Results 71 to 80 of about 11,729,249 (285)

Coherent Absorption Reveals Colors Hidden in a Grey Fabry–Pérot Cavity

Advanced Optical Materials, EarlyView.
A dielectric thin film shows colors depending on its thickness; this effect can be used to encode information normally accessible through single‐beam spectroscopy. We developed a method to conceal this kind of information, based on coating the dielectric with a matched conductor, that suppresses the color‐bearing thin‐film resonances.
Giuseppe E. Lio, Giulio Carotta, Lorenzo Lavista, Andrea Camposeo, Giacomo Venturi, Agnese Guernieri, Alessandro Pitanti, Simon A. R. Horsley, Giuseppe C. La Rocca, Alessandro Tredicucci, Simone Zanotto   +10 more
wiley   +1 more source

Probing Electrocatalyst Design for Product Selectivity in CO2 Reduction

Advanced Science, EarlyView.
Selective CO2 electroreduction is controlled by catalyst structure, dynamic surface reconstruction, adsorbate interactions, and reaction microenvironment. This review summarizes Cu‐ and non‐Cu‐based catalysts, single‐atom and molecular systems, degradation pathways, and operando/computational strategies for steering CO2RR toward hydrocarbons ...
Suvodeep Sen, Bapan Biswas, Apinya Ngoipala, Julia Wiktor, Ujjwal Pal, Shalini Singh   +5 more
wiley   +1 more source

The Murchison Widefield Array Enters Adolescence: A Personal Review of the Early Years of Operations

Galaxies
The Murchison Widefield Array (MWA) is a low frequency radio interferometer designed and developed by an international consortium, operated on behalf of the consortium by Curtin University.
Steven J. Tingay
doaj   +1 more source

RFI Cancellation for an Array Radio Astronomy System With Receiver Nonlinearity

IEEE Access, 2019
Radio frequency interference (RFI) is an important problem for a radio astronomy system (RAS) due to the very weak radio astronomical signals. Rapid expansions of active wireless systems (AWSs), as well as more demands for spectrum access by both AWS and
Mahmoud E. Abdelgelil, Hlaing Minn
doaj   +1 more source

Multispectral UV Imaging on Capacitive CMOS Arrays Enabled by Solution‐Processed Metal‐Oxide Nanoparticles

Advanced Science, EarlyView.
Ultraviolet (UV) imagers are important for a variety of applications but often require dedicated semiconductor process flows. Here, a versatile capacitive CMOS platform is transformed into a visible‐blind, multispectral UV imager through post‐CMOS functionalization with solution‐processed metal‐oxide nanoparticles. The UV‐induced photodielectric effect
Suman Kundu, Tao Shen, Kai Betlem, Murali K. Ghatkesar, Peter G. Steeneken, Frans P. Widdershoven   +5 more
wiley   +1 more source

Low-Frequency Radio Astronomy Prospects [PDF]

, 2005
Описаны состояние и основные тенденции развития радиоастрономии. Главное внимание уделено прошлому, настоящему и будущему радиоастрономии декаметровых волн. В этой области Украина имеет наивысший потенциал и крупнейшие в мире радиотелескопы УТР-2 и УРАН.
Коноваленко, А.А.
core   +1 more source

Photonic swarm for low frequency radio astronomy in Space

, 2017
Radio astronomy from 100 kHz to 30 MHz allows compelling science that requires a new space based interferometer at a considerable distance from the Earth. We propose a new satellite concept which has a series of dipole antennas connected to the satellite using tethers.
Kruithof, G.H., Boonstra, A.J., Brentjens, M., Maat, P., van der Marel, J., Bentum, M.J.   +5 more
openaire   +2 more sources

Scalable Crackle‐Lithography for Multifunctional Enclosed Plastic Nanofluidic Devices

Advanced Science, EarlyView.
Crackle‐lithography enables scalable fabrication of enclosed plastic‐substrate‐based nanofluidic devices with interconnected nanochannels that enable molecular transport, optical interrogation, confined electroless copper deposition, and ionic memristive behavior.
Tirumala Rao Dumpala, S. Kiruthika, Siddhi Vinayak Pandey, Junyang Zhang, Solleti Goutham, Marcos Vinicius Surmani Martins, Harry Whittingham, Boya Radha, Ashok Keerthi   +8 more
wiley   +1 more source

Low Frequency Radio Astronomy from Above the Ionosphere [PDF]

Symposium - International Astronomical Union, 2002
The GMRT represents a dramatic improvement in ground-based observing capabilities for low frequency radio astronomy. At sufficiently low frequencies, however, no ground-based facility will be able to produce high resolution images while looking through the ionosphere.
openaire   +1 more source

Symmetry‐Imposed Selection Rules for Excitations of Nontrivial Plasmonic Topologies

Advanced Science, EarlyView.
A unified group‐theory selection rule governs the excitation of vectorial nearfield topologies across three plasmonic spin states. Derived from first principles, it predicts spin–orbit vortex splitting and multidimensional nested vortices, confirmed by phase‐resolved in situ measurements.
Jie Yang, Pengyi Feng, Fei Han, Weijin Chen, Zhongwei Jin, Jincheng Ni, Yuanjie Yang, Anxue Zhang, Guy A. E. Vandenbosch, Niels Verellen, Ewald Janssens, Jiafu Wang, Benfeng Bai, Cheng‐Wei Qiu, Xuezhi Zheng   +14 more
wiley   +1 more source