Fiber optic coupled quantum cascade infrared laser system for detection of explosive materials on surfaces
| Autor: | David F. Arnone, Michael Pushkarsky, L. Brandon Shaw, Chris R. Howle, Linda Lee, Lynda E. Busse, Enrique Lopez, Kevin J. Major, Rafael R. Gattass, Rhea J. Clewes, Kenneth J. Ewing, Jasbinder S. Sanghera, Justin Kane |
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| Rok vydání: | 2019 |
| Předmět: |
Optical fiber
Materials science Explosive material Infrared business.industry 010401 analytical chemistry Far-infrared laser Infrared spectroscopy 01 natural sciences Atomic and Molecular Physics and Optics 0104 chemical sciences Electronic Optical and Magnetic Materials law.invention 010309 optics law 0103 physical sciences Explosive detection Optoelectronics Electrical and Electronic Engineering Fourier transform infrared spectroscopy Quantum cascade laser business |
| Zdroj: | Optics & Laser Technology. 119:105635 |
| ISSN: | 0030-3992 |
| DOI: | 10.1016/j.optlastec.2019.105635 |
| Popis: | The design and assembly of a unique infrared (IR) optical-fiber combined quantum cascade laser (QCL) system is described. This system integrates the output from four individual QCL modules, using infrared optical fibers, into a single output aperture to provide continuous spectral scanning from 6.02 to 11.17 µm. Spectra were collected on a diffuse gold reference as well as multiple concentrations of the explosive 1,3,5-Trinitro-1,3,5-triazinane (RDX) which were inkjet printed on aluminum substrates. The collected RDX spectra were compared to RDX spectra collected using a conventional Fourier-transform infrared spectrometer (FTIR). The results show good agreement between the spectra collected using the fiber-combined QCL system and the standard FTIR. These results demonstrate that the use of infrared optical fibers to combine multiple QCL modules is a viable approach to developing IR laser sources for use in fieldable devices capable of standoff detection of explosives. |
| Databáze: | OpenAIRE |
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