Background

Remote Raman and LIBS are capable of providing fast, accurate chemical detection in a variety of applications, e.g., environmental monitoring and studies, detecting hazardous chemical spill and residues. Often, these use cases involve distant and even hazardous targets and standoff detection is highly desirable. In general, the overall size of the remote Raman and LIBS systems must increase in order to achieve longer detection range.

Technology Overview

Researchers at the University of Hawaii have invented a remote Raman and LIBS spectroscopy system that is small, uses low laser power and has a detection range of several hundred meters. They achieve this through the use of a novel, two‑component system comprising the spectroscopy compact remote Raman and LIBS system and a distant focusing lens. The lens focuses the laser beam from the spectroscopy system onto the target of interest and sends back Raman and LIBS signals for analysis.

Benefits

Chemical detection from a safe distance
Lens component can be placed by a person, remote controlled car or unmanned aerial vehicle (UAV)
Field worker not required to approach target site when remote car or UAV is used to carry the lens
Chemical samples can be analyzed quickly by moving the lens component without requiring the Raman LIBS system to be moved

Applications

NASA and planetary exploration programs
Environmental monitoring
- Exhaust
- Oil spills
Detecting biologics and hazardous chemicals

Long Range Remote Raman and LIBS Spectroscopy

IP Status

Seeking