Sonoluminescence initiated by laser irradiation of carbon suspensions

Autor:	Gerald J. Diebold, Andrew C. Beveridge, Thomas E. McGrath
Rok vydání:	1998
Předmět:	Physics and Astronomy (miscellaneous) Chemistry Bubble chemistry.chemical_element Laser Suspension (chemistry) law.invention Physics::Fluid Dynamics Sonoluminescence law Laser power scaling Irradiation Atomic physics Absorption (electromagnetic radiation) Carbon
Zdroj:	Applied Physics Letters. 73:1029-1031
ISSN:	1077-3118 0003-6951
Popis:	We report observation of sonoluminescence following irradiation of suspensions of carbon in water with a high power, pulsed laser. The mechanism for generation of a gas bubble is chemical in origin: the heating of the carbon particles by absorption of laser radiation causes the production of high pressure H2 and CO through reaction of carbon with the water surrounding the particles. Expansion of the bubble past its equilibrium diameter results in oscillation of the bubble diameter which, several hundred μs after the initial formation of the bubble, results in emission of optical and acoustic radiation. The effects of laser power, the concentration of carbon in the suspension, dissolved Ar, and temperature on the sonoluminescent intensity are reported.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::21c13e791f57884d669642f096f67f33 https://doi.org/10.1063/1.122074 Zobrazit plný text záznamu