Results 111 to 120 of about 4,136 (218)

Coherent Surface Acoustic Wave Reflection via Microfluidic Phononic Crystal Devices [PDF]

open access: yes, 2017
The integration of surface acoustic wave (SAW) technology with Lab-on-a-Chip (LOC) devices has enabled powerful acoustic mechanisms for cell sorting, cell deflection, and other types of manipulation of biological specimen.
Catelani, Sierra Jade
core  

One-step polymeric phononic crystal manufacture.

open access: yes, 2018
A versatile system to construct bulk polymeric phononic crystals by using acoustic waves is described. In order to fabricate this material, a customised cavity device fitted with a ∼2 MHz acoustic transducer and an acoustic reflector is employed for the ...

core   +1 more source

Focusing of ultrasonic waves by negative refraction in phononic crystals

open access: yesAIP Advances, 2016
Negative refraction and focusing phenomena in phononic crystals is reviewed, starting with their initial discovery over 10 years ago in flat three-dimensional (3D) phononic crystals.
J. H. Page
doaj   +1 more source

Tuning of narrow-bandwidth photonic crystal devices etched in InGaAsP planar waveguides by Liquid Crystal infiltration

open access: yes, 2016
Photonic crystal (PC) devices in the InP/InGaAsP/InP planar waveguide system exhibiting narrow bandwidth features were investigated for use as ultrasmall and tunable building blocks for photonic integrated circuits at the telecom wavelength of 1.55 μm.
Kicken, H H J E   +8 more
core   +1 more source

Experimental demonstration of directional acoustic radiation based on two-dimensional phononic crystal band edge states

open access: yes, 2007
The authors have experimentally studied the radiation of a point acoustic source placed inside a two-dimensional phononic crystal of square lattice. They show that a highly directional radiation with a half-power angular width of 6° can be achieved when ...
Liu, Zhengyou   +15 more
core   +1 more source

Phononic-Crystal-Based SAW Magnetic-Field Sensors. [PDF]

open access: yesMicromachines (Basel), 2023
Samadi M   +4 more
europepmc   +1 more source

1D and 2D Phononic Crystal Sensor

open access: yes, 2010
Acoustic band gap materials, so-called phononic crystals, provide a new sensor platform for determination of material properties in small cavities.
J. Li   +7 more
core   +1 more source

Phonons in electron crystals with Berry curvature

open access: yesProceedings of the National Academy of Sciences
Recent advances in 2D materials featuring nonzero Berry curvature have inspired extensions of the Wigner crystallization paradigm. This paper derives a low-energy effective theory for such quantum crystals, including the anomalous Hall crystal (AHC) with nonzero Chern number.
Junkai Dong   +4 more
openaire   +4 more sources

Mechanism and optimization study of bandgap regulation in three-component hexagonal lattice phononic crystals

open access: yesAIP Advances
To investigate how to achieve broader bandgaps within the mid-to-low frequency spectrum, this paper first designs a three-component hexagonal lattice phononic crystal structure and uses the FEM approach to analyze its band characteristics and ...
Bao-hua Yu, Li-ming Lin, Hua-wei Ji
doaj   +1 more source

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