Femtosecond laser-written waveguides and couplers for integrated mid-infrared photonic devices
Date
2023
Authors
Fernandez, T.T.
Gross, S.
Withford, M.
Johnston, B.
Gretzinger, T.
Rehman, S.
Fuerbach, A.
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Conference item
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2023 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2023, 2023, pp.1-1
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2023 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (26 Jun 2023 - 30 Jun 2023 : Munich, Germany)
Abstract
Virtually every molecule can uniquely be identified by a series of characteristic mid-infrared (IR) absorption lines, thus commonly referred to as the molecule's spectral fingerprint. A-priori unknown substances can therefore be detected with exceptional high selectivity by measuring a sample's response to illumination with broadband mid-infrared light [1]. Consequently, potential applications of mid-IR spectroscopy are vast and are ranging from airport security screening and non-invasive breath analysis to medical imaging and the detection of chemical warfare agents and toxic industrial chemicals, to only name a few. However, the main roadblock for the widespread adoption of this powerful technique is the current lack of integrated miniaturised components that are needed to realise field-deployable mid-IR spectral fingerprinting systems.
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Copyright 2023 IEEE