Results 31 to 40 of about 167,819 (52)
Novel Properties of Twisted-Light Absorption
, 2014 We discuss novel features of twisted-light absorption both by hydrogen-like atoms and by micro-particles. First, we extend the treatment of atomic photoexcitation by twisted photons to include atomic recoil, derive generalized quantum selection rules and
Afanasev, Andrei +2 more
core +2 more sources
A note: the relativistic transformations for the optical constants of media [PDF]
arXiv, 2004 The Lorentz transformations for the optical constants (electric permittivity, magnetic permeability and index of refraction) of moving media are considered.
arxiv
Quantum Theory of Superresolution for Two Incoherent Optical Point Sources
, 2016 Rayleigh's criterion for resolving two incoherent point sources has been the most influential measure of optical imaging resolution for over a century. In the context of statistical image processing, violation of the criterion is especially detrimental ...
Lu, Xiao-Ming +2 more
core +2 more sources
Introduction to microstructured optical fibers [PDF]
arXiv, 2005 This article recounts definition, classification, history, and applications of microstructured optical fibers.
arxiv
Femtosecond laser as a tool for experimental study of time invariance violation in optics [PDF]
arXiv, 2006 The experiments with weak collinear probe pulses for time reversal noninvariance study in optics are proposed and discussed.
arxiv
On negative higher-order Kerr effect and filamentation
, 2010 As a contribution to the ongoing controversy about the role of higher-order Kerr effect (HOKE) in laser filamentation, we first provide thorough details about the protocol that has been employed to infer the HOKE indices from the experiment.
A. Becker +55 more
core +4 more sources
arXiv, 2017 We introduce a new nonlinear analog optical computing concept that compresses the signal's dynamic range and realizes non-uniform quantization that reshapes and improves the signal-to-noise ratio in the digital domain.
arxiv
Frequency-swept high-repetition rate optical source [PDF]
arXiv, 2020 We propose and numerically validate an all-optical scheme to generate optical pulse trains with varying temporal pulse-to-pulse delay and pulse duration. Applying a temporal sinusoidal phase modulation followed by a shaping of the spectral phase enables us to maintain high-quality Gaussian temporal profiles.
arxiv
High-efficiency light-wave control with all-dielectric optical Huygens' metasurfaces
, 2014 Optical metasurfaces have developed as a breakthrough concept for advanced wave-front engineering enabled by subwavelength resonant nanostructures. However, reflection and/or absorption losses as well as low polarisation-conversion efficiencies pose a ...
Brener, Igal +7 more
core +1 more source
Comment on "Optical torque on small chiral particles in generic optical fields " [PDF]
arXiv, 2017 We comment on mistakes and inaccuracies of a paper by Chen et al. concerning the optical torque from generic optical fields on dipolar chiral particles, i.e. on those whose scattering is fully described by the first electric, magnetic and magnetoelectric Mie coefficients.
arxiv