2006
DOI: 10.1007/1-84628-209-8_18
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Infrared Methods for Gas Detection

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Cited by 38 publications
(27 citation statements)
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“…Such circuits can be valuable for spectroscopic sensing applications, which leverage the strong rovibrational absorption lines of molecules in the mid-infrared wavelength spectrum -the so-called molecular fingerprint region [2]. While silicon provides an excellent platform for passive waveguiding in this 1.1 -4 µm wavelength range [1,3], the generation and detection of mid-infrared radiation is not straightforward.…”
Section: Ocis Codes: (1303120) Integrated Optics Devices; (1900190)mentioning
confidence: 99%
“…Such circuits can be valuable for spectroscopic sensing applications, which leverage the strong rovibrational absorption lines of molecules in the mid-infrared wavelength spectrum -the so-called molecular fingerprint region [2]. While silicon provides an excellent platform for passive waveguiding in this 1.1 -4 µm wavelength range [1,3], the generation and detection of mid-infrared radiation is not straightforward.…”
Section: Ocis Codes: (1303120) Integrated Optics Devices; (1900190)mentioning
confidence: 99%
“…Many gases and bio-molecules absorb strongly in the mid-infrared (2-12 μm) wavelength range. Organic compounds have characteristic absorption features in the 3 -4 μm wavelength range [2], and the detection and analysis of these compounds is of great importance for many practical applications. Both laser-based spectroscopy and dispersive spectrometers can be used for this purpose.…”
Section: Introductionmentioning
confidence: 99%
“…An important factor defining the scope of potential applications for these ASPICs is the range of accessible wavelengths. The ASPICs operating in the mid-infrared wavelengths range beyond 2 μm are particularly interesting for the applications in gas spectroscopy [2]. This is related to the presence of absorption profiles of several gas species, for example, acetone, ammonia, carbon dioxide, water vapor, formaldehyde, diethylamine, ethylamine, and methylamine [3].…”
Section: Introductionmentioning
confidence: 99%
“…A trace analysis of such gas species is important in a wide range of applications including environmental monitoring in agriculture, process control in chemical and pharmaceutical plants and laboratories, atmospheric pollution monitoring, and for medical monitoring and diagnosis. Furthermore, the use of a monolithic photonic integration technology allows for the co-integration of several sources and detection subsystems on a single chip making it particularly attractive for multispecies gas detection systems where the complexity and size of bulk optics-based solutions are in many cases prohibitive factors [2,4].…”
Section: Introductionmentioning
confidence: 99%