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Mid-Infrared Sensors Based On Semiconductor Lasers and Photonic Integrated Circuits (PICs)

A special issue of Sensors (ISSN 1424-8220). This special issue belongs to the section "Physical Sensors".

Deadline for manuscript submissions: closed (29 February 2020) | Viewed by 4430

Special Issue Editor


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Guest Editor
Electrical and Computer Engineering, University of California Santa Barbara, Santa Barbara, CA 93106, USA
Interests: silicon photonics; quantum cascade lasers; heterogeneous integration; photonic integrated circuits; electronic–photonic integration; photonic sensors; narrow linewidth lasers; high speed coherent communication PICs

Special Issue Information

Dear Colleagues,

Mid-infrared wavelength range is gaining attraction for sensing applications. Many interesting molecular species have orders of magnitude higher absorption cross-sections in mid-infrared as compared to shorter wavelengths. In addition, the distinct molecular fingerprint of individual molecules helps in segregating the different species. Several sensing applications such as trace gas monitoring, isotope segregation, leak detection, biomarker detection, liquid sensing, and remote sensing are enabled by mid-infrared sensors. In the past decade, several efforts have been made to miniaturize the sensing systems for hand-held applications. Two areas of research have particularly stood out—semiconductor lasers and photonic integrated circuits—and they help in reducing the form factor of sensing systems.

This Special Issue focuses on advancements made in both these areas. The main aim is to track the progress over the wide mid-infrared wavelength band (2–12 µm) in the performance of sensing solutions employing semiconductor lasers and PICs. Articles detailing integration of mid-infrared III-V devices with passive waveguides are also of interest in this Special Issue. Potential topics for this Special Issue include but are not limited to:

  • Sensing schemes using Type I and Type II laser diodes;
  • Sensing schemes using interband cascade lasers;
  • Sensing schemes using quantum cascade lasers;
  • Tunable laser diode spectroscopy in the mid-infrared;
  • Wavelength modulation spectroscopy in the mid-infrared;
  • Evanescent waveguide sensors;
  • Slot waveguide-based sensors;
  • Novel waveguide geometries for sensing applications;
  • Spectrometers based on PICs;
  • Mid-infrared photothermal sensors;
  • Mid-infrared photoacoustic sensors;
  • Mid-infrared plasmonic sensors;
  • Integration of mid-infrared light sources on passive waveguides.

Dr. Aditya Malik
Guest Editor

Manuscript Submission Information

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Keywords

  • Mid-infrared sensing
  • Quantum cascade lasers
  • Spectroscopic sensing
  • Photonic integrated circuits
  • Heterogeneous integration
  • Hybrid integration

Published Papers (1 paper)

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Research

13 pages, 3997 KiB  
Article
A Quantum Cascade Laser-Based Multi-Gas Sensor for Ambient Air Monitoring
by Andreas Genner, Pedro Martín-Mateos, Harald Moser and Bernhard Lendl
Sensors 2020, 20(7), 1850; https://doi.org/10.3390/s20071850 - 26 Mar 2020
Cited by 23 | Viewed by 4121
Abstract
A quantum cascade laser-based sensor for ambient air monitoring is presented and five gases, affecting the air quality, can be quantified. The light sources are selected to measure CO, NO, NO2, N2O and SO2. The footprint of [...] Read more.
A quantum cascade laser-based sensor for ambient air monitoring is presented and five gases, affecting the air quality, can be quantified. The light sources are selected to measure CO, NO, NO2, N2O and SO2. The footprint of the measurement setup is designed to fit in two standard 19” rack (48 cm × 65 cm) with 4 height units (18 cm) whereas one is holding the optical components and the other one contains the electronics and data processing unit. The concentrations of the individual analytes are measured using 2f-Wavelength Modulation Spectroscopy (2f-WMS) and a commercially available multipass gas cell defines the optical path. In addition, CO can also be measured with a dispersion-based technique, which allows one to cover a wider concentration range than 2f-WMS. The performance of this prototype has been evaluated in the lab and detection limits in the range of 1ppbv have been achieved. Finally, the applicability of this prototype for ambient air monitoring is shown in a five-week measurement campaign in cooperation with the Municipal Department for Environmental Protection (MA 22) of Vienna, Austria. Full article
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