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

Journal Article · Mon Mar 28 00:00:00 EDT 2016 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.4944648· OSTI ID:22594523

Bai, Wenyu; Diebold, Gerald J. ^[1]

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1. Department of Chemistry, Brown University, Providence, Rhode Island 02912 (United States)

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. Here, 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.

• OSTI ID: 22594523
• Journal Information: Journal of Applied Physics, Vol. 119, Issue 12; Other Information: (c) 2016 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
AMPLITUDES
BEAMS
DELTA FUNCTION
GAUSS FUNCTION
ONE-DIMENSIONAL CALCULATIONS
PHOTOACOUSTIC EFFECT
PULSES
SOUND WAVES
SPACE
WAVE EQUATIONS