20,105 research outputs found
Hui tu zhen ben jing shi mu yu jin gang zuan
No full text著作者余好辯, 伍憤時.Cover title.上下卷.On double leaves, East Asian binding.木魚歌文.zhu zuo zhe Yu Haobian, Wu Fenshi.Shang xia juan.Mu yu ge wen
Dynamics of nanomechanical metamaterials: Pico-vibrometry with light and electron beams
No full textWe report on the detection and quantitative mapping of picometre (sub-atomic) amplitude, thermal (phonon-induced) and driven movements in photonic nanostructures, using light and electron beams. These techniques enable measurements of the dynamic mechanical properties that underpin the functionality of a growing range of micro/nano-opto-mechanical (meta)materials, devices, sensors and systems, and present new opportunities in the exploration of fundamental nonequilibrium (opto)mechanics.<br/
Flat photonic devices based on nanomechanical metamaterials driven by light, sound, electric and magnetic signals
No full textDataset for Thermal fluctuations of the optical properties of nanomechanical photonic metamaterials
No full textThis research dataset should be interpreted and understood in the context of the corresponding manuscript, which has been published in Advanced Optical Materials with DOI: 10.1002/adom.202101591. All relevant information regarding the dataset, how it was obtained and its context is contained in the manuscript. The data correspond to the data shown in the figures of the manuscript.</span
Experimental observations of thermal fluctuations of metamaterial optical properties
No full textWe demonstrate that fluctuations in the optical properties of nanomechanical photonic metamaterials can reach 1% at room temperature. Such fluctuations arise from ‘Brownian’ motion and peak at the frequencies of the nanostructures’ natural mechanical modes
Mechanisms of spontaneous synchronization in photonic metamaterial continuous time crystals
No full textWe have demonstrated that a classical metamaterial nanostructure, a two-dimensional array of plasmonic metamolecules supported on flexible nanowires, can be driven to a state possessing all the key features of a continuous time crystal - an eagerly-sought state of matter with properties periodic in time, rather than in space.The phenomenon points to the possibility of a new mechanism for the synchronization of noise-driven, linear oscillators based upon non-reciprocal coupling (non-Hamiltonian optical forces) between metamolecules
Nonlinear nanomechanical photonic metamaterials
No full textBy harnessing mechanical and optical resonances in tandem one can enhance the magnitude of actuation and optical response in dynamically reconfigurable nanostructures driven by microwatt optical signals and low-intensity acoustic vibrations. We review recent work on structures exhibiting profound opto-mechanical nonlinearity and bistability
Metamaterial Nanomachines driven by heat, sound, electric and magnetic fields, and light
No full textWe review recent advances in the physics and technology of plasmonic and dielectric nanomechanical metamaterials, wherein optical and mechanical resonances can be coupled to provide a plethora of dynamic photonic functionalities. External electric, magnetic, thermal, acoustic and optical stimuli drive pico/nanometric displacements of the metamaterial building blocks, modulating optical properties at MHz frequencies
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