Photoacoustic shock generation in carbon suspensions

被引：15

作者：

Beveridge, AC ^{[1
]}

McGrath, TE

Diebold, GJ

Karabutov, AA

机构：

[1] Brown Univ, Dept Chem, Providence, RI 02912 USA

[2] Moscow State Univ, Ctr Int Laser, Moscow, Russia

来源：

APPLIED PHYSICS LETTERS | 1999年 / 75卷 / 26期

关键词：

D O I：

10.1063/1.125583

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

This letter discusses photoacoustic shock wave generation and the origin of nonlinear sound wave generation in carbon suspensions. The Burgers equation for an inviscid fluid is solved for an exponential acoustic wave. The solution shows an increasingly steep wave form that gradually coalesces into a shock front. Large dynamic range measurements of photoacoustic waves generated by a pulsed-laser beam in carbon suspensions show the pressure in the wave to depart significantly from the predictions of linear response theory. Acoustic sound speed and amplitude measurements indicate that weak shocks are produced from the photoacoustic sound generation process rather than from nonlinear propagational effects. (C) 1999 American Institute of Physics. [S0003-6951(99)02452-3].

引用

页码：4204 / 4206

页数：3

共 20 条

[1]

[Anonymous], LASER OPTOACOUSTICS

[2]

BUNKIN FV, 1991, LASERS ACOUSTICS

[3] CHEMICAL GENERATION OF ACOUSTIC-WAVES - A GIANT PHOTOACOUSTIC EFFECT [J].