This is done by using …

Scene-adaptive spatially channeled imaging Mueller polarimeter

JS Tyo, OG Rodríguez-Herrera, C Flannery, J Kurtz… - Optics …, 2023 - opg.optica.org
A spatially adaptive Mueller matrix imaging polarimeter is described, simulated, and
demonstrated with preliminary experiments. The system uses a spatial light modulator (SLM) …

Spin-to-orbital angular momentum mapping of polychromatic light

M Rafayelyan, E Brasselet - Physical Review Letters, 2018 - APS
Reflective geometric phase flat optics made from chiral anisotropic media recently unveiled
a promising route towards polychromatic beam shaping. However, these broadband …

Ultrashort vortex from a Gaussian pulse–An achromatic-interferometric approach

DN Naik, NA Saad, DN Rao, NK Viswanathan - Scientific reports, 2017 - nature.com
The more than a century old Sagnac interferometer is put to first of its kind use to generate
an achromatic single-charge vortex equivalent to a Laguerre-Gaussian beam possessing …

Achromatic orbital angular momentum generator

F Bouchard, H Mand, M Mirhosseini… - New Journal of …, 2014 - iopscience.iop.org
We describe a novel approach for generating light beams that carry orbital angular
momentum (OAM) by means of total internal reflection in an isotropic medium. A continuous …

Broadband Achromatic Transmission–Reflection‐Integrated Metasurface Based on Frequency Multiplexing and Dispersion Engineering

Z Zhang, J Wang, M Pu, X Ma, C Huang… - Advanced Optical …, 2021 - Wiley Online Library
Transmission–reflection‐integrated metasurfaces (TRIMs) provide an effective avenue to
realize functionality integration and miniaturization of imaging and communication systems …

Vectorial vortex generation and phase singularities upon Brewster reflection

R Barczyk, S Nechayev, MA Butt, G Leuchs, P Banzer - Physical Review A, 2019 - APS
We experimentally demonstrate the emergence of an azimuthally polarized vectorial vortex
beam with a phase singularity upon Brewster reflection of focused circularly polarized light …

Determination of the polarization states of an arbitrary polarized terahertz beam: Vectorial vortex analysis

T Wakayama, T Higashiguchi, H Oikawa, K Sakaue… - Scientific reports, 2015 - nature.com
Vectorial vortex analysis is used to determine the polarization states of an arbitrarily
polarized terahertz (0.1–1.6 THz) beam using THz achromatic axially symmetric wave (TAS) …

Demonstration of a terahertz pure vector beam by tailoring geometric phase

T Wakayama, T Higashiguchi, K Sakaue, M Washio… - Scientific reports, 2018 - nature.com
We demonstrate the creation of a vector beam by tailoring geometric phase of left-and right-
circularly polarized beams. Such a vector beam with a uniform phase has not been …