Analysis of defects in externally driven dust-density wavefronts in cogenerated dusty plasma using the time-resolved Hilbert–Huang transform. (15th April 2016)

• Record Type: Journal Article
• Authors: Sarkar, Sanjib; Barman, Chiranjib; Mondal, Malay; Bose, M; Mukherjee, S
• Is Part Of: Journal of physics. Volume 49:Number 20(2016)
• Publication Date: 2016-04-15
• Subjects: dusty plasma -- Hilbert–Huang transform -- space-time plot -- complex plasma; Physics -- Periodicals; 530
• DOI: 10.1088/0022-3727/49/20/205201
• Languages: English
• ISSNs: 0022-3727

Abstract

Abstract: Analysis of defects in externally driven dust-density wavefronts (DDWs) in cogenerated dusty plasma has been carried out. The DDWs are excited for threshold positive bias through another T-shaped electrode which is placed inbetween two main discharge electrodes. Spatiotemporal evolution of the DDWs reveals a wave defect and non-propagating wave mode in the DDW field. A space-time plot and the time-resolved Hilbert–Huang transform (HHT) were employed to analyze the spatiotemporal wave data at a specific location in the wave field.