Fighting against fast speckle decorrelation for light focusing inside live tissue by photon frequency shifting [PDF]
, 2020 Light focusing inside live tissue by digital optical phase conjugation (DOPC) has drawn increasing interest due to its potential biomedical applications in optogenetics, microsurgery, phototherapy, and deep-tissue imaging.
Cheng, Zhongtao +5 more
core +1 more source
Focusing and Compression of Ultrashort Pulses through Scattering Media [PDF]
, 2011 Light scattering in inhomogeneous media induces wavefront distortions which pose an inherent limitation in many optical applications. Examples range from microscopy and nanosurgery to astronomy.
A Assion +46 more
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Mode conversion via wavefront shaping
Optics Express, 2018 In recent years, wavefront shaping has been utilized to control and correct distorted light for enhancing a bright spot, generation of a Bessel beam or darkening a complete area at the output of a scattering system. All these outcomes can be thought of as enhancing a particular mode of the output field. In this letter, we study the relation between the
Anat, Daniel +3 more
openaire +2 more sources
Nonlinear wavefront shaping with optically induced three-dimensional nonlinear photonic crystals
Nature Communications, 2019 Generation of light with desirable amplitude and phase profiles with nonlinear wavefront shaping is important for optical technologies. Here, the authors demonstrate nonlinear wavefront shaping with three-dimensional nonlinear photonic crystals formed by
Shan Liu +7 more
doaj +1 more source
Influence of the absorber dimensions on wavefront shaping based on volumetric optoacoustic feedback [PDF]
, 2015 The recently demonstrated control over light distribution through turbid media based on real-time three-dimensional optoacoustic feedback has offered promising prospects to interferometrically focus light within scattering objects.
Dean-Ben, X. L. +3 more
core +1 more source
Artificial intelligence-assisted light control and computational imaging through scattering media [PDF]
Journal of Innovative Optical Health Sciences, 2019 Coherent optical control within or through scattering media via wavefront shaping has seen broad applications since its invention around 2007. Wavefront shaping is aimed at overcoming the strong scattering, featured by random interference, namely speckle
Shengfu Cheng +4 more
doaj +1 more source
High-contrast imaging at small separation: impact of the optical configuration of two deformable mirrors on dark holes [PDF]
, 2017 The direct detection and characterization of exoplanets will be a major scientific driver over the next decade, involving the development of very large telescopes and requires high-contrast imaging close to the optical axis.
Abe, L. +5 more
core +4 more sources
Light Focusing and Two-Dimensional Imaging Through Scattering Media using the Photoacoustic Transmission-Matrix with an Ultrasound Array [PDF]
, 2014 We implement the photoacoustic transmission-matrix approach on a two-dimensional photoacoustic imaging system, using a 15 MHz linear ultrasound array.
Bossy, Emmanuel +4 more
core +2 more sources
Optical Cryptanalysis Method Using Wavefront Shaping
IEEE Photonics Journal, 2017 Optical techniques for information security have drawn a lot of attention in recent years. The development of cryptanalysis strategies will also have a positive promotion for the cryptosystems themselves.
Meihua Liao +3 more
doaj +1 more source
Mesoscopic theory of optical wavefront shaping to focus deep inside opaque media [PDF]
EPJ Web of ConferencesWe describe the theory of optical wavefront shaping, where waves are focused to a predefined focal point deep inside a disordered three-dimensional (3D) opaque medium (e.g., tissue, paint, foam) by shaping the wavefield sent by N external array elements.
van Tiggelen Bart A. +2 more
doaj +1 more source