Real-time simulations and experiments on ultrahigh frequency surface waves in micro-structured phononic crystals

I.A. Veres; Dieter M. Profunser; Oliver B. Wright; Osamu Matsuda; Udo Lang

doi:10.1109/ULTSYM.2009.5441862

Real-time simulations and experiments on ultrahigh frequency surface waves in micro-structured phononic crystals

I.A. Veres, Dieter M. Profunser, Oliver B. Wright, Osamu Matsuda, Udo Lang

Electronic And Electrical Engineering

Research output: Contribution to conference › Paper

Abstract

We investigate experimentally and by numerical simulation the interaction between ultrahigh frequency surface acoustic waves (SAW) and periodic microstructures. We use both one-dimensional (1D) phononic crystals consisting of copper lines embedded in silicon oxide and 2D phononic crystals consisting of air-filled holes etched as a square lattice in a silicon substrate. Experimental results obtained by ultrashort pulsed optical excitation and interferometric detection are compared to time-domain finite element (FEM) simulations of the propagating ultrahigh frequency SAW with frequency components up to ~1 GHz in these phononic crystals, allowing the investigation of SAW scattering and phononic band structure. Good agreement was obtained between simulation and experiment.

Original language	English
Pages	1032-1035
Number of pages	4
DOIs	https://doi.org/10.1109/ULTSYM.2009.5441862
Publication status	Published - Sept 2009
Event	2009 IEEE Ultrasonics Symposium - Rome, Italy Duration: 20 Sept 2009 → 23 Sept 2009

Conference

Conference	2009 IEEE Ultrasonics Symposium
Country/Territory	Italy
City	Rome
Period	20/09/09 → 23/09/09

Keywords

ultrahigh frequency surface waves
phononic crystals
periodic microstructures

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10.1109/ULTSYM.2009.5441862

Cite this

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title = "Real-time simulations and experiments on ultrahigh frequency surface waves in micro-structured phononic crystals",

abstract = "We investigate experimentally and by numerical simulation the interaction between ultrahigh frequency surface acoustic waves (SAW) and periodic microstructures. We use both one-dimensional (1D) phononic crystals consisting of copper lines embedded in silicon oxide and 2D phononic crystals consisting of air-filled holes etched as a square lattice in a silicon substrate. Experimental results obtained by ultrashort pulsed optical excitation and interferometric detection are compared to time-domain finite element (FEM) simulations of the propagating ultrahigh frequency SAW with frequency components up to ~1 GHz in these phononic crystals, allowing the investigation of SAW scattering and phononic band structure. Good agreement was obtained between simulation and experiment.",

keywords = "ultrahigh frequency surface waves, phononic crystals, periodic microstructures",

author = "I.A. Veres and Profunser, {Dieter M.} and Wright, {Oliver B.} and Osamu Matsuda and Udo Lang",

year = "2009",

month = sep,

doi = "10.1109/ULTSYM.2009.5441862",

language = "English",

pages = "1032--1035 ",

note = "2009 IEEE Ultrasonics Symposium ; Conference date: 20-09-2009 Through 23-09-2009",

}

TY - CONF

T1 - Real-time simulations and experiments on ultrahigh frequency surface waves in micro-structured phononic crystals

AU - Veres, I.A.

AU - Profunser, Dieter M.

AU - Wright, Oliver B.

AU - Matsuda, Osamu

AU - Lang, Udo

PY - 2009/9

Y1 - 2009/9

N2 - We investigate experimentally and by numerical simulation the interaction between ultrahigh frequency surface acoustic waves (SAW) and periodic microstructures. We use both one-dimensional (1D) phononic crystals consisting of copper lines embedded in silicon oxide and 2D phononic crystals consisting of air-filled holes etched as a square lattice in a silicon substrate. Experimental results obtained by ultrashort pulsed optical excitation and interferometric detection are compared to time-domain finite element (FEM) simulations of the propagating ultrahigh frequency SAW with frequency components up to ~1 GHz in these phononic crystals, allowing the investigation of SAW scattering and phononic band structure. Good agreement was obtained between simulation and experiment.

AB - We investigate experimentally and by numerical simulation the interaction between ultrahigh frequency surface acoustic waves (SAW) and periodic microstructures. We use both one-dimensional (1D) phononic crystals consisting of copper lines embedded in silicon oxide and 2D phononic crystals consisting of air-filled holes etched as a square lattice in a silicon substrate. Experimental results obtained by ultrashort pulsed optical excitation and interferometric detection are compared to time-domain finite element (FEM) simulations of the propagating ultrahigh frequency SAW with frequency components up to ~1 GHz in these phononic crystals, allowing the investigation of SAW scattering and phononic band structure. Good agreement was obtained between simulation and experiment.

KW - ultrahigh frequency surface waves

KW - phononic crystals

KW - periodic microstructures

UR - http://ewh.ieee.org/conf/ius_2009/media/IUS2009%20-%20Abstract.pdf

U2 - 10.1109/ULTSYM.2009.5441862

DO - 10.1109/ULTSYM.2009.5441862

M3 - Paper

SP - 1032

EP - 1035

T2 - 2009 IEEE Ultrasonics Symposium

Y2 - 20 September 2009 through 23 September 2009

ER -

Real-time simulations and experiments on ultrahigh frequency surface waves in micro-structured phononic crystals

Abstract

Conference

Keywords

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Ultrasonic Measurement and Beamforming using Optical Sensors

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Real-time simulations and experiments on ultrahigh frequency surface waves in micro-structured phononic crystals

Abstract

Conference

Keywords

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Other files and links

Fingerprint

Projects

Ultrasonic Measurement and Beamforming using Optical Sensors

Cite this