Results 51 to 60 of about 15,894 (239)

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

Advanced 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, Christian N. Saggau, Stefan Baunack, Thomas Gemming, Yara Abdelaal, Robert Weser, Oliver G. Schmidt, Hagen Schmidt, Andreas Winkler, Mariana Medina‐Sánchez   +9 more
wiley   +1 more source

Experimental evidence of quadrupolar whispering-gallery modes in phononic crystal based waveguides

AIP Advances, 2019
Understanding the performance of resonators introduced in elastic and/or acoustic circuits is important for conceiving complex and efficient guiding structures.
Jinfeng Zhao, Weitao Yuan, Olga Boyko, Bernard Bonello, Xiaoqing Zhang, Yongdong Pan, Zheng Zhong   +6 more
doaj   +1 more source

Whispering Vortices

, 1999
Experiments indicating the excitation of whispering gallery type electromagnetic modes by a vortex moving in an annular Josephson junction are reported.
A. Davidson, A. V. Ustinov, A. V. Ustinov, A. Wallraff, A. Wallraff, C. Gmachl, G. Lee, I. A. Shereshevsky, I. V. Vernik, J. Walker, L. Rayleigh, N. K. Vdovicheva, N. Martucciello, N. Martucciello, S. L. McCall, V. V. Kurin, V. V. Kurin   +16 more
core   +1 more source

Interfacing transitions of different alkali atoms and telecom bands using one narrowband photon pair source [PDF]

, 2015
Quantum information technology strongly relies on coupling of optical photons with narrowband quantum systems, such as quantum dots, color centers, and atomic systems.
Christiansen, Silke, Förtsch, Michael, Göbelt, Manuela, Leuchs, Gerd, Marquardt, Christoph, Schunk, Gerhard, Schwefel, Harald G. L., Sedlmeir, Florian, Strekalov, Dmitry V., Vogl, Ulrich   +9 more
core   +2 more sources

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

Advanced 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, Mengyao Xiao, Zhouli Sui, Yinpeng Wang, Daoye Zheng, Yuxin Liu, Luwei Wang, Huajun Liu, Chengkuo Lee   +8 more
wiley   +1 more source

Spectroscopic properties of large open quantum-chaotic cavities with and without separated time scales

, 2006
The spectroscopic properties of an open large Bunimovich cavity are studied numerically in the framework of the effective Hamiltonian formalism. The cavity is opened by attaching leads to it in four different ways.
Evgeny N. Bulgakov, Ingrid Rotter, S. Datta   +2 more
core   +1 more source

Photon‐Sphere Modes in Curved Optical Microcavities: A Black‐Hole Analogue Laser

Advanced Science, EarlyView.
An optical analogue of a Schwarzschild black hole is realized using curved microcavities that preserve light‐like geodesics. A new family of laser modes confined around the photon sphere is identified alongside conventional whispering‐gallery modes. Analytical theory, numerical simulations, and experiments reveal curvature‐induced confinement, enabling
Chenni Xu, Aswathy Sundaresan, Nazire‐Begüm Kazkal, Clement Lafargue, Lior Zarfaty, Li‐Gang Wang, Ofek Birnholtz, Dominique Decanini, Melanie Lebental, Patrick Sebbah   +9 more
wiley   +1 more source

An Eigenanalysis Study of Tunable THz and Photonic Unbounded Structures Employing Finite Element Method

IEEE Photonics Journal, 2019
This work aims at the establishment of a rigorous full-wave eigenmode analysis technique based on a finite element scheme for the study of terahertz (THz) or photonic/optical unbounded structures.
Konstantinos D. Paschaloudis, Constantinos L. Zekios, Laura Ghisa, Peter C. Allilomes, Kyriakos E. Zoiros, Ammar Sharaiha, Stavros Iezekiel, George A. Kyriacou   +7 more
doaj   +1 more source

Method for predicting whispering gallery mode spectra of spherical microresonators

, 2015
A full three-dimensional Finite-Difference Time-Domain (FDTD)-based toolkit is developed to simulate the whispering gallery modes of a microsphere in the vicinity of a dipole source.
Francois, Alexandre, Hall, Jonathan M. M., Henderson, Matthew R., Monro, Tanya M., Reynolds, Tess, Riesen, Nicolas, V., Shahraam Afshar   +6 more
core   +1 more source

Exceptional Antimodes in Multi‐Drive Cavity Magnonics

Advanced Electronic Materials, EarlyView.
Driven‐dissipative cavity‐magnonics provides a flexible platform for engineering non‐Hermitian physics such as exceptional points. Here, using a four‐port, three‐mode system with controllable microwave interference, antimodes and coherent perfect extinction (CPE) are realized, enabling active tuning to antimode exceptional points.
Mawgan A. Smith, Ryan D. McKenzie, Alban Joseph, Robert L. Stamps, Rair Macêdo   +4 more
wiley   +1 more source