Nonlinear imaging with all-dielectric metasurfaces.
Sign Up to like & getrecommendations! Published in 2020 at "Nano letters"
DOI: 10.1021/acs.nanolett.0c01105
Abstract: Nonlinear metasurfaces incorporate many of the functionalities of their linear counterparts such as wavefront shaping but simultaneously they perform nonlinear optical transformations. This dual functionality leads to a rather unintuitive physical behavior which is still… read more here.
Keywords: imaging dielectric; nonlinear imaging; dielectric metasurfaces;
Nonlinear imaging and vibrational spectroscopic analysis of cellulosic fibres treated with COEX® flame-retardant for tapestry preservation
Sign Up to like & getrecommendations! Published in 2022 at "RSC Advances"
DOI: 10.1039/d2ra02384a
Abstract: Cellulose-based fabrics are widely used in the preservation and storage of historic tapestries. Their ease of flammability is a serious concern that greatly limits their applications and requires the development of effective and safe flame-retardant… read more here.
Keywords: nonlinear imaging; flame; flame retardant; vibrational spectroscopic ... See more keywords
Bayesian Inversion for Nonlinear Imaging Models Using Deep Generative Priors
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Computational Imaging"
DOI: 10.1109/tci.2023.3236155
Abstract: Most modern imaging systems incorporate a computational pipeline to infer the image of interest from acquired measurements. The Bayesian approach to solve such ill-posed inverse problems involves the characterization of the posterior distribution of the… read more here.
Keywords: generative priors; bayesian inversion; imaging models; deep generative ... See more keywords
Nonlinear imaging of nanostructures using beams with binary phase modulation.
Sign Up to like & getrecommendations! Published in 2017 at "Optics express"
DOI: 10.1364/oe.25.010441
Abstract: We demonstrate nonlinear microscopy of oriented nanowires using excitation beams with binary phase modulation. A simple and intuitive optical scheme comprising a spatial light modulator gives us the possibility to control the phase across an… read more here.
Keywords: phase; beams binary; nonlinear imaging; binary phase ... See more keywords
Lock-in detector for accelerated nonlinear imaging.
Sign Up to like & getrecommendations! Published in 2021 at "Optics letters"
DOI: 10.1364/ol.432353
Abstract: We show that accelerated nonlinear imaging, such as stimulated Raman scattering and pump-probe imaging, is enabled by an order of magnitude reduction of data acquisition time when replacing the exponentially-weighted-moving-average low-pass filter in a lock-in… read more here.
Keywords: moving average; lock; lock detector; detector accelerated ... See more keywords