Apparatus for time-resolved measurements of acoustic birefringence in particle dispersions

M. E. Giardini; I. Cristiani; R. Piazza; V. Degiorgio

doi:10.1063/1.1146049

Apparatus for time-resolved measurements of acoustic birefringence in particle dispersions

M. E. Giardini
, I. Cristiani
, R. Piazza
, V. Degiorgio

Research output: Contribution to journal › Article › peer-review

Abstract

An apparatus for time‐resolved measurements of the birefringence induced in a particle suspension by an acoustic wave pulse is described. Efficient acoustic coupling is obtained by operating near the transducer resonant frequency and by matching the acoustic impedances of the cell constituents. An almost‐overdamped acoustic configuration can alternatively be employed whenever a faster response is needed. Careful design of the optical setup and of the detection unit minimize diffraction and stress‐birefringence parasitic effects and yields a good responsivity at fairly low acoustic intensities. A test of the apparatus on a colloidal suspension of PTFE rodlike particles is presented and discussed.

Original language	English
Pages (from-to)	1077-1082
Journal	Review of Scientific Instruments
Volume	66
Issue number	2
DOIs	https://doi.org/10.1063/1.1146049
Publication status	Published - 1 Feb 1995

Keywords

colloidal systems
acoustics
birefringence
Kerr effect

ASJC Scopus subject areas

Acoustics and Ultrasonics
Condensed Matter Physics
Atomic and Molecular Physics, and Optics

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10.1063/1.1146049

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title = "Apparatus for time-resolved measurements of acoustic birefringence in particle dispersions",

abstract = "An apparatus for time‐resolved measurements of the birefringence induced in a particle suspension by an acoustic wave pulse is described. Efficient acoustic coupling is obtained by operating near the transducer resonant frequency and by matching the acoustic impedances of the cell constituents. An almost‐overdamped acoustic configuration can alternatively be employed whenever a faster response is needed. Careful design of the optical setup and of the detection unit minimize diffraction and stress‐birefringence parasitic effects and yields a good responsivity at fairly low acoustic intensities. A test of the apparatus on a colloidal suspension of PTFE rodlike particles is presented and discussed.",

keywords = "colloidal systems, acoustics, birefringence, Kerr effect",

author = "Giardini, \{M. E.\} and I. Cristiani and R. Piazza and V. Degiorgio",

year = "1995",

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doi = "10.1063/1.1146049",

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TY - JOUR

T1 - Apparatus for time-resolved measurements of acoustic birefringence in particle dispersions

AU - Giardini, M. E.

AU - Cristiani, I.

AU - Piazza, R.

AU - Degiorgio, V.

PY - 1995/2/1

Y1 - 1995/2/1

N2 - An apparatus for time‐resolved measurements of the birefringence induced in a particle suspension by an acoustic wave pulse is described. Efficient acoustic coupling is obtained by operating near the transducer resonant frequency and by matching the acoustic impedances of the cell constituents. An almost‐overdamped acoustic configuration can alternatively be employed whenever a faster response is needed. Careful design of the optical setup and of the detection unit minimize diffraction and stress‐birefringence parasitic effects and yields a good responsivity at fairly low acoustic intensities. A test of the apparatus on a colloidal suspension of PTFE rodlike particles is presented and discussed.

AB - An apparatus for time‐resolved measurements of the birefringence induced in a particle suspension by an acoustic wave pulse is described. Efficient acoustic coupling is obtained by operating near the transducer resonant frequency and by matching the acoustic impedances of the cell constituents. An almost‐overdamped acoustic configuration can alternatively be employed whenever a faster response is needed. Careful design of the optical setup and of the detection unit minimize diffraction and stress‐birefringence parasitic effects and yields a good responsivity at fairly low acoustic intensities. A test of the apparatus on a colloidal suspension of PTFE rodlike particles is presented and discussed.

KW - colloidal systems

KW - acoustics

KW - birefringence

KW - Kerr effect

U2 - 10.1063/1.1146049

DO - 10.1063/1.1146049

M3 - Article

SN - 0034-6748

VL - 66

SP - 1077

EP - 1082

JO - Review of Scientific Instruments

JF - Review of Scientific Instruments

IS - 2

ER -

Apparatus for time-resolved measurements of acoustic birefringence in particle dispersions

Abstract

Keywords

ASJC Scopus subject areas

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