Results 121 to 130 of about 675,553 (330)

SPICA infrared coronagraph for the direct observation of exo-planets

, 2010
We present a MIR coronagraph to target the direct observation of extrasolar planets for SPICA, in which a coronagraph is currently regarded as an option of the focal plane instruments. The primary target of the SPICA coronagraph is the direct observation
Abe, Abe, Aime, Aime, Beichman, Bifano, Borucki, Burrows, Burrows, Cash, Charbonneau, Charbonneau, Deming, Deming, Dyson, Désert, Enya, Enya, Enya, Enya, Enya, Enya, Enya, Green, Guyon, Guyon, Harrington, Haze, Henry, Hodapp, Horner, Kalas, Kaneda, Kaneda, Kasdin, Kasdin, Keigo Enya, Kenyon, Lyot, Marois, Mayor, Mulvihill, Murakami, Murakami, Nakagawa, Nakagawa, Onaka, Onaka, Pluzhnik, Richardson, Soummer, Stewart, Sugita, Swain, Swain, Tamura, Tanaka, Tanaka, Tinetti, Toomey, Traub, Traub, Trauger, Vanderbei, Vanderbei, Vanderbei, Werner   +66 more
core   +1 more source

Selection Strategies for Flexible Pressure Sensor Electrode Materials Toward Ultrafast Response

Advanced Functional Materials, EarlyView.
This study reveals, for the first time, how the electrode–organic interface governs the temporal performance of flexible pressure sensors. By pairing high‐conductivity CVD PEDOT with commonly used metal electrodes, the authors demonstrate that interfacial energy alignment dictates microsecond‐scale response, providing a straightforward design strategy ...
Jinwook Baek, Yuxuan Zhang, Hyeondong Yang, Minyoung Kim, Pavlos P. Vlachos, Jeongok Choe, Bo‐Gyu Bok, Kejie Zhao, Han‐Wook Song, Min‐Seok Kim, Martin Byung‐Guk Jun, Sunghwan Lee   +11 more
wiley   +1 more source

Dual-view light-sheet imaging through a tilted glass interface using a deformable mirror. [PDF]

Biomed Opt Express, 2021
Vladimirov N, Preusser F, Wisniewski J, Yaniv Z, Desai RA, Woehler A, Preibisch S.   +6 more
europepmc   +1 more source

Extremely fast focal-plane wavefront sensing for extreme adaptive optics

, 2012
We present a promising approach to the extremely fast sensing and correction of small wavefront errors in adaptive optics systems. As our algorithm's computational complexity is roughly proportional to the number of actuators, it is particularly suitable
Andrei, Raluca, Doelman, Niek, Fraanje, Rufus, Keller, Christoph U., Korkiakoski, Visa, Verhaegen, Michel   +5 more
core   +2 more sources

Atomic‐Level Dual‐Cation Engineering Enables High‐Performance Na4VMn(PO4)3 Cathodes for Sodium‐Ion Batteries

Advanced Functional Materials, EarlyView.
Dual‐cation site engineering unlocks stable and fast sodium storage in Na4VMn(PO4)3 cathodes. Li+ at Na2 suppresses Jahn‐Teller distortion, while K+ at Na1 expands ion channels, enabling synchronized V/Mn redox and quasi‐single‐phase kinetics. This atomic‐level strategy achieves ultralong cycling stability, high‐rate capability, and full cell viability
Jiaze Sun, Xiaoyu Hu, Xianhe Meng, Nengjun Yu, Qiaoling Kang, Lijing Yan, Meiqiang Fan, Chubin Wan, Tingli Ma   +8 more
wiley   +1 more source

Modeling and evaluation of magnetic fluid deformable mirror with dual-layer actuators

International Journal of Optomechatronics, 2019
In this paper, a rectangular magnetic fluid deformable mirror (MFDM) with dual-layer actuators is proposed, which is designed to improve the correction performance for full-order aberrations.
Zhu Zhang, Xiang Wei, Zhizheng Wu, Gunner Scott, Yuanyuan Wang, Mei Liu, Merveilles Dziki   +6 more
doaj   +1 more source

High-contrast Imaging from Space: Speckle Nulling in a Low Aberration Regime

, 2005
High-contrast imaging from space must overcome two major noise sources to successfully detect a terrestrial planet angularly close to its parent star: photon noise from diffracted star light, and speckle noise from star light scattered by instrumentally ...
Krist J., Labeyrie A., Lofdahl M., Pascal J. Borde, Wesley A. Traub   +4 more
core   +1 more source

Dynamic adaptive X-ray optics. Part I. Time-resolved optical metrology investigation of the bending behaviour of piezoelectric bimorph deformable X-ray mirrors [PDF]

, 2018
Simon G. Alcock, Ioana Nistea, Riccardo Signorato, Kawal Sawhney   +3 more
openalex   +1 more source

From Mechanics to Electronics: Influence of ALD Interlayers on the Multiaxial Electro‐Mechanical Behavior of Metal–Oxide Bilayers

Advanced Functional Materials, EarlyView.
Ultrathin AlOxHy interlayers between aluminum films and polymer substrates significantly improve electro‐mechanical properties of flexible thin film systems. By precisely controlling interlayer thickness using atomic layer deposition, this study identifies an optimal interlayer thickness of 5–10 nm that enhances ductility and delays cracking.
Johanna Byloff, Vivek Devulapalli, Daniele Casari, Thomas E. J. Edwards, Claus O. W. Trost, Megan J. Cordill, Shuhel Altaf Husain, Pierre‐Olivier Renault, Damien Faurie, Barbara Putz   +9 more
wiley   +1 more source

Simulations of Adaptive Optics with a Laser Guide Star for SINFONI

, 2004
The SINFONI instrument for ESO's VLT combines integral field spectroscopy and adaptive optics (AO). We discuss detailed simulations of the adaptive optics module.
Brown, Anthony G A, Fedrigo, Enrico, van der Werf, Paul   +2 more
core   +1 more source