Results 61 to 70 of about 13,853 (310)

An All‐Optical Driven Bio‐Photovoltaic Interface for Active Control of Live Cells

open access: yesAdvanced Functional Materials, EarlyView.
Bio‐photovoltaic Interface (BIO‐PV‐I) for live cell manipulation is presented. BIO‐PV‐I can be activated non‐invasively and remotely to control the spatial motility, adhesion, and morphology of cells adhering to it. BIO‐PV‐I uses a patterned light‐induced electric potential in iron‐doped lithium niobate crystals whose light‐driven and reversible nature,
Lisa Miccio   +8 more
wiley   +1 more source

Programmable two-photon quantum interference in $10^3$ channels in opaque scattering media [PDF]

open access: yes, 2015
We investigate two-photon quantum interference in an opaque scattering medium that intrinsically supports $10^6$ transmission channels. By adaptive spatial phase-modulation of the incident wavefronts, the photons are directed at targeted speckle spots or
Boller, Klaus -J.   +5 more
core   +4 more sources

Coherent Raman Generation Controlled by Wavefront Shaping [PDF]

open access: yesScientific Reports, 2019
AbstractWe investigate the possibility of tailoring coherent Raman generated spectra via adaptive wavefront optimization. Our technique combines a spatial light modulator and a spectrometer providing a feedback loop. The algorithm is capable of controlling the Raman generation, producing broader spectra and an improved overall efficiency, and ...
Shutova, Mariia   +4 more
openaire   +2 more sources

PEDOT‐Based Eutectogel Electrode Arrays for Enhanced High‐Resolution Electrogastrography: Fabrication, Stability, and Wearable Performance

open access: yesAdvanced Functional Materials, EarlyView.
Here, we present a high‐density PEDOT eutectogel electrode array for enhanced body surface gastric mapping. Silver electrodes are blade‐coated onto flexible substrates, followed by electrogelation of PEDOT:PSS and the deposition of a PEDOT:LS eutectogel.
Christopher Slaughter   +8 more
wiley   +1 more source

Imaging of Biphoton States: Fundamentals and Applications

open access: yesAdvanced Functional Materials, EarlyView.
Quantum states of two photons exhibit a rich polarization and spatial structure, which provides a fundamental resource of strongly correlated and entangled states. This review analyzes the physics of these intriguing properties and explores the various techniques and technologies available to measure them, including the state of the art of their ...
Alessio D'Errico, Ebrahim Karimi
wiley   +1 more source

Wavefront shaping microscopy : Controlling scattered light for deep tissue imaging [PDF]

open access: yes, 2020
In microscopy, light scattering sets the limit for the maximum imaging depth inside biological tissue. In this thesis, we explore how this fundamental depth limit can be broken by means of wavefront shaping. Wavefront shaping is a powerful tool that provides control over the light inside scattering media.
openaire   +2 more sources

Adaptive Hydrogels With Spatiotemporal Stiffening Using pH‐Modulating Enzymes

open access: yesAdvanced Functional Materials, EarlyView.
The chemomechanical coupling in an adaptive hydrogel is studied to further the development of adaptive hydrogels. This coupling is achieved by embedding a pH‐modulating enzyme in a pH‐responsive hydrogel. The enzymatic reaction can be triggered locally, which generates a pH‐decreasing wave throughout the system, increasing the crosslinking density and ...
Natascha Gray   +3 more
wiley   +1 more source

Focusing light into scattering media with ultrasound-induced field perturbation

open access: yesLight: Science & Applications, 2021
A wavefront shaping technique with ultrasound-induced optical field perturbation is demonstrated, which provides an efficient and flexible mechanism to implement noninvasive and addressable optical focusing into scattering media.
Zhongtao Cheng, Lihong V. Wang
doaj   +1 more source

Overview of Advanced LIGO Adaptive Optics

open access: yes, 2016
This is an overview of the adaptive optics used in Advanced LIGO (aLIGO), known as the thermal compensation system (TCS). The thermal compensation system was designed to minimize thermally-induced spatial distortions in the interferometer optical modes ...
Abbott, Benjamin   +25 more
core   +1 more source

Aberrations of the point spread function of a multimode fiber [PDF]

open access: yes, 2016
We investigate the point spread function of a multimode fiber. The distortion of the focal spot created on the fiber output facet is studied for a variety of the parameters.
Amitonova, Lyubov V.   +2 more
core   +4 more sources

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