PyTrA: ultra-fast transient absorption data analysis software. (21st April 2014)

• Record Type: Journal Article
• Authors: Martin, Jacob; Wang, Xindi; Simpson, Cather; Siekmann, Ivo
• Is Part Of: International journal of nanotechnology. Volume 11:Number 5/6/7/8(2014)
• Page Start: 601
• Page End: 609
• Publication Date: 2014-04-21
• Subjects: ultra-fast laser spectroscopy -- transient absorption -- femtosecond time-resolved spectroscopy -- photochemistry -- Bayesian data analysis -- hard modelling -- soft modelling -- python.; 620.505
• Languages: English
• ISSNs: 1475-7435

Abstract

Ultra-fast transient absorption spectra are inherently complex datasets to process. PyTrA is a new software system that has been written to bring together many of the most well-known techniques of analysis into one easy-to-use package. Figures of publishable quality can be generated, and advanced 3D graphs can be used to view the transient data in new ways. PyTrA is the first ultrafast transient analysis package that has Bayesian probabilistic fitting, implemented through the use of Markov chain Monte Carlo method in which the parameters can be randomly probed. This approach reduces the problems associated with over-describing the system.