On-chip sampling of optical fields with attosecond resolution
Sign Up to like & getrecommendations! Published in 2021 at "Nature Photonics"
DOI: 10.1038/s41566-021-00792-0
Abstract: We demonstrate an on-chip, optoelectronic device capable of sampling arbitrary, low-energy, near-infrared waveforms under ambient conditions with sub-optical-cycle resolution. Our detector uses field-driven photoemission from resonant nanoantennas to create attosecond electron bursts that probe the… read more here.
Keywords: chip sampling; resolution; optical fields; near infrared ... See more keywords
Imaging optical fields below metal films and metal-dielectric waveguides by a scanning microscope.
Sign Up to like & getrecommendations! Published in 2017 at "Journal of applied physics"
DOI: 10.1063/1.5002071
Abstract: Laser scanning confocal fluorescence microscopy (LSCM) is now an important method for tissue and cell imaging when the samples are located on the surfaces of glass slides. In the past decade, there has been extensive… read more here.
Keywords: metal films; nano optical; metal; imaging optical ... See more keywords
Few-cycle optical-field-induced photoemission from biased surfaces: An exact quantum theory
Sign Up to like & getrecommendations! Published in 2021 at "Physical Review B"
DOI: 10.1103/physrevb.103.085410
Abstract: Photoemission driven by ultrafast optical fields enables spatiotemporal control of electron motion with extremely high precision. Here, we present a quantum model for ultrafast photoelectron emission from a dc-biased surface induced by laser pulses of… read more here.
Keywords: field; optical fields; photoemission; optical field ... See more keywords
Unsupervised learning polarimetric underwater image recovery under nonuniform optical fields.
Sign Up to like & getrecommendations! Published in 2021 at "Applied optics"
DOI: 10.1364/ao.432994
Abstract: Turbid media will lead to a sharp decline in image quality. Polarization imaging is an effective method to obtain clear images in turbid media. In this paper, we propose an improved method that combines unsupervised… read more here.
Keywords: optical fields; nonuniform optical; unsupervised learning; polarization ... See more keywords
Chiro-optical fields with asymmetric orbital angular momentum and polarization.
Sign Up to like & getrecommendations! Published in 2022 at "Optics express"
DOI: 10.1364/oe.449884
Abstract: In this paper, we proposed a flexible method for generating asymmetric chiro-optical fields. Different from most of the chiro-optical fields superimposed by vortex beams which are rotationally symmetric, the asymmetric chiro-optical field has a locally… read more here.
Keywords: optical field; optical fields; chiro optical; polarization ... See more keywords
Transversely oriented cylindrically polarized optical fields.
Sign Up to like & getrecommendations! Published in 2022 at "Optics express"
DOI: 10.1364/oe.455109
Abstract: Cylindrical vector (CV) beams have nonuniform polarization vector distribution with a singularity line directed along the optical axis. In this paper, we propose a method to synthesize transversely oriented cylindrically polarized optical fields in the… read more here.
Keywords: transversely oriented; polarized optical; cylindrically polarized; optical fields ... See more keywords
Temporal effect of the spin-to-orbit conversion in tightly focused femtosecond optical fields.
Sign Up to like & getrecommendations! Published in 2023 at "Optics express"
DOI: 10.1364/oe.482358
Abstract: Spin and orbital angular momenta are two of the most fundamental physical quantities that describe the complex dynamic behaviors of optical fields. A strong coupling between these two quantities leads to many intriguing spatial topological… read more here.
Keywords: orbit conversion; orbit; spin orbit; optical fields ... See more keywords