University of Illinois Urbana-Champaign

Design and implementation of a PVDF transducer system for photoacoustic microscopy

Arshad, Bilal

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https://hdl.handle.net/2142/99971

Description

Title
Design and implementation of a PVDF transducer system for photoacoustic microscopy
Author(s)
Arshad, Bilal
Contributor(s)
Gao, Liang
Issue Date
2018-05
Keyword(s)
  • Photoacoustic
  • flouride
  • transducer
  • gold
  • nanoparticles
  • polyvinylidene
  • PDVF
Abstract
Photoacoustic tomography is an imaging modality primarily used in research that has become increasingly common in clinical practice. This technique of imaging is based on the photoacoustic effect. Using a pulsed laser, a sample is heated. The expansion and contraction of the sample following the absorption of light creates an ultrasonic wave. The ultrasonic wave is detected using a piezoelectric transducer by converting changes in pressure to an electrical charge. With the detection of the acoustic waves, a full image of the sample can be rendered with high spatial resolution and contrast compared to traditional optical imaging systems. The goal of my group’s research is to use a polyvinylidene fluoride (PVDF) transducer to image various biological tissue. The benefits of a PVDF transducer include higher bandwidth, outstanding mechanical flexibility, and a center frequency near the resonance frequency of the biological tissue. The spatial resolution of this transducer system approaches 10 m. Currently, the group is imaging gold nanoparticles, and samples of skin tissue.
Type of Resource
text
Language
en
Permalink
http://hdl.handle.net/2142/99971

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