Results 81 to 90 of about 7,388 (190)

Thermally Modulated Specular Phonon Transport in a High‐Debye‐Temperature Diamond Nanobeam

Advanced Science, EarlyView.
Thermal transport in single‐crystal diamond nanobeams is measured from 140 to 300 K using electro‐thermal micro‐suspended structures. The thermal conductivity shows an increasing deviation from Boltzmann transport predictions assuming fully diffuse boundary scattering at lower temperatures.
Seohee Jang, Seung‐Woo Jeon, Takuma Shiga, Jeeyoung Shin, Sangwook Han, Woosung Park   +5 more
wiley   +1 more source

Buckling Behavior of Nanobeams Placed in Electromagnetic Field Using Shifted Chebyshev Polynomials-Based Rayleigh-Ritz Method

Nanomaterials, 2019
In the present investigation, the buckling behavior of Euler−Bernoulli nanobeam, which is placed in an electro-magnetic field, is investigated in the framework of Eringen’s nonlocal theory.
Subrat Kumar Jena, Snehashish Chakraverty, Francesco Tornabene   +2 more
doaj   +1 more source

Enhancement and Speed‐Up of Carrier Dynamics in A Dielectric Nanocavity with Deep Sub‐Wavelength Confinement

Laser &Photonics Reviews, EarlyView.
This work presents the first experimental investigation of ultrafast dynamics in dielectric bowtie nanocavities, featuring deep‐subwavelength mode confinement. Measurements reveal enhanced two‐photon absorption, sub‐picosecond carrier relaxation, and strong pump–probe interactions, demonstrating clear advantages over conventional nanocavities for low ...
Gaoneng Dong, Ali Nawaz Babar, Rasmus Ellebæk Christiansen, Søren Engelberth Hansen, Søren Stobbe, Yi Yu, Jesper Mørk   +6 more
wiley   +1 more source

Phonon Conduction in Silicon Nanobeam Labyrinths

Scientific Reports, 2017
AbstractHere we study single-crystalline silicon nanobeams having 470 nm width and 80 nm thickness cross section, where we produce tortuous thermal paths (i.e. labyrinths) by introducing slits to control the impact of the unobstructed “line-of-sight” (LOS) between the heat source and heat sink.
Woosung Park, Giuseppe Romano, Ethan C. Ahn, Takashi Kodama, Joonsuk Park, Michael T. Barako, Joon Sohn, Soo Jin Kim, Jungwan Cho, Amy M. Marconnet, Mehdi Asheghi, Alexie M. Kolpak, Kenneth E. Goodson   +12 more
openaire   +4 more sources

A picogram and nanometer scale photonic crystal opto-mechanical cavity [PDF]

, 2008
We describe the design, fabrication, and measurement of a cavity opto-mechanical system consisting of two nanobeams of silicon nitride in the near-field of each other, forming a so-called "zipper" cavity.
A Ashkin, A Schliesser, A Schliesser, B Ilic, B-S Song, C Höhberger, CA Regal, F Marquardt, I Tittonen, J Chan, Jasper Chan, JD Thompson, K Srinivasan, Kerry J. Vahala, M Eichenfield, M Hossein-Zadeh, M Li, M Notomi, Matt Eichenfield, ML Povinelli, MW McCutcheon, O Arcizet, Oskar Painter, PT Rakich, RH Olson, Ryan Camacho, S Gigan, SS Verbridge, SS Verbridge, T Corbitt, TD Stowe, TJ Kippenberg, TJ Kippenberg, TJ Kippenberg, Y Takahashi   +34 more
core   +3 more sources

Multimode Phonon Lasing via Self‐Induced Optical Coherent Pumping

Laser &Photonics Reviews, EarlyView.
A silicon optomechanical nanobeam generates self‐sustained phonon lasing in multiple competing mechanical modes via self‐pulsing, an intrinsic optical modulation arising from cavity nonlinearity. This self‐organized mechanism enables robust multi‐frequency operation spanning periodic, quasi‐periodic, and chaotic regimes without external modulation. The
David Alonso Tomás, Carlos Mas Arabí, Carles Milián, Néstor E. Capuj, Alejandro Martínez, Daniel Navarro Urrios   +5 more
wiley   +1 more source

Experimental Modal Analysis‐Driven Gaussian Process Regression Modeling of Rectangular Steel Beams With Various Hole Geometries

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT Understanding the dynamic behavior of structural components is crucial for optimizing performance and ensuring structural integrity. This study presents a new method that combines a systematic experimental investigation of four distinct hole geometries (circular, square, compact rectangular, and long rectangular) with varying hole counts, all ...
Amir Hossein Rabiee, Majid Rajaei, Mohammad Hossein Mahdavi Nasab, Parsa Shafiei   +3 more
wiley   +1 more source

Investigating Surface Effects on Thermomechanical Behavior of Embedded Circular Curved Nanosize Beams

Journal of Engineering, 2016
To investigate the surface effects on thermomechanical vibration and buckling of embedded circular curved nanosize beams, nonlocal elasticity model is used in combination with surface properties including surface elasticity, surface tension, and surface ...
Farzad Ebrahimi, Mohsen Daman
doaj   +1 more source

Precision Local Strain Engineering in 2D Semiconductors and Their van der Waals Heterostructures

Small, EarlyView.
This review highlights recent advances in experimental techniques for mapping and quantifying strain, strategies for imparting programmable local strain via substrate, stressor, and interlayer coupling, and strain‐engineered functionalities in electronics, photonics, and quantum devices.
Byeong Chan Kim, Yoona Kim, Gwan‐Hyoung Lee   +2 more
wiley   +1 more source

Tin‐Oxo Nanocluster Extreme UV Photoresists Equipped with Chemical Features for Atmospheric Stability and High EUV Sensitivity

Advanced Functional Materials, Volume 36, Issue 27, 2 April 2026.
Fluoroalkyl‐functionalized tin–oxo nanoclusters (N‐TOC6) enable robust pattern formation through ligand crosslinking under EUV exposure without thermal processing. Sn–F coordination mitigates the Lewis acidity of Sn centers, suppressing reactions with airborne molecules and improving post‐exposure pattern stability.
Yejin Ku, Gayoung Kim, Minseung Kim, Hyungju Ahn, Jin‐Kyun Lee, Jiho Kim, Byeong‐Gyu Park, Dohyun Moon, Sangsul Lee, Seohyeon Lee, Yu Ha Jang, Byung Jun Jung, Hyunseok Kim, Changhyeon Lee, Su‐Mi Hur, Ji Young Park, Chawon Koh, Tsunehiro Nishi, Hyun‐Woo Kim   +18 more
wiley   +1 more source