| CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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Fast Modification of Microdischarge Emission Bands by Fracture of Sugar |
| Sergej Aman1**, Juergen Tomas1, A. Streletskii2
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1Otto-von-Guericke University, Magdeburg, P.O. Box 4120, 39106 Magdeburg, Germany
2Institute of Chemical Physics, RAS, Kosygina 4, Moscow 119991, Russia
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| Cite this article: |
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Sergej Aman, Juergen Tomas, A. Streletskii 2011 Chin. Phys. Lett. 28 087802 |
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Abstract Intensive light pulses with widths of about 10 ns were observed during the crack propagation by cleavage of crystalline sugar at atmospheric pressure. The observed light pulses were caused by a sequence of gas microdischarges (MDs). The pulses were detected in the UV/VIS and NIR wavelength ranges. First the light pulses appear in the UV/VIS wavelength range, and then after a delay of about 0.4–1.2 ns in the NIR wavelength range. This characteristic feature of MDs can be used for the characterization of crack propagation.
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| Keywords:
78.60.Mq
46.80.+j
52.80.Mg
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Received: 31 December 2010
Published: 28 July 2011
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| PACS: |
78.60.Mq
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(Sonoluminescence, triboluminescence)
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46.80.+j
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(Measurement methods and techniques in continuum mechanics of solids)
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52.80.Mg
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(Arcs; sparks; lightning; atmospheric electricity)
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