Results 51 to 60 of about 48,988 (289)

The Subaru Coronagraphic Extreme Adaptive Optics system: enabling high-contrast imaging on solar-system scales [PDF]

, 2015
The Subaru Coronagraphic Extreme Adaptive Optics (SCExAO) instrument is a multipurpose high-contrast imaging platform designed for the discovery and detailed characterization of exoplanetary systems and serves as a testbed for high-contrast imaging ...
Baba, N., Clergeon, C., Close, L., Doughty, D., Duchene, G., Garrel, V., Gauchet, L., Guyon, O., Hayano, Y., Huby, E., Jovanovic, N., Kotani, T., Kudo, T., Kuhn, J., Lacour, S., Lai, O., Lozi, J., Males, J., Marchis, F., Martinache, F., Matsuo, T., Minowa, Y., Morino, J., Murakami, N., Newman, K., Nishikawa, J., Norris, B., Oshiyama, F., Perrin, G., Schworer, G., Serabyn, E., Singh, G., Stewart, P., Takato, N., Tamura, M., Tuthill, P., Vievard, S., Woillez, J.   +37 more
core   +3 more sources

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

Advanced 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, Luke Gatecliff, Xudong Tao, Ruben Ruiz‐Mateos Serrano, Amy T. Jin, Matias L. Picchio, Daniele Mantione, Antonio Dominguez‐Alfaro, George G. Malliaras   +8 more
wiley   +1 more source

Breakthroughs in Photonics 2013: Flat Optics: Wavefronts Control With Huygens' Interfaces

IEEE Photonics Journal, 2014
Recent progress in the fields of nanophotonics and metamaterials has enabled the development of ultrathin and flat optical components, providing physicists and optical engineers a new method to control light.
Patrice Genevet, Federico Capasso
doaj   +1 more source

High quality factor metasurfaces for two-dimensional wavefront manipulation

Nature Communications, 2023
The strong interaction of light with micro- and nanostructures plays a critical role in optical sensing, nonlinear optics, active optical devices, and quantum optics.
Claudio U. Hail, Morgan Foley, Ruzan Sokhoyan, Lior Michaeli, Harry A. Atwater   +4 more
doaj   +1 more source

Imaging of Biphoton States: Fundamentals and Applications

Advanced 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

Adaptive Hydrogels With Spatiotemporal Stiffening Using pH‐Modulating Enzymes

Advanced 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, Zoe Grämiger, André R. Studart, Rafael Libanori   +3 more
wiley   +1 more source

Controlling cantilevered adaptive X-ray mirrors

Journal of Synchrotron Radiation
Modeling the behavior of a prototype cantilevered X-ray adaptive mirror (held from one end) demonstrates its potential for use on high-performance X-ray beamlines.
Kenneth A. Goldberg, Kyle T. La Fleche
doaj   +1 more source

Speckle Control with a remapped-pupil PIAA-coronagraph

, 2012
The PIAA is a now well demonstrated high contrast technique that uses an intermediate remapping of the pupil for high contrast coronagraphy (apodization), before restoring it to recover classical imaging capabilities.
Belikov R., Beuzit J.-L., Celia Blain, Christophe Clergeon, Frantz Martinache, Hodapp K. W., Kern B., Macintosh B. A., Martinache F., Olivier Guyon, Tamura M.   +10 more
core   +2 more sources

Fast minimum variance wavefront reconstruction for extremely large telescopes [PDF]

, 2010
We present a new algorithm, FRiM (FRactal Iterative Method), aiming at the reconstruction of the optical wavefront from measurements provided by a wavefront sensor.
Béchet, Ellerbroek, Eric Thiébaut, Fried, Fried, Gendron, Gilles, Gilles, Gilles, Gilles, Herrmann, Lane, Le Louarn, Le Roux, MacMartin, Michel Tallon, Poyneer, Poyneer, Roddier, Skilling, Southwell, Tarantola, Vogel, Vogel, Wild, Yang   +25 more
core   +1 more source

Structure Formation in Butterfly Scales: Interplay of Genetic Control, Mechanical Instabilities, and Dynamic Material Properties

Advanced Functional Materials, EarlyView.
Butterfly wing scales are intricate cuticular functional nanosctructures. This perspective suggests that spatially varying material properties, cytoskeletal constraints, and growth‐driven mechanical instabilities shape the resulting nanoscale architectures created from single cells.
Anupama Prakash, Victoria Lloyd, Yi Yang, Anna‐Lee Jessop, Anthony McDougal, Primož Pirih, Guillaume Duclos, Andrew Parnell, Mathias Kolle, Nicola J. Nadeau, Bodo D. Wilts   +10 more
wiley   +1 more source