Results 41 to 50 of about 518,652 (261)

Self‐Assembled Inorganic Nanomembrane Tubes: Rolled‐Up Piezoelectrics for Microacoustic Wave‐Based Actuators and Sensors

open access: yesAdvanced Materials, EarlyView.
This study demonstrates a self‐assembly process to generate free‐standing piezoelectric nanomembranes, forming ultracompact microtubular acoustic wave sensors and actuators. The miniaturized 3D piezoelectric platform reported in this work can be applied in telecommunication, energy harvesting, and acoustofluidics. Moreover, the 3D self‐assembly can add
Raphaël C. L‐M. Doineau   +9 more
wiley   +1 more source

Intelligent Acousto‐Electrical Metamaterials (IAM) for Sound Source Detection

open access: yesAdvanced Materials, EarlyView.
Our proposed metamaterial concept enables sound source detection using a single material, in contrast to conventional arrays that require dozens or even hundreds of transducers. We show that the coupled acoustic–vibrational–electrical responses in piezoelectric metamaterials give rise to topology‐governed charge transport, producing distinct voltage ...
Victor Couëdel   +7 more
wiley   +1 more source

10-th Spring School on Acoustics and Applications

open access: yesArchives of Acoustics, 2014
Sopot, Poland, May 12-15, 2007 Following nearly 30-year tradition of Springs Schools, it is our great pleasure to invite you to participate in the 10-th School on Acousto-Optics and Applications, which will be held in Sopot, Poland, from 12-th of May ...
Bogumił B.J. LINDE
doaj  

ACOUSTO-OPTIC FREQUENCY MODULATOR

open access: yes2012 Solid-State, Actuators, and Microsystems Workshop Technical Digest, 2012
Frequency modulation of a continuous wave laser source enables generation of photons at multiple frequencies from a single pump laser. Such multiple closely spaced laser lines are important for high data rate QAM in dense-WDM networks. In this paper we present a monolithic silicon acousto-optic frequency modulator (AOFM) operating at 1.09GHz.
Tallur, Siddharth, Bhave, Sunil A.
openaire   +2 more sources

Bias‐Field Free Single‐Frequency CW‐ODMR of Nitrogen‐Vacancy Centers in Diamond for the Detection of Transient Electrical Signals

open access: yesAdvanced Materials Interfaces, EarlyView.
Simplified quantum sensing technique for the detection of short electrical signals occurring in neuronal signaling or bioinspired technologies. We demonstrate a single frequency continuous‐wave optically detected magnetic resonance (CW‐ODMR) approach to sense signals that can be as short as 0.2 ms.
João Paulo Silva   +4 more
wiley   +1 more source

Holographic imaging of cylindrical ultrasonic waves

open access: yesArchives of Acoustics, 2014
This report is devoted to the visualisation of standing cylindrical ultrasonic wave, generated by a radially vibrating piezoelectric shell, by means of time-average holographic interferometry. The theoretical basis of this technique was introduced, and
L. Grulkowski, D. Jankowski, P. Kwiek
doaj  

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

open access: yesAdvanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu   +8 more
wiley   +1 more source

Direct multi-channel optical spectrum analysis of radio-wave signals using collinear wave heterodyning in the single acousto-optical cell [PDF]

open access: yes, 2010
An attempt is made to improve the accuracy of a multi-channel parallel acousto-optical spectrum analysis through involving an additional nonlinear conversion into data processing.
Alexander Shcherbakov   +2 more
core  

Guided-wave acousto-optic devices for space applications

open access: yes, 2005
Production of high- performance and low-cost new devices to be used in space applications is strongly required due to the remarkable development of innovative technologies in the last few years.
C. Ciminelli, F. Peluso, M. N. Armenise
core   +1 more source

11th International School on Acousto-optics and its Applications Gdańsk, Poland, September 5 – 6, 2011

open access: yesArchives of Acoustics, 2013
The 11th School on Acousto-optics and its Appli- cations was held during the ICU’2011 – Interna- tional Congress on Ultrasonics’2011, Gdansk, Poland, 5–8 September 2011, incorporated within the Congress as one of the six structured sessions named as
B. B. J. LINDE, A. ŚLIWIŃSKI
doaj  

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