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arXiv · 1604.05528

Experimental Study of Dust Acoustic Waves in the Strongly Correlated Regime

P. Bandyopadhyay·G. Prasad·A. Sen
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Abstract

Low frequency dust acoustic waves (DAW) were excited in a laboratory argon dusty plasma by modulating the discharge voltage with a low frequency AC signal. Metallic graphite particles were used as dust grains and a digital FFT technique was used to obtain dispersion characteristics. The experimental dispersion relation shows the reduction of phase velocity and a regime where $\partial ω/\partial k < 0$. A comparison is made with existing theoretical model.

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P. Bandyopadhyay, G. Prasad, A. Sen. 2016-04-19. Experimental Study of Dust Acoustic Waves in the Strongly Correlated Regime. https://doi.org/10.1063/1.2134584

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