Results 51 to 60 of about 19,525 (303)
Chiral Phase Change Nanomaterials
Advanced Functional Materials, EarlyView.This work demonstrates reversible, non‐volatile phase transitions in chiral Ge2${\rm Ge}_2$Sb2${\rm Sb}_2$Te5${\rm Te}_5$ (GST) nanohelices for high‐speed optical modulation of chirality and dynamic control of the state of polarization (SOP). The chiral nanostructures are fabricated using a highly directional, wafer‐scale physical vapor deposition ...
Joshua A. Burrow +11 more
wiley +1 more source
Weak measurements with orbital-angular-momentum pointer states [PDF]
, 2012 Weak measurements are a unique tool for accessing information about weakly interacting quantum systems with minimal back action. Joint weak measurements of single-particle operators with pointer states characterized by a two-dimensional Gaussian ...
Puentes, G. +2 more
core +1 more source
Orbital angular momentum of the spiral beams [PDF]
Компьютерная оптика, 2019 At first sight, any rotation generates some angular momentum (it is true for a solid body). But these characteristics (rotation and orbital angular momentum) are rather different for optics and mechanics.
Vladimir Volostnikov
doaj +1 more source
Orbital angular momentum at small x [PDF]
Journal of High Energy Physics, 2019 AbstractWe determine the small Bjorkenxasymptotics of the quark and gluon orbital angular momentum (OAM) distributions in the proton in the double-logarithmic approximation (DLA), which resums powers ofαsln2(1/x) withαsthe strong coupling constant. Starting with the operator definitions for the quark and gluon OAM, we simplify them at smallx, relating ...
openaire +3 more sources
Advanced Functional Materials, EarlyView.In this work, we highlight a unique material platform capable of producing three distinct room temperature (RT) photoluminescence (PL) resonances from spatially separated regions composed of a heterobilayer (HBL), a homobilayer (HoBL), and an heterotrilayer (HTL) transition metal dichalcogenide (TMD) heterostructures configuration on a highly ...
Bhabani Sankar Sahoo +8 more
wiley +1 more source
Study of the propagation and detection of the orbital angular momentum of light for astrophysical applications [PDF]
, 2013 The aim of this work is to study the propagation of orbital angular momentum (OAM) of light for astrophysical applications and a method for OAM detection with optical telescopes. The thesis deals with the study of the orbital angular momentum (OAM) as a
Sponselli, Anna
core
Ground-state phase diagram of a spin-orbital-angular-momentum coupled Bose-Einstein condensate [PDF]
, 2019 By inducing a Raman transition using a pair of Gaussian and Laguerre-Gaussian laser beams, we realize a Rb87 condensate whose orbital angular momentum (OAM) and its internal spin states are coupled.
Tianyou Gao (14413392) +10 more
core +1 more source
Orbital-angular-momentum dependent speckles for spatial mode sorting and multiplexed data transmission [PDF]
, 2023 Characterizing the orbital angular momentum (OAM) of a vortex beam is critically important for OAM-encoded data transfer. However, in typical OAM-based applications where vortex beams transmit through diffusers, the accompanying scattering effect tends ...
Anderson S. L. Gomes (9046113) +7 more
core +1 more source
Advanced Functional Materials, EarlyView.Photoaligned and photopatterned liquid crystal platforms provide programmable control of optical phase, polarization, and spin‐orbit interactions, enabling compact generation of structured light and complex wavefronts. This review highlights how tailored molecular orientations transform simple beams into designed optical fields, opening versatile ...
Le Zhou +6 more
wiley +1 more source
Generation and manipulation of laser beams carrying orbital angular momentum for classical and quantum information applications [PDF]
, 2009 Light orbital angular momentum (OAM) has been recognized as a new promising resource for classical and quantum information applications. In contrast to the spin angular momentum, the OAM is an inherently multidimensional.
Karimi, Ebrahim
core