Combined instrument for Raman and LIBS (Laser-induced breakdown) spectrometry, utilizing a single laser source and single spectrograph
Case ID: 00660
Executive Summary:
General Description:
Scientists at the Hawaii Institute of Geophysics & Planetology (HIGP) have developed a system which can perform both Raman spectroscopy and LIBS (Laser-induced breakdown spectroscopy) using a single laser source, a spectrograph equipped with a multichannel detector. Raman spectroscopy provides the molecular vibrational spectra and is widely used technique for positive identification of a molecule from their Raman fingerprints. LIBS produces atomic spectra of the ionized plasms on the material surface, and is used for identification of atoms present in the material. The combined system can do both Raman and LIBS spectroscopies simultaneously. The system operates at stand-off distances and provides a powerful remote sensing capability by recording both Raman and LIBS data.
Future Directions:
Can also be redesign to perform micro-Raman and micro LIBS analysis for laboratory use which have applications in trace/residue analysis and can analyze very small samples in nanogram amount.
Strengths:
Weaknesses:
Publication PMID: 16029853
Publications:
https://www.sciencedirect.com/science/article/pii/S1386142505000806
Inventor Bio: Anupam Misra
https://www.soest.hawaii.edu/soestwp/about/directory/anupam-misra
Executive Summary:
- Invention Type: Diagnostic and Device
- Patent Status: Pending
- Technology Summary Link:
- Research Institute: University of Hawaii, NASA Langley Research Center
- Disease Focus: Environmental Health
- How it works: A combined system simultaneously does both Raman spectroscopy and LIBS using a single laser source.
- Raman spectroscopy provides the molecular vibrational spectra and is widely used technique for positive identification of a molecule from their Raman fingerprints.
- LIBS produces atomic spectra of the ionized plasms on the material surface, and is used for identification of atoms present in the material.
- Lead Challenge Inventor: Anupam Misra
- Inventors: Anupam Misra, Shiv Sharma, Paul Lucey
- Novelty:
- Single laser source can do both Raman and LIBS spectroscopies simultaneously
- System operates at stand-off distances and provides a powerful remote sensing capability by recording both Raman and LIBS data.
- Clinical Applications:
- Environmental and public health
- Remote identification of chemicals, explosives, gases, and other materials of interest
- Environmental and public health
General Description:
Scientists at the Hawaii Institute of Geophysics & Planetology (HIGP) have developed a system which can perform both Raman spectroscopy and LIBS (Laser-induced breakdown spectroscopy) using a single laser source, a spectrograph equipped with a multichannel detector. Raman spectroscopy provides the molecular vibrational spectra and is widely used technique for positive identification of a molecule from their Raman fingerprints. LIBS produces atomic spectra of the ionized plasms on the material surface, and is used for identification of atoms present in the material. The combined system can do both Raman and LIBS spectroscopies simultaneously. The system operates at stand-off distances and provides a powerful remote sensing capability by recording both Raman and LIBS data.
Future Directions:
Can also be redesign to perform micro-Raman and micro LIBS analysis for laboratory use which have applications in trace/residue analysis and can analyze very small samples in nanogram amount.
Strengths:
- Provides both atomic emission spectra and Raman spectra (vibrational modes) to produce a complete spectroscopy identification of material of interest
- Single laser source requires less power
Weaknesses:
- Requires broader verification of efficacy
Publication PMID: 16029853
Publications:
https://www.sciencedirect.com/science/article/pii/S1386142505000806
Inventor Bio: Anupam Misra
https://www.soest.hawaii.edu/soestwp/about/directory/anupam-misra
