Results 71 to 80 of about 7,388 (190)

Diffusion-induced dephasing in nanomechanical resonators [PDF]

, 2010
We study resonant response of an underdamped nanomechanical resonator with fluctuating frequency. The fluctuations are due to diffusion of molecules or microparticles along the resonator.
A. Isacsson, A. N. Cleland, H. Risken, J. Atalaya, L. Landau, M. A. Ivanov, M. Gitterman, M. I. Dykman, M. I. Dykman   +8 more
core   +2 more sources

Displacive In‐Plane Ferroelectricity with Domain‐Specific Curie Temperature in Van der Waals Semiconductors

Advanced Science, EarlyView.
Temperature‐dependent electron diffraction on tin monochalcogenides demonstrates a gradual displacive transformation between ferroelectric and paraelectric phases with significant variability in lattice constants and Curie temperature (TC). Periodic variations exist even between domains in individual crystals, implying a domain‐specific Curie ...
Peter Sutter, Eli Sutter
wiley   +1 more source

A robust, fiber-coupled scanning probe magnetometer using electron spins at the tip of a diamond nanobeam

New Journal of Physics
Fiber-coupled sensors are well suited for sensing and microscopy in hard-to-reach environments such as biological or cryogenic systems. We demonstrate fiber-based magnetic imaging based on nitrogen-vacancy (NV) sensor spins at the tip of a fiber-coupled ...
Yufan Li, Gesa Welker, Richard Norte, Toeno van der Sar   +3 more
doaj   +1 more source

Observation of Quantum Motion of a Nanomechanical Resonator [PDF]

, 2012
In this Letter we use resolved sideband laser cooling to cool a mesoscopic mechanical resonator to near its quantum ground state (phonon occupancy 2.6±0.2), and observe the motional sidebands generated on a second probe laser.
Alegre, Thiago P. Mayer, Chan, Jasper, Hill, Jeff T., Krause, Alex, Painter, Oskar, Safavi-Naeini, Amir H.   +5 more
core   +1 more source

Transient Terahertz Oscillations During Photoinduced Polarization Topology Reconfiguration in Ferroelectric Superlattices

Advanced Science, EarlyView.
Terahertz resonances in crystalline heterostructures could close a spectral gap between conventional electronics and photonics while opening new windows on non‐equilibrium lattice dynamics. Femtosecond optical screening of the depolarization field in epitaxial PbTiO3/SrTiO3 superlattices launches a collective polar mode that oscillates near 1 THz and ...
Deepankar Sri Gyan, Hyeon Jun Lee, Xiangwei Guo, Youngjun Ahn, Samuel D. Marks, Mohammed H. Yusuf, Matthew Dawber, James M. Glownia, Diling Zhu, Takahiro Sato, Sanghoon Song, Haidan Wen, Jia‐Mian Hu, Paul G. Evans   +13 more
wiley   +1 more source

Nonlinear vibration analysis of fractional viscoelastic nanobeam

Journal of Vibration Engineering & Technologies, 2022
Abstract Considering the size-dependent influence ignored by classical continuum mechanics, a new non-classical Euler-Bernoulli beam model is proposed in this paper. The new fractional viscoelastic nanobeam model is set up by using the fractional viscoelastic Kelvin-Voigt model and Hamilton's principle.
Meifeng Qiu, Dongxia Lei, Zhiying Ou
openaire   +1 more source

Design of a Chalcogenide -based 1D Photonic Crystal Nanobeam Cavity

Majlesi Journal of Electrical Engineering
This article presents the design and optimization of a side-coupled chalcogenide-based 1D PhC nanobeam cavity in the mid-IR spectral range. The structure configuration consists of 1D PhC nanobeam and side-coupled bending bus waveguide for efficient ...
Seyed Mohammad Zare, Majid Ebnali Heidari, Mohammad Reza Shayesteh, Aliakbar Ebnali Heidari, Maryam Nayeri   +4 more
doaj   +1 more source

Nonlocal vibration of a fractional order viscoelastic nanobeam with attached nanoparticle [PDF]

Theoretical and Applied Mechanics, 2015
We propose a novel mathematical framework to examine the free damped transverse vibration of a nanobeam by using the nonlocal theory of Eringen and fractional derivative viscoelasticity.
Cajić Milan, Karličić Danilo, Lazarević Mihailo   +2 more
doaj   +1 more source

Fabrication and characterization of high quality factor silicon nitride nanobeam cavities

, 2010
Si3N4 is an excellent material for applications of nanophotonics at visible wavelengths due to its wide bandgap and moderately large refractive index (n $\approx$ 2.0).
Babinec, Barclay, Barth, Barth, Barth, Beveratos, Deotare, Englund, Gong, Hausmann, Jelezko, Kendall, Makarova, Marko Lončar, McCutcheon, Mughees Khan, Murray W. McCutcheon, Parag Deotare, Park, Rivoire, Schietinger, Seidel, Srinivasan, Thomas Babinec   +23 more
core   +1 more source

High-efficiency degenerate four wave-mixing in triply resonant nanobeam cavities [PDF]

, 2013
We demonstrate high-efficiency, degenerate four-wave mixing in triply resonant Kerr $\chi^(3)$ photonic crystal (PhC) nanobeam cavities. Using a combination of temporal coupled mode theory and nonlinear finite-difference time-domain (FDTD) simulations ...
Alcorn, Thomas, Johnson, Steven G., Lin, Zin, Loncar, Marko, Rodriguez, Alejandro W.   +4 more
core   +2 more sources