Results 51 to 60 of about 7,435 (167)

Optical design of split-beam photonic crystal nanocavities

, 2013
We design high quality factor photonic crystal nanobeam cavities formed by two mechanically isolated cantilevers. These "split-beam" cavities have a physical gap at the center, allowing mechanical excitations of one or both of the cavity halves. They are
Barclay, Paul E., Hryciw, Aaron C.
core   +1 more source

Optomechanical zipper cavity lasers: theoretical analysis of tuning range and stability [PDF]

, 2009
The design of highly wavelength tunable semiconductor laser structures is presented. The system is based on a one dimensional photonic crystal cavity consisting of two patterned, doubly-clamped nanobeams, otherwise known as a "zipper" cavity.
Björk, Bruce, Camacho, Chan, Coldren, Day, Diehl, Eichenfield, Eichenfield, Hard, Haus, Hill, Huang, Hwang, Johnson, Kippenberg, Kippenberg, Kitamura, Lee, Lin, Liu, Liu, Liu, Maboudian, Matsui, Moreau, Oskar Painter, Perahia, Raviv Perahia, Rice, Rosenberg, Seo, Sillanpaa, Slusher, Srinivasan, Srinivasan, Stintz, Tas, Thiago P. Mayer Alegre   +38 more
core   +2 more sources

Mechanical Stress Evolution in Polycrystalline Ge Thin Films Under MeV Ion Irradiation

Advanced Materials Interfaces, EarlyView.
Irradiation of polycrystalline Ge thin films with 1.8 MeV Au ions alters residual stress through defect generation and lattice expansion. Increasing fluence drives progressive lattice disorder and eventual amorphization. Polycrystalline Ge resists amorphization longer than crystalline Ge, as grain boundaries facilitate defect diffusion, significantly ...
Karla J. Paz Corrales, Aaron Reupert, Kevin Lubig, Frank A. Müller, Berit Marx‐Glowna, Ralf Röhlsberger, Till Weickhardt, Giancarlo Soavi, Martin Hafermann, Elke Wendler, Carsten Ronning   +10 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  

Silicon On-Chip One-Dimensional Photonic Crystal Nanobeam Bandgap Filter Integrated With Nanobeam Cavity for Accurate Refractive Index Sensing

IEEE Photonics Journal, 2016
A novel method for integration of high-performance 1-D photonic crystal nanobeam bandgap filter (1-D PC-NBF) and high-sensitivity 1-D PC nanobeam cavity sensor (1-D PC-NCS) is proposed on a monolithic silicon chip. The 1-D PC-NBF consists of a simple 1-D
Daquan Yang, Chuan Wang, Yuefeng Ji
doaj   +1 more source

Deterministic design of wavelength scale, ultra-high Q photonic crystal nanobeam cavities

, 2011
Photonic crystal nanobeam cavities are versatile platforms of interest for optical communications, optomechanics, optofluidics, cavity QED, etc. In a previous work \cite{quan10}, we proposed a deterministic method to achieve ultrahigh \emph{Q} cavities ...
Ahn, Akahane, Armani, Burger, Chan, Ctyroky, Deotare, Eichenfield, Englund, Foresi, Geremia, Grier, Haret, John, Johnson, Kuraamochi, Kuramochi, Lalanne, Leuthold, Marko Loncar, McCutcheon, Md Zain, Notomi, Nozaki, O’Brien, Painter, Palamaru, Psaltis, Qimin Quan, Quan, Reitzenstein, Soltani, Song, Srinivasan, Tanaka, Tomljenovic-Hanic, Vahala, Van Thourhout, Velha, Vernooy, Vuckovic, Vuckovic, Watts, Yablonovitch, Zhang   +44 more
core   +1 more source

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

Modeling Dispersive Coupling and Losses of Localized Optical and Mechanical Modes in Optomechanical Crystals [PDF]

, 2009
Periodically structured materials can sustain both optical and mechanical excitations which are tailored by the geometry. Here we analyze the properties of dispersively coupled planar photonic and phononic crystals: optomechanical crystals. In particular,
Amir H. Safavi-Naeini, Arcizet, Arcizet, Braginsky, Braginsky, Caballero, Chan, Dorsel, Duwel, Eichenfield, El-Kady, Favero, Foresi, Gigan, Houston, Jasper Chan, Johnson, Kang, Kerry J. Vahala, Kippenberg, Kippenberg, Kippenberg, Kleckner, Kushwaha, Maldovan, Matt Eichenfield, McCutcheon, Meystre, Montero de Espinosa, Notomi, Oskar Painter, Painter, Painter, Pinard, Robertson, Sauvan, Schliesser, Song, Srinivasan, Tittonen, Velha, Yi   +41 more
core   +2 more sources

New Directions in Focused Ion Beam Induced Deposition for the Nanoprinting of Functional 3D Heterostructures

Advanced Materials Technologies, EarlyView.
Here, it is shown that focused ion beam induced deposition (FIBID) using helium and neon ions enables advanced high‐resolution 3D nanoprinting achieving precise multimaterial architectures and engineered internal voids. Thus, FIBID with finely focused noble gas ion species is presented as a unique platform for designing functional nanomaterials for ...
Frances Isabel Allen
wiley   +1 more source

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