Theory of light emission in sonoluminescence as thermal radiation

Journal Article · Mon May 15 00:00:00 EDT 2006 · Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics

DOI:https://doi.org/10.1103/PHYSREVE.73.056302· OSTI ID:21069772

Tse, W -K; Leung, P T ^[1]

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1. Physics Department and Institute of Theoretical Physics, Chinese University of Hong Kong, Shatin, Hong Kong (China)

Based on the model proposed by Hilgenfeldt et al. [Nature (London) 398, 401 (1999)], we present here a comprehensive theory of thermal radiation in single-bubble sonoluminescence (SBSL). We first invoke the generalized Kirchhoff's law to obtain the thermal emissivity from the absorption cross section of a multilayered sphere (MLS). A sonoluminescing bubble, whose internal structure is determined from hydrodynamic simulations, is then modeled as a MLS and in turn the thermal radiation is evaluated. Numerical results obtained from simulations for argon bubbles show that our theory successfully captures the major features observed in SBSL experiments.

• OSTI ID: 21069772
• Journal Information: Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics, Vol. 73, Issue 5; Other Information: DOI: 10.1103/PhysRevE.73.056302; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-651X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ABSORPTION
ARGON
BUBBLES
COMPUTERIZED SIMULATION
EMISSIVITY
LUMINESCENCE
SOUND WAVES
SPHERES
THERMAL RADIATION