A long-wave infra-red pulsed external-cavity QCL spectrometer using a hollow waveguide gas cell: Data
Date
2024-04-25 08:45
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Cranfield University
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Francis, Daniel; Hodgkinson, Jane; Tatam, Ralph (2024). A long-wave infra-red pulsed external-cavity QCL spectrometer using a hollow waveguide gas cell: Data. Cranfield Online Research Data (CORD). Dataset. https://doi.org/10.17862/cranfield.rd.25187777
Abstract
A spectrometer built using an external cavity pulsed quantum cascade laser is described. The spectrometer has a tuning range from 10 €“ 13 um (1,000 €“ 769 cm-1) and is designed to target volatile organic compounds (VOCs) which often exhibit water-free molecular absorption within the region. The spectrometer utilizes a hollow silica waveguide gas cell which has an internal volume of a few millilitres, a fast response time (~1 s), and is advantageous when only low sample volumes, similar to the cell volume, are available.
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Github
Keywords
spectroscopy', 'mid-infrared', 'hollow waveguide', 'gas cell', 'quantum cascade laser spectrometer'
DOI
10.17862/cranfield.rd.25187777
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CC BY 4.0
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Point of care diagnosis of gastrointestinal disease using laser spectroscopy