Автор |
Nosenko, V. |
Автор |
Zhdanov, S. K. |
Автор |
Kim, S.-H. |
Автор |
Heinrich, J. |
Автор |
Merlino, R. L. |
Автор |
Morfill, G. E. |
Дата выпуска |
2009-12-01 |
dc.description |
The spectrum of spontaneously excited dust acoustic waves was measured. The waves were observed with high temporal resolution using a fast video camera operating at 1000 frames per second. The experimental system was a suspension of micron-size kaolin particles in the anode region of a dc discharge in argon. Wave activity was found at frequencies as high as 450 Hz. At high wave numbers, the wave dispersion relation was acoustic-like (frequency proportional to wave number). At low wave numbers, the wave frequency did not tend to zero, but reached a cutoff frequency instead. The cutoff value declined with distance from the anode. We ascribe the observed cutoff to the particle confinement in this region. |
Формат |
application.pdf |
Издатель |
Institute of Physics Publishing |
Копирайт |
Europhysics Letters Association |
Название |
Measurements of the power spectrum and dispersion relation of self-excited dust acoustic waves |
Тип |
lett |
DOI |
10.1209/0295-5075/88/65001 |
Electronic ISSN |
1286-4854 |
Print ISSN |
0295-5075 |
Журнал |
EPL (Europhysics Letters) |
Том |
88 |
Первая страница |
65001 |
Последняя страница |
65006 |
Аффилиация |
Nosenko, V.; Max-Planck-Institut für extraterrestrische Physik - D-85741 Garching, Germany, EU |
Аффилиация |
Zhdanov, S. K.; Max-Planck-Institut für extraterrestrische Physik - D-85741 Garching, Germany, EU |
Аффилиация |
Kim, S.-H.; Department of Physics and Astronomy, The University of Iowa - Iowa City, IA 52242, USA |
Аффилиация |
Heinrich, J.; Department of Physics and Astronomy, The University of Iowa - Iowa City, IA 52242, USA |
Аффилиация |
Merlino, R. L.; Department of Physics and Astronomy, The University of Iowa - Iowa City, IA 52242, USA |
Аффилиация |
Morfill, G. E.; Max-Planck-Institut für extraterrestrische Physik - D-85741 Garching, Germany, EU |
Выпуск |
6 |