Journal
APPLIED SCIENCES-BASEL
Volume 12, Issue 15, Pages -Publisher
MDPI
DOI: 10.3390/app12157598
Keywords
laser spectroscopy; infrared spectroscopy; routine mid-infrared sensors; optical sensors; chem; bio sensors; quantum cascade laser; QCL; interband cascade laser; ICL; mid-infrared light emitting diode; MIR-LED; handheld spectrometers; routine diagnostics; environmental analysis; industrial analysis; Medical; handheld; routine diagnostics
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Funding
- European Union [780598, 824986]
- BMBF project GRADIA [03XP0206A]
- DFG [SFB/TRR 234, GRK 2203]
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With its exquisite capability of direct, non-destructive label-free sensing of molecular transitions, IR spectroscopy has become a versatile analytical tool widely used in various fields such as industrial manufacturing, surveillance, environmental monitoring, and biomedical sample evaluation. Recent developments have made IR spectroscopic devices reliable tools for quality control, rapid analysis, and patient health monitoring. Guided light within dedicated optical structures allows for remote sensing and high-throughput sensing scenarios. This article discusses future directions and highlights the historic development, current trends, and emerging technological opportunities in IR spectroscopy.
Given the exquisite capability of direct, non-destructive label-free sensing of molecular transitions, IR spectroscopy has become a ubiquitous and versatile analytical tool. IR application scenarios range from industrial manufacturing processes, surveillance tasks and environmental monitoring to elaborate evaluation of (bio)medical samples. Given recent developments in associated fields, IR spectroscopic devices increasingly evolve into reliable and robust tools for quality control purposes, for rapid analysis within at-line, in-line or on-line processes, and even for bed-side monitoring of patient health indicators. With the opportunity to guide light at or within dedicated optical structures, remote sensing as well as high-throughput sensing scenarios are being addressed by appropriate IR methodologies. In the present focused article, selected perspectives on future directions for IR spectroscopic tools and their applications are discussed. These visions are accompanied by a short introduction to the historic development, current trends, and emerging technological opportunities guiding the future path IR spectroscopy may take. Highlighted state-of-the art implementations along with novel concepts enhancing the performance of IR sensors are presented together with cutting-edge developments in related fields that drive IR spectroscopy forward in its role as a versatile analytical technology with a bright past and an even brighter future.
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