Optimization of focusing SAW propagation in piezoelectric medium for microfluidic applications

In this study, a 2D axisymmetric finite element model of annular surface acoustic wave (A-SAW) resonator to evaluate the SAW propagation was modeled and its focusing properties on lithium niobate substrate was optimized. The analysis concept is based on utilization of patterned annular interdigit...

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Main Authors:	Abd Aziz, Norazreen, Bais, Badariah, Buyong, Muhamad Ramdzan, Majlis, Yeop Burhanuddin, Nordin, Anis Nurashikin
Format:	Conference or Workshop Item
Language:	English
Published:	2015
Subjects:	TK7800 Electronics. Computer engineering. Computer hardware. Photoelectronic devices
Online Access:	http://irep.iium.edu.my/45281/ http://irep.iium.edu.my/45281/ http://irep.iium.edu.my/45281/1/45281.pdf

id	iium-45281
recordtype	eprints
spelling	iium-452812015-10-26T08:31:40Z http://irep.iium.edu.my/45281/ Optimization of focusing SAW propagation in piezoelectric medium for microfluidic applications Abd Aziz, Norazreen Bais, Badariah Buyong, Muhamad Ramdzan Majlis, Yeop Burhanuddin Nordin, Anis Nurashikin TK7800 Electronics. Computer engineering. Computer hardware. Photoelectronic devices In this study, a 2D axisymmetric finite element model of annular surface acoustic wave (A-SAW) resonator to evaluate the SAW propagation was modeled and its focusing properties on lithium niobate substrate was optimized. The analysis concept is based on utilization of patterned annular interdigital electrodes on piezoelectric substrate’s surface to generate surface acoustic waves with high intensity in a confined localized area.From the simulation results, it can be observed that acoustic amplitude field, displacement contours and waves propagation direction are significantly influenced by the geometric parameters of the device. Increasing number of finger pairs of annular electrodes produces high displacement amplitude meanwhile devices with smaller electrodes’ gap of 25 μm induced steeper focusing gradient compared to devices with 50 μm electrodes’ gap. Acoustic waves from device with large inner diameter of 500 μm require more time to be focused at the center of the device. From the analysis, it can be concluded that small diffraction limited acoustic spot at the center of A-SAW device is suitable for microfluidics application that requires detection or manipulation of localized variations. 2015-04-27 Conference or Workshop Item PeerReviewed application/pdf en http://irep.iium.edu.my/45281/1/45281.pdf Abd Aziz, Norazreen and Bais, Badariah and Buyong, Muhamad Ramdzan and Majlis, Yeop Burhanuddin and Nordin, Anis Nurashikin (2015) Optimization of focusing SAW propagation in piezoelectric medium for microfluidic applications. In: 2015 Symposium on Design, Test, Integration and Packaging of MEMS/MOEMS (DTIP), 27th-30th April 2015, Montpellier, France. http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=7161011&punumber%3D7153073%26filter%3DAND(p_IS_Number%3A7160955)%26pageNumber%3D3
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	TK7800 Electronics. Computer engineering. Computer hardware. Photoelectronic devices
spellingShingle	TK7800 Electronics. Computer engineering. Computer hardware. Photoelectronic devices Abd Aziz, Norazreen Bais, Badariah Buyong, Muhamad Ramdzan Majlis, Yeop Burhanuddin Nordin, Anis Nurashikin Optimization of focusing SAW propagation in piezoelectric medium for microfluidic applications
description	In this study, a 2D axisymmetric finite element model of annular surface acoustic wave (A-SAW) resonator to evaluate the SAW propagation was modeled and its focusing properties on lithium niobate substrate was optimized. The analysis concept is based on utilization of patterned annular interdigital electrodes on piezoelectric substrate’s surface to generate surface acoustic waves with high intensity in a confined localized area.From the simulation results, it can be observed that acoustic amplitude field, displacement contours and waves propagation direction are significantly influenced by the geometric parameters of the device. Increasing number of finger pairs of annular electrodes produces high displacement amplitude meanwhile devices with smaller electrodes’ gap of 25 μm induced steeper focusing gradient compared to devices with 50 μm electrodes’ gap. Acoustic waves from device with large inner diameter of 500 μm require more time to be focused at the center of the device. From the analysis, it can be concluded that small diffraction limited acoustic spot at the center of A-SAW device is suitable for microfluidics application that requires detection or manipulation of localized variations.
format	Conference or Workshop Item
author	Abd Aziz, Norazreen Bais, Badariah Buyong, Muhamad Ramdzan Majlis, Yeop Burhanuddin Nordin, Anis Nurashikin
author_facet	Abd Aziz, Norazreen Bais, Badariah Buyong, Muhamad Ramdzan Majlis, Yeop Burhanuddin Nordin, Anis Nurashikin
author_sort	Abd Aziz, Norazreen
title	Optimization of focusing SAW propagation in piezoelectric medium for microfluidic applications
title_short	Optimization of focusing SAW propagation in piezoelectric medium for microfluidic applications
title_full	Optimization of focusing SAW propagation in piezoelectric medium for microfluidic applications
title_fullStr	Optimization of focusing SAW propagation in piezoelectric medium for microfluidic applications
title_full_unstemmed	Optimization of focusing SAW propagation in piezoelectric medium for microfluidic applications
title_sort	optimization of focusing saw propagation in piezoelectric medium for microfluidic applications
publishDate	2015
url	http://irep.iium.edu.my/45281/ http://irep.iium.edu.my/45281/ http://irep.iium.edu.my/45281/1/45281.pdf
first_indexed	2023-09-18T21:04:28Z
last_indexed	2023-09-18T21:04:28Z
_version_	1777410840484380672

Optimization of focusing SAW propagation in piezoelectric medium for microfluidic applications

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