Abstract
In this paper, we report the development of a java application for Superposition T-matrix code, JaSTA (Java Superposition T-matrix App), to study the light scattering properties of aggregate structures. It has been developed using Netbeans 7.1.2, which is a java integrated development environment (IDE). The JaSTA uses double precession superposition codes for multi-sphere clusters in random orientation developed by Mackowski & Mischenko (1996). It consists of a Graphical User Interface (GUI) in the front hand and a database of related data’s in the back hand. Both the interactive GUI and database package directly enables user to model by self-monitoring respective input parameters (namely, wavelength, complex refractive indices, grain size, etc.) to study the related optical properties of cosmic dust (namely, extinction, polarization, etc.) instantly, i.e., with zero computational time. This increases the efficiency of the user. The database of JaSTA is now created for a few sets of input parameters with a plan to create a large database in future. This application also has an option where users can compile and run the scattering code directly for aggregates in GUI environment. The JaSTA aims to provide convenient and quicker data analysis of the optical properties which can be used in different fields like planetary science, atmospheric science, nano science, etc. The current version of this software is developed for Linux and Windows platform to study the light scattering properties of small aggregates which will be extended for larger aggregates using parallel codes in future.
Authors : Prithish Halder, Arindwam Chakraborty, Parijat Deb Roy, Himadri Sekhar Das
Link to Published Paper : http://www.sciencedirect.com/science/article/pii/S0010465514001532
Link to download JaSTA : http://ausastro.in/jasta.html
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