Fossil Plant Remains Diagnostics by Laser-Induced Fluorescence and Raman Spectroscopies

Diode Laser Induced Fluorescence for Gas-Phase Diagnostics

By Iain S. Burns1,∗ and Clemens F. Kaminski, 1 Department of Chemical and Process Engineering, University of Strathclyde, Montrose Street, Glasgow, G1 1XJ, Scotland, UK 2 Department of Chemical Engineering and Biotechnology, University of Cambridge, Pembroke Street, Cambridge, CB2 3RA, England, UK 3 SAOT School of Advanced Optical Technologies, Friedrich Alexander University, 91058 Erlangen, Ge...

Erosion Rate Diagnostics in Ion Thrusters Using Laser-induced Fluorescence*

fio = atomic transition oscillator strength g = linewidth distribution function, sec We have demonstrated the use of laser-induced flug = energy-averaged Gaunt factor orescence (LIF) to monitor the charge-exchange ion 9i = degeneracy for atomic level i erosion of the molybdenum accelerator electrode in h = Planck's constant, J sec ion thrusters. This real-time, nonintrusive method h = Planck's ...

Interplanetary Dust Particles: Organic Matter Studied by Raman Spectroscopy and Laser Induced Fluorescence

Introduction: We are developping a micromanipulation line and a spectroscopic method for providing chemical imagery data on Organic Matter (OM) trapped in micrometric grains (Interplanetary Dust Particles, matrix grains extracted from pristine chondrites, STARDUST samples, etc.) The general framwork of our approach is based on the complementarity of Multi Wavelength Raman spectroscopy (includin...

A Method to Avoid Spatial Laser-Wing Effects in Laser- Based Spectroscopies for Combustion Diagnostics

Ultraviolet and visible spectroscopies for tissue diagnostics: fluorescence spectroscopy and elastic-scattering spectroscopy.

We review the application of fluorescence spectroscopy and elastic-scattering spectroscopy, over the ultraviolet-to-visible wavelength range, to minimally invasive medical diagnostics. The promises and hopes, as well as the difficulties, of these developing techniques are discussed.