Photoacoustic effect generated by moving optical sources: Motion in one dimension

Journal Article · Thu Mar 24 00:00:00 EDT 2016 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.4944648· OSTI ID:1469585

Bai, Wenyu  ^[1]; Diebold, Gerald J. ^[1]

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1. Brown Univ., Providence, RI (United States). Dept. of Chemistry

Although the photoacoustic effect is typically generated by pulsed or amplitude modulated optical beams, it is clear from examination of the wave equation for pressure that motion of an optical source in space will result in the production of sound as well. In this work, the properties of the photoacoustic effect generated by moving sources in one dimension are investigated. The cases of a moving Gaussian beam, an oscillating delta function source, and an accelerating Gaussian optical sources are reported. The salient feature of one-dimensional sources in the linear acoustic limit is that the amplitude of the beam increases in time without bound.

• Research Organization: Brown Univ., Providence, RI (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• Grant/Contract Number: SC0001082; SC000108
• OSTI ID: 1469585
• Alternate ID(s): OSTI ID: 1243146
• Journal Information: Journal of Applied Physics, Vol. 119, Issue 12; ISSN 0021-8979
• Publisher: American Institute of Physics (AIP)
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
photoacoustic effects
generalized functions
acoustic waves
partial differential equations
wave forms
linear acoustics
sound production technology
speed of sound
optical sources
geometrical optics