Rajesh Nayak
Articles written in Pramana – Journal of Physics
Volume 75 Issue 6 December 2010 pp 1145-1150 Conributed Papers
V K Unnikrishnan Kamlesh Alti Rajesh Nayak Rodney Bernard V B Kartha C Santhosh G P Gupta B M Suri
It is a well-known fact that laser-induced breakdown spectroscopy (LIBS) has emerged as one of the best analytical techniques for multi-elemental compositional analysis of samples. We report assembling and optimization of LIBS set up using high resolution and broad-range echelle spectrograph coupled to an intensified charge coupled device (ICCD) to detect and quantify trace elements in environmental and clinical samples. Effects of variations of experimental parameters on spectroscopy signals of copper and brass are reported. Preliminary results of some plasma diagnostic calculations using recorded time-resolved optical emission signals are also reported for brass samples.
Volume 82 Issue 2 February 2014 pp 397-401 Contributed Papers
Biomedical and environmental applications of laser-induced breakdown spectroscopy
V K Unnikrishnan K S Choudhari Suresh D Kulkarni Rajesh Nayak V B Kartha C Santhosh B M Suri
Laser-induced breakdown spectroscopy (LIBS) is an emerging analytical technique with numerous advantages such as rapidity, multi-elemental analysis, minimal sample preparation, minimal destruction, low cost and versatility of being applied to a wide range of materials. In this paper, we report the preliminary observations we obtained using LIBS for clinical and environmental samples. Elemental analysis has been done qualitatively in human teeth samples which show encouraging results. It has also been demonstrated in this paper that LIBS can be very well utilized in field applications such as plastic waste sorting and recycling.
Volume 96, 2022
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