Spectrally resolved sonoluminescence as a probe of cavitation

Kenneth S Suslick; Kathleen A. Kemper; Edward B. Flint

Spectrally resolved sonoluminescence as a probe of cavitation

Kenneth S Suslick, Kathleen A. Kemper, Edward B. Flint

Chemistry

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

The collapse of bubbles during acoustic cavitation in liquids generates intense local heating, either by adiabatic compression or through shock wave formation. We have been able to quantify local temperatures by spectroscopic analysis of sonoluminescence from cavitating bubble clouds. Sonoluminescence in hydrocarbon liquids closely resembles flame emission. From hydrocarbons or silicone oil, emission from excited states of diatomic carbon, C₂, are observed; the rotational and vibrational fine structure of this emission permits a spectroscopic determination of the emission temperature of the excited states of C₂, which is ≈5100 K. Sonoluminescence from excited state metal atoms is produced during sonolysis of volatile metal carbonyls. Linewidth analysis of this emission permits us to determine collisional lifetimes of the emitting atoms and hence to estimate effective local pressures during cavitation. The calculated pressure experienced by Cr atoms during emission from Cr(CO)₆ is 1700 atmospheres (1.72 kBar).

Original language	English (US)
Title of host publication	Proceedings of the IEEE Ultrasonics Symposium
Publisher	Publ by IEEE
Pages	777-783
Number of pages	7
Volume	2
ISBN (Print)	0780312783
State	Published - 1993
Event	Proceedings of the IEEE 1993 Ultrasonics Symposium - Baltimore, MD, USA Duration: Oct 31 1993 → Nov 3 1993

Other

Other	Proceedings of the IEEE 1993 Ultrasonics Symposium
City	Baltimore, MD, USA
Period	10/31/93 → 11/3/93

ASJC Scopus subject areas

Engineering(all)

Cite this

@inproceedings{c102016826004d219b818384ffcf5848,

title = "Spectrally resolved sonoluminescence as a probe of cavitation",

abstract = "The collapse of bubbles during acoustic cavitation in liquids generates intense local heating, either by adiabatic compression or through shock wave formation. We have been able to quantify local temperatures by spectroscopic analysis of sonoluminescence from cavitating bubble clouds. Sonoluminescence in hydrocarbon liquids closely resembles flame emission. From hydrocarbons or silicone oil, emission from excited states of diatomic carbon, C2, are observed; the rotational and vibrational fine structure of this emission permits a spectroscopic determination of the emission temperature of the excited states of C2, which is ≈5100 K. Sonoluminescence from excited state metal atoms is produced during sonolysis of volatile metal carbonyls. Linewidth analysis of this emission permits us to determine collisional lifetimes of the emitting atoms and hence to estimate effective local pressures during cavitation. The calculated pressure experienced by Cr atoms during emission from Cr(CO)6 is 1700 atmospheres (1.72 kBar).",

author = "Suslick, {Kenneth S} and Kemper, {Kathleen A.} and Flint, {Edward B.}",

year = "1993",

language = "English (US)",

isbn = "0780312783",

volume = "2",

pages = "777--783",

booktitle = "Proceedings of the IEEE Ultrasonics Symposium",

publisher = "Publ by IEEE",

note = "Proceedings of the IEEE 1993 Ultrasonics Symposium ; Conference date: 31-10-1993 Through 03-11-1993",

}

TY - GEN

T1 - Spectrally resolved sonoluminescence as a probe of cavitation

AU - Suslick, Kenneth S

AU - Kemper, Kathleen A.

AU - Flint, Edward B.

PY - 1993

Y1 - 1993

N2 - The collapse of bubbles during acoustic cavitation in liquids generates intense local heating, either by adiabatic compression or through shock wave formation. We have been able to quantify local temperatures by spectroscopic analysis of sonoluminescence from cavitating bubble clouds. Sonoluminescence in hydrocarbon liquids closely resembles flame emission. From hydrocarbons or silicone oil, emission from excited states of diatomic carbon, C2, are observed; the rotational and vibrational fine structure of this emission permits a spectroscopic determination of the emission temperature of the excited states of C2, which is ≈5100 K. Sonoluminescence from excited state metal atoms is produced during sonolysis of volatile metal carbonyls. Linewidth analysis of this emission permits us to determine collisional lifetimes of the emitting atoms and hence to estimate effective local pressures during cavitation. The calculated pressure experienced by Cr atoms during emission from Cr(CO)6 is 1700 atmospheres (1.72 kBar).

AB - The collapse of bubbles during acoustic cavitation in liquids generates intense local heating, either by adiabatic compression or through shock wave formation. We have been able to quantify local temperatures by spectroscopic analysis of sonoluminescence from cavitating bubble clouds. Sonoluminescence in hydrocarbon liquids closely resembles flame emission. From hydrocarbons or silicone oil, emission from excited states of diatomic carbon, C2, are observed; the rotational and vibrational fine structure of this emission permits a spectroscopic determination of the emission temperature of the excited states of C2, which is ≈5100 K. Sonoluminescence from excited state metal atoms is produced during sonolysis of volatile metal carbonyls. Linewidth analysis of this emission permits us to determine collisional lifetimes of the emitting atoms and hence to estimate effective local pressures during cavitation. The calculated pressure experienced by Cr atoms during emission from Cr(CO)6 is 1700 atmospheres (1.72 kBar).

UR - http://www.scopus.com/inward/record.url?scp=0027844590&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0027844590&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:0027844590

SN - 0780312783

VL - 2

SP - 777

EP - 783

BT - Proceedings of the IEEE Ultrasonics Symposium

PB - Publ by IEEE

T2 - Proceedings of the IEEE 1993 Ultrasonics Symposium

Y2 - 31 October 1993 through 3 November 1993

ER -

Spectrally resolved sonoluminescence as a probe of cavitation

Abstract

Other

ASJC Scopus subject areas

Other links

Fingerprint

Cite this