Results 41 to 50 of about 1,188 (162)

Characterization of the Vibration and Strain Energy Density of a Nanobeam under Two-Temperature Generalized Thermoelasticity with Fractional-Order Strain Theory

Mathematical and Computational Applications, 2021
In this work, fractional-order strain theory was applied to construct a novel model that introduces a thermal analysis of a thermoelastic, isotropic, and homogeneous nanobeam.
Hamzah Abdulrahman Alharthi
doaj   +1 more source

Self-aligned nanoislands nanobeam bandedge lasers

Optics Express, 2017
We propose and demonstrate a novel one-dimensional nanobeam bandedge laser constituted by self-aligned nanoisland quantum-well (QW) structures. The formation of self-aligned InGaAsP nanoislands sandwiched between two InP claddings is the result of selective removal of QW through wet-etching processes.
Pramudita, Putu, Jang, Hoon, Karnadi, Indra, Kim, Hwi-Min, Lee, Yong-Hee   +4 more
openaire   +3 more sources

Synchronization of Optomechanical Nanobeams by Mechanical Interaction [PDF]

Physical Review Letters, 2019
The synchronization of coupled oscillators is a phenomenon found throughout nature. Mechanical oscillators are paradigmatic examples, but synchronizing their nanoscaled versions is challenging. We report synchronization of the mechanical dynamics of a pair of optomechanical crystal cavities that, in contrast to previous works performed in similar ...
Colombano, M. F., Arregui, G., Capuj, N. E., Pitanti, A., Maire, J., Griol, A., Garrido, B., Martinez, A., Sotomayor-Torres, C. M., Navarro-Urrios, D.   +9 more
openaire   +3 more sources

Free vibration of the bi-dimensional functionally grated (2D-FG) nanobeams [PDF]

E3S Web of Conferences
In this paper, the free vibration of the bi-dimensional functionally grated (2D-FG) size dependent nanobeams was investigated by finite element method. The material properties of 2D-FG nanobeam are assumed to vary in both axial and thickness directions ...
Le Thi Ngoc Anh, Tran Duc Hieu, Vu Thi Ngoc Lan, Vu Thi An Ninh, Nguyen Dinh Kien   +4 more
doaj   +1 more source

SnSe_1-xS_x Alloys: Anisotropic Van der Waals Semiconductors with Tunable Bandgaps. [PDF]

Small
Consecutive growths from a mixed (SnS‐SnSe) powder precursor produced series of samples of large, single‐crystalline SnSe1‐xSx alloy flakes with systematically varying composition. Advanced experiments on such samples, combined with theoretical calculations, enabled the comprehensive investigation of the crystal structure, vibrational modes, band ...
Sutter P, Barinov A, Komsa HP, Ghimire P, Wu L, Zhu Y, Kisslinger K, Sutter E.   +7 more
europepmc   +2 more sources

Atomically Revealing Bulk Point Defect Dynamics in Hydrogen‐Driven γ‐Fe2O3 → Fe3O4 → FeO Transformation

Advanced Functional Materials, EarlyView.
In situ TEM uncovers the atomic‐scale mechanisms underlying hydrogen‐driven γ‐Fe2O3→Fe3O4→FeO reduction. In γ‐Fe2O3, oxygen vacancies cluster around intrinsic Fe vacancies, leading to nanopore formation, whereas in Fe3O4, vacancy aggregation is suppressed, preserving a dense structure.
Yupeng Wu, Dongxiang Wu, Wenhui Zhu, Xiaobo Chen, Zhikang Zhou, Zhilu Liang, Shuonan Ye, Meng Li, Xiao Tong, Kim Kisslinger, Sooyeon Hwang, Dmitri Zakharov, Renu Sharma, Judith C. Yang, Guangwen Zhou   +14 more
wiley   +1 more source

Nonlinear Vibration Analysis of Thermo-Magneto-Mechanical Piezoelectric Nanobeam Embedded in Multi-Layer Elastic Media based on Nonlocal Elasticity Theory

Journal of Materials and Engineering Structures, 2021
The present article focuses on the investigations of electromechanical thermo-magnetic coupled effects on the nonlinear vibration of single-walled carbon nanobeam embedded in Winkler, Pasternak, quadratic and cubic nonlinear elastic media for simply ...
Gbeminiyi Musibau SOBAMOWO, A.A. YINUSA, O.P. POPOOLA, M.A. WAHEED   +3 more
doaj  

Single‐Crystalline Lateral p‐SnS/n‐SnSe van der Waals Heterostructures by Vapor Transport Growth with In Situ Bi Doping

Advanced Functional Materials, EarlyView.
In‐situ doping during growth of SnSe and subsequent attachment of SnS produces high‐quality lateral pn‐heterojunctions between van der Waals semiconductors. Electron beam induced current measurements demonstrate electrically active pn‐junctions, paving the way for devices that harness charge separation at lateral interfaces in layered heterostructures.
Peter Sutter, Valerio Piazza, Pramod Ghimire, Anna Fontcuberta i Morral, Eli Sutter   +4 more
wiley   +1 more source

Dual-rail nanobeam microfiber-coupled resonator

Optics Express, 2013
A microfiber-coupled dual-rail nanobeam resonator is proposed and demonstrated. The dual-rail scheme is employed to encourage the overlap between the light emitter and the air mode. The one-dimensional resonant cavity is formed by contacting a curved microfiber with the dual-rail nanobeam.
Lim, Hee-Jin, Lee, Chang-Min, Ahn, Byeong-Hyeon, Lee, Yong-Hee   +3 more
openaire   +3 more sources

Waveguide Photoactuators: Materials, Fabrication, and Applications

Advanced Robotics Research, EarlyView.
Waveguide photoactuators convert guided light into mechanical motion. Their tethered‐flexible design enables minimally invasive surgery and confined‐space robotics. This review aims to guide materials selection, device design, and system integration, accelerating the transition of waveguide photoactuators from laboratory prototypes to versatile ...
Minjie Xi, Hemin Pan, Yang Zong, Yongfeng Mei, Jizhai Cui   +4 more
wiley   +1 more source