Results 51 to 60 of about 1,072,541 (361)
Space-time wave packets localized in all dimensions
Nature Communications, 2022 Propagation-invariant wave packets confined in space and time can be useful for optical sensing, imaging, and nonlinear and quantum optics. Here the authors demonstrate control over the angular dispersion of optical wave packets in two-transverse ...
Murat Yessenov +6 more
doaj +1 more source
A SHARP view of H0LiCOW: H0 from three time-delay gravitational lens systems with adaptive optics imaging [PDF]
Monthly notices of the Royal Astronomical Society, 2019 We present the measurement of the Hubble constant, H0, with three strong gravitational lens systems. We describe a blind analysis of both PG 1115+080 and HE 0435−1223 as well as an extension of our previous analysis of RXJ 1131−1231.
G. Chen +22 more
semanticscholar +1 more source
Optical Chirality in Dispersive and Lossy Media [PDF]
Physical Review Letters, 2018 Several dynamical properties such as energy, momentum, angular momentum, and optical helicity have been recently reexamined in dispersive and lossless media. Here, we address a parallel derivation for the optical chirality, extending it so as to include dissipative effects as well.
Vázquez-Lozano, Juan Enrique +1 more
openaire +5 more sources
Air-core photonic band-gap fibers: the impact of surface modes
, 2004 We study the dispersion and leakage properties for the recently reported low-loss photonic band-gap fiber by Smith et al. [Nature 424, 657 (2003)]. We find that surface modes have a significant impact on both the dispersion and leakage properties of the ...
Koshiba, M. +2 more
core +1 more source
Nature Communications, 2023 Light propagates in various ways depending on environment, including uniform medium, surface/interface and photonic crystals, which appears ubiquitously in daily life and has been exploited for advanced optics technology.
Xing-Xiang Wang +5 more
doaj +1 more source
Ultrabroadband nonlinear optics in nanophotonic periodically poled lithium niobate waveguides [PDF]
Optica, 2019 Quasi-phasematched interactions in waveguides with quadratic nonlinearities enable highly efficient nonlinear frequency conversion. In this article, we demonstrate the first generation of devices that combine the dispersion-engineering available in ...
M. Jankowski +8 more
semanticscholar +1 more source
Optics Express, 2021 A planar and broadband cholesteric liquid crystal (CLC) lens is designed, fabricated, and hybridized with a refractive lens to form a catadioptric pancake lens for virtual reality (VR) displays.
Yannanqi Li +6 more
semanticscholar +1 more source
Diffusion of optical pulses in dispersion-shifted randomly birefringent optical fibers
, 2004 An effect of polarization-mode dispersion, nonlinearity and random variation of dispersion along an optical fiber on a pulse propagation in a randomly birefringent dispersion-shifted optical fiber with zero average dispersion is studied.
Abdullaev +27 more
core +1 more source
, 2017 We present Keck/OSIRIS adaptive optics observations with 150-400 pc spatial sampling of 7 turbulent, clumpy disc galaxies from the DYNAMO sample ($0 ...
Abraham, R. +7 more
core +1 more source
Stable propagation of pulsed beams in Kerr focusing media with modulated dispersion
, 2004 We propose the modulation of dispersion to prevent collapse of planar pulsed beams which propagate in Kerr-type self-focusing optical media. As a result, we find a new type of two-dimensional spatio-temporal solitons stabilized by dispersion management ...
Michinel, Humberto +3 more
core +1 more source