Results 81 to 90 of about 19,862 (222)
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.A new re‐crystallization strategy was employed to design a highly crystallized poly(heptazine imide) photocatalyst, achieving strong light absorption capacity, accelerated separation/migration of photocarriers, and enhanced proton extraction capability simultaneously.
Xiaojuan Zhi +11 more
wiley +1 more source
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.This stretchable active frequency selective fabric achieves reversible switching between bandstop and transparent states through strain‐induced reconfiguration of its conductive network. Its zero‐power and mechanically tunable characteristics offer potential for wearable electromagnetic functional materials.
Hao Feng +6 more
wiley +1 more source
Advances in Position‐Momentum Entanglement: A Versatile Tool for Quantum Technologies
Laser &Photonics Reviews, EarlyView.Position–momentum entanglement constitutes a high‐dimensional continuous‐variable resource in quantum optics. Recent advances in its generation, characterization, and control are reviewed, with emphasis on spontaneous parametric down‐conversion and modern measurement techniques.
Satyajeet Patil +6 more
wiley +1 more source
IEEE Access, 2019 A three-element antenna system with the ability to operate in a unique set of switchable and frequency-tunable configurations is presented here. Firstly, this antenna system can switch between sum and difference radiation patterns using a mirrored ...
Seyed-Ali Malakooti, Christophe Fumeaux
doaj +1 more source
Laser &Photonics Reviews, EarlyView.Manipulating the ultranarrow linewidth spectral features of quasi bound states in the continuum is challenging. A metasurface supporting linear‐to‐linear cross‐polarization coupling efficiency surpassing 25% is proposed to address the issue. Less than 100 nm linewidth is achieved, enabling the device to be applied to wavelength‐selective polarization ...
Shuhao Wu +5 more
wiley +1 more source
Single-/Dual-Band Bandpass-to-Bandstop Filters With Center Frequency Tunability
IEEE AccessThis paper reports on the design and experimental validation of a new class of frequency-tunable filters with switchable bandpass-to-bandstop transfer function characteristics.
Ali Kursad Gorur, Dimitra Psychogiou
doaj +1 more source
Alternative Post-Processing on a CMOS Chip to Fabricate a Planar Microelectrode Array
Sensors, 2011 We present an alternative post-processing on a CMOS chip to release a planar microelectrode array (pMEA) integrated with its signal readout circuit, which can be used for monitoring the neuronal activity of vestibular ganglion neurons in newborn Wistar ...
Blanca Cervantes-Sanchez +6 more
doaj +1 more source
Testing of the LSST's photometric calibration strategy at the CTIO 0.9 meter telescope [PDF]
, 2018 The calibration hardware system of the Large Synoptic Survey Telescope (LSST) is designed to measure two quantities: a telescope's instrumental response and atmospheric transmission, both as a function of wavelength.
Coughlin, Michael W. +6 more
core +3 more sources
Highly Versatile Real‐Time Optical Noise Filtering Through Temporal Cloaking
Laser &Photonics Reviews, EarlyView.Conventional bandpass filtering strategies may be insufficient for recovering optical waveforms under extremely noisy conditions. We demonstrate a temporal‐cloaking denoising strategy enabled by the temporal Talbot effect, which concentrates the coherent signal of interest into short temporal slots while broadband noise remains temporally spread.
Majid Goodarzi +5 more
wiley +1 more source
A Fractal-Based Compact Tunable Bandpass Filter with High Selectivity and Band Rejection
Journal of Engineering and Sustainable DevelopmentFractal geometries have emerged as a promising approach for designing compact, tunable electronic components, particularly in microwave and radio-frequency circuits.
Areeg Fadhil +3 more
doaj +1 more source