Viscoelastic shear wave at thermal steady state in gelatin

Sheng Yi Chang, Chien Wa Ho, Tong Sheng Hsieh, Li Ping Yu, Chien Chou

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Viscoelastic shear waves (VESW) propagation in soft matters such as gelatin under thermal steady state was studied. VESW in a slab of gelatin causes the transverse displacement of the surface in a harmonic wave. The harmonic oscillation frequency of the transverse displacement of gelatin surface was then measured in real time in order to measure the modulus of rigidity of gelatin in terms of the measured oscillation frequency. A polarized heterodyne interferometer (PHI) was setup in this experiment which enables to precisely measure the transverse displacement of surface in real time at 0.3 nm resolution. This results in the proposed VESW method able to characterize gelatin soft material in real time. From the experimental demonstration, the properties of VESW propagation in soft material at thermal steady state potentially can become a novel nano-scale non-intrusion strain-stress sensor able to characterize the modulus rigidity of soft material.

Original languageEnglish
Title of host publicationPlasmonics in Biology and Medicine X
DOIs
StatePublished - 2013
Externally publishedYes
EventPlasmonics in Biology and Medicine X - San Francisco, CA, United States
Duration: 03 02 201304 02 2013

Publication series

NameProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume8597
ISSN (Print)1605-7422

Conference

ConferencePlasmonics in Biology and Medicine X
Country/TerritoryUnited States
CitySan Francisco, CA
Period03/02/1304/02/13

Keywords

  • polarized heterodyne interferometer
  • strain-stress sensor
  • surface rigidity modulus
  • viscoelastic shear wave

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