• Technical Conference: 

    15 – 20 May 2022

  • Exhibition: 

    17 – 19 May 2022

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Advanced Spectroscopy for Material Characterization

Presider: Markus Mangold, IRsweep

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8:00 - 8:15

(Withdrawn) The Laser-Induced Ignition Spark as a Combustion Chamber Probe in Rocket Propulsion (AM2M.1)
Presenter: Robert Stützer, German Aerospace Center

The laser-induced ignition spark in a research rocket combustor has been optically analysed in order to determine critical parameters such as the ratio of oxydizer and fuel (ROF), plasma temperature and ignition timing.

Authors:Robert Stützer, German Aerospace Center / Michael Oschwald, German Aerospace Center

8:15 - 8:30

Investigation of the Impact of CaCO3 Concentrations on the Fluorescence Lifetime of Polypropylene (AM2M.2)
Presenter: Maximilian Wohlschläger, Technical University Rosenheim

The impact of fillers on the fluorescence lifetime of polymers is still unknown. Investigating polypropylene containing different CaCO3 concentrations using FD-FLIM show an exponential increase in fluorescence lifetime proportional to the CaCO3 density in polypropylene.

Authors:Maximilian Wohlschläger, Technical University Rosenheim / Martin Versen, Technical University Rosenheim / Christian Laforsch, University Bayreuth


8:30 - 8:45

Isotopologue Trace Gas Detection Using Multipass Cavity Raman Scattering (AM2M.3)
Presenter: Jaspreet Singh, University of South Florida

Feedback-assisted multipass-cavity spontaneous Raman scattering is demonstrated as an effective method of isotopologue analysis. Deuterium concentration precision near one part-per-million in water was obtained by direct vapor and indirect dihydrogen measurements.

Authors:Jaspreet Singh, University of South Florida / Andreas Muller, University of South Florida


8:45 - 9:00

(Withdrawn) Optical Fiber-Based Laser-Induced Breakdown Spectroscopy Technique for Pulverized Coal Analysis (AM2M.4)
Presenter: Hemalaxmi ., Indian Institute of Technology Madras

A hollow-core fiber-based laser-induced breakdown spectroscopy technique is proposed and demonstrated for analysis of powder coal without any sample preparation. Argon flow assisted micro-ambiance with vacuum suction improved the LIBS emission intensity from powder coal.

Authors:Hemalaxmi ., Indian Institute of Technology Madras / Nilesh J Vasa, Indian Institute of Technology Madras / Satyanarayanan S, Indian Institute of Technology Madras

9:00 - 9:15

445 nm Laser-Induced Fluorescence Monitoring of 5-Hydroxymethylfurfural in Honey (AM2M.5)
Presenter: Andrew Huzortey, University of Cape Coast

Rapid monitoring of 5-Hydroxymethylfurfural (HMF) in honey remains a challenge. This work has demonstrated using 445 nm Laser-Induced Fluorescence spectroscopy technique to monitor honey’s HMF, detecting up to ~40 mg/kg HMF with good accuracy.

Authors:Andrew Huzortey, University of Cape Coast / Benjamin Anderson, University of Cape Coast / Jonathan Ntow, University of Cape Coast / Samuel Sackey, University of Cape Coast / Rofela Combey, University of Cape Coast / Joseph Adu, Kwame Nkrumah University of Science and Technology / Charles Amuah, University of Cape Coast / Peter Kwapong, University of Cape Coast / Alfred Owusu, University of Cape Coast


9:15 - 9:45

High Speed Differentiation of ore Mining Samples With a
Novel, low Cost, Portable Multispectral Image Sensor (AM2M.6)

Presenter: Peter Stark, Harvard University

We demonstrate a novel multispectral filter comprising arrayed silicon nanowires in the optical near field of a commercial CMOS image sensor. The resultant camera is used for quick and high precision distinction of ore mining samples.

Authors:Peter Stark, Harvard University / Amit Solanki, Harvard University / Victor Murray, Harvard University / Augusto Barton, Hochschild Mining / Fawwaz Habbal, Harvard University


9:45 - 10:00

Spatial Heterodyne Offset Raman Spectroscopy for Materials’ Interfaces With High Sensitivity (AM2M.7)
Presenter: Han Cui, Beijing Institute of Technology

Spatial Heterodyne Offset Raman Spectroscopy (SHORS) integrating Spatially Offset Raman Spectroscopy (SORS) with a fiber-coupled spatial heterodyne spectrometer (SHS) to enable a high sensitivity, ‘on-the-fly’ and movement-free deeper detection method for biomaterial models

Authors:Han Cui, Beijing Institute of Technology / Cameron Paterson, University of Glasgow / Andrew Glidle, University of Glasgow / Jonathan Cooper, University of Glasgow