Compact Fourier Transform Spectrometer Laser Induced Breakdown Spectroscopy (LIBS)
The aim of my project is to create a compact stationary Fourier transform spectrometer for application in different spectral analysis systems including Laser Induced Breakdown Spectroscopy (LIBS). The design is based on Andrew Harvey and Miles Padgetts’ Wollaston prism Fourier transform spectrometer.
A Wollaston prism introduces the phase shift required to generate the interferogram, in place of the moving mirror employed in the more usual Michelson interferometer. Fourier transform spectroscopy (FTS) is widely used as the method of choice for the measurement of electromagnetic spectra.
The reason is that FTS makes use of both the Jacquinot and Fellget advantages, which ultimately gives rise to higher throughput and signal to noise ratio than conventional grating spectrometers. It is these advantages along with the potential to capture an entire spectrum with a single shot that make a Wollaston prism Fourier transform spectrometer ideal for spectral analysis applications such as LIBS.
Stephen received his Bachelor of Science in Applied Physics from Dublin City University in November 2013. Since then, Stephen has started his PhD in laser plasma physics and spectroscopy in the National Centre for Plasma Science and Technology (NCPST) within Dublin City University (DCU), as part of a Science Foundation Ireland funded project.
Stephen has also been added to the EXTATIC program to take part as a Non-Erasmus Mundus student. His research areas of interest include optics and optical design, spectroscopy, laser produced plasmas and Laser Induced Breakdown Spectroscopy (LIBS).