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Title: Demonstration of acoustic waveguiding and tight bending in phononic crystals

Journal Article · · Applied Physics Letters
DOI:https://doi.org/10.1063/1.4966463· OSTI ID:1335468
 [1];  [2];  [2];  [3];  [1];  [3]
  1. Kansas State Univ., Manhattan, KS (United States)
  2. Univ. of New Mexico, Albuquerque, NM (United States)
  3. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

The systematic design, fabrication, and characterization of an isolated, single-mode, 90° bend phononic crystal (PnC) waveguide are presented. A PnC consisting of a 2D square array of circular air holes in an aluminum substrate is used, and waveguides are created by introducing a line defect in the PnC lattice. A high transmission coefficient is observed (–1 dB) for the straight sections of the waveguide, and an overall 2.3 dB transmission loss is observed (a transmission coefficient of 76%) for the 90° bend. Further optimization of the structure may yield higher transmission efficiencies. Lastly, this manuscript shows the complete design process for an engineered 90° bend PnC waveguide from inception to experimental demonstration.

Research Organization:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC04-94AL85000
OSTI ID:
1335468
Report Number(s):
SAND-2016-9696J; APPLAB; 649561
Journal Information:
Applied Physics Letters, Vol. 109, Issue 18; ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 25 works
Citation information provided by
Web of Science

References (27)

Guiding and bending of acoustic waves in highly confined phononic crystal waveguides journal May 2004
Elastic wave band gaps and defect states in two-dimensional composites journal March 1997
Surface acoustic waves in two-dimensional periodic elastic structures journal September 1998
Realizing the frequency quality factor product limit in silicon via compact phononic crystal resonators journal October 2010
The effect of stiffness and mass on coupled oscillations in a phononic crystal journal November 2013
Trapping and guiding of acoustic waves by defect modes in a full-band-gap ultrasonic crystal journal December 2003
Compact bends for multi-mode photonic crystal waveguides with high transmission and suppressed modal crosstalk journal January 2013
Tunable filtering and demultiplexing in phononic crystals with hollow cylinders journal April 2004
Frequency Modulation in the Transmittivity of Wave Guides in Elastic-Wave Band-Gap Materials journal November 2000
Microscale inverse acoustic band gap structure in aluminum nitride journal August 2009
Acoustic band structure of periodic elastic composites journal September 1993
Experimental Studies on Two-Dimensional Defect-Mode Waveguides in a Sonic/Phononic Crystal journal July 2007
Improved combined wave number eigenvalue equations method for band structure calculations of metal photonic crystal journal April 2012
High-Q micromechanical resonators in a two-dimensional phononic crystal slab journal February 2009
Enhanced plane wave expansion analysis for the band structure of bulk modes in two-dimensional high-contrast solid–solid phononic crystals journal November 2014
Propagation of surface acoustic waves through sharply bent two-dimensional phononic crystal waveguides using a finite-difference time-domain method journal November 2006
Thermal transport in phononic crystals and the observation of coherent phonon scattering at room temperature journal June 2015
Transmittivity through straight and stublike waveguides in a two-dimensional phononic crystal journal May 2002
Phononic crystals operating in the gigahertz range with extremely wide band gaps journal November 2010
Scalability of phononic crystal heterostructures journal September 2005
Effects of flexural and extensional excitation modes on the transmission spectrum of phononic crystals operating at gigahertz frequencies journal March 2013
Control of coherent information via on-chip photonic–phononic emitter–receivers journal March 2015
Evidence of large high frequency complete phononic band gaps in silicon phononic crystal plates journal June 2008
Acoustic Defect-Mode Waveguides Fabricated in Sonic Crystal: Numerical Analyses by Elastic Finite-Difference Time-Domain Method journal May 2006
Ultra-high frequency, high Q/volume micromechanical resonators in a planar AlN phononic crystal journal July 2016
Microfabricated phononic crystal devices and applications journal November 2008
Enhancing Mechanical Quality Factors of Micro-Toroidal Optomechanical Resonators Using Phononic Crystals journal April 2016

Cited By (8)

Experimental realization of on-chip topological nanoelectromechanical metamaterials journal December 2018
Acoustic waveguiding in a silicon carbide phononic crystals at microwave frequencies journal March 2018
Experimental evidence of quadrupolar whispering-gallery modes in phononic crystal based waveguides journal August 2019
Spatial distribution of the phononic crystal modes excited by a moving laser source journal December 2019
Subwavelength and directional control of flexural waves in zone-folding induced topological plates journal February 2018
Conformally Mapped Multifunctional Acoustic Metamaterial Lens for Spectral Sound Guiding and Talbot Effect journal November 2019
Subwavelength and directional control of flexural waves in zone-folding induced topological plates text January 2017
“Deflecting elastic prism” and unidirectional localisation for waves in chiral elastic systems journal January 2017

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