Technical Papers
On this page you will find a number of refereed journal articles, application notes, and white papers relating to both
quantum cascade lasers (
QCL), and
External Cavity quantum cascade Laser (
ECqcL™) technologies and applications. Over the past few years, QCLs have evolved from scientific curiosities to enablers of commercial instruments, providing sensing, detection, and molecular spectroscopy. Here you'll find discussions ranging from the basic physics of QCL core technology to system level applications. Topics include stand-off explosive detection, distributed sensor networks, trace gas analysis, ring resonators and waveguides, as well as in vitro glucose detection, and
mid-IR imaging. Feel free to review and download information of interest from this growing pool of resources.
If you would like to share your work in mid-IR quantum cascade lasers with others, please send a pdf of your paper or provide a link to
info@daylightsolutions.com. We would be pleased to add it to our site for the benefit of all.
Published Papers
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23 March, 2013, Breath Analysis with Broadly Tunable Quantum Cascade Lasers [PDF, 1MB] |
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21 March, 2013, Quantum cascade laser open-path system for remote sensing of trace gases in Beijing, China [PDF, 1.8MB] |
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20 March 2013, Multi-modal characterization of nanogram amounts of a photosensitive
polymer [PDF, 718KB] |
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27 June 2012, Chemical Imaging using Infrared Photo-thermal Microspectroscopy
Stand-Off Detection of Trace Explosives Via Resonant Infrared Photothermal Imaging
Performance characteristics of a continuous wave compact widely tunable external cavity interband cascade laser [PDF, 706KB] |
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June 26, 2012, Frequency characterization of an External-Cavity Quantum Cascade Laser at 4.5 µm using a Frequency Comb [PDF, 1.3MB] |
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11 May 2012, Nonpolar nitrous oxide dimer: Observation of the combination bands of (14N2O)2 and (15N2O)2 involving the torsion and antigeared bending modes [PDF, 965KB] |
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9 March 2012, Morphed intermolecular potential of OC:HCCH complex based on infrared quantum cascade laser spectroscopy [PDF, 449KB]
9 March 2012, CMM-RS Potential for Characterization of the Properties of the Halogen-Bonded OC-Cl2 Complex, and a Comparison with Hydrogen-Bonded OC-HCl [PDF, 1.7MB] |
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9 March 2012, Pump–probe photothermal spectroscopy using quantum cascade lasers [PDF, 800KB] |
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23 February 2012, Wavelength-modulation-spectroscopy for real-time, in situ NO detection in combustion gases with a 5.2 μm quantum-cascade laser [PDF, 1.46MB] |
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23 February 2012, Applications of QCLs in studies of chemical dynamics[PDF, 1MB]
Direct and wavelength modulation spectroscopy using a cw external cavity quantum cascade laser (APPLIED PHYSICS LETTERS, 2009) [PDF, 290KB]
Rapid passage effects in nitrous oxide induced by a chirped external cavity quantum cascade laser (APPLIED PHYSICS LETTERS, 2009) [PDF, 355KB] |
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6 February 2012, ν4 band of CH4 in helium nanodroplets: A probe of the dynamical response of a superfluid |
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6 February 2012, Attenuated total reflection mid-IR-spectroscopy for electrochemical applications using a QCL |
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10 October, 2011. Infrared absorption nano-spectroscopy using sample photoexpansion induced by tunable quantum cascade lasers, F. Lu and M.A. Belkin |
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10 October, 2011; Infrared nanoscopy of Dirac plasmons at the graphene-SiO2 interface |
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Sept 2011, Lasers à cascade quantique dans les applications militaires modernes |
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12 August, 2011, New photoacoustic cell design for studying aqueous solutions and gels |
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12 July, 2011, Infrared Nanoscopy of Dirac Plasmons at the Graphene-SiO2 Interface, Z. Fei, D.N. Basov, et al. |
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Mid-infrared photonic crystal cavities in silicon |
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Quantum Cascade Laser Spectroscopy and Photoinduced Chemistry of Al-(CO)n Clusters in Helium Nanodroplets |
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Quantum cascade lasers in chemical physics [PDF, 2MB] |
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Detection of benzene and toluene gases using a mid-infrared continuous-wave external cavity quantum cascade laser at atmospheric pressure [PDF, 476KB]
Real-time monitoring of benzene, toluene, and p-xylene in a photoreaction chamber with a tunable mid-infrared laser and ultraviolet differential optical absorption spectroscopy [PDF, 728KB] |
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Silicon waveguides and ring resonators at 5.5 µm [PDF, 442KB] |
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Utilizing broad gain bandwidth in quantum cascade devices [PDF, 703KB] |
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Quantum Cascade Laser-Based Photoacoustic Spectroscopy for Trace Vapor Detection and Molecular Discrimination [PDF, 285KB] |
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Tunable external cavity quantum cascade laser for the simultaneous determination of glucose and lactate in aqueous phase [PDF, 263KB]
Tunable Mid-Infrared Lasers in Physical Chemosensors towards the Detection of Physiologically Relevant Parameters in Biofluids |
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QEPAS detector for rapid spectral measurements [PDF, 1MB] |
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NO trace gas sensor based on quartz-enhanced photoacoustic spectroscopy and external cavity quantum cascade laser [PDF, 500KB]
A mid-infrared QEPAS sensor device for TATP detection (JOURNAL OF PHYSICS, 2009) [PDF 700KB] |
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Jet-cooled infrared spectra of molecules and complexes with a cw mode-hop-free external-cavity QCL and a distributed-feedback QCL [PDF, 1.4MB] |
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Stand-Off Detection of Trace Explosives Via Resonant Infrared Photothermal Imaging
Performance characteristics of a continuous wave compact widely tunable external cavity interband cascade laser [PDF, 706KB] |
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Application of External-Cavity Quantum Cascade Infrared Lasers to Nanosecond Time-Resolved Infrared Spectroscopy of Condensed-Phase Samples Following Pulse Radiolysis [PDF, 376KB] |
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30 September 2011: Achieving Secondary Structural Resolution in Kinetic Measurements of Protein Folding: A Case Study of the Folding Mechanism of Trp-cage
Infrared Signature and Folding Dynamics of a Helical β-Peptide [PDF, 694KB] |
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Extremely sensitive detection of NO2 employing off-axis integrated cavity output spectroscopy coupled with multiple-line integrated absorption spectroscopy: 28 ppt of N2O
Enhancement of trace gas detection by integrating wavelength modulated spectra across multiple lines [PDF, 525KB]
Enhanced sensitivity for the detection of trace gases using multiple line integrated absorption spectroscopy (APPLIED OPTICS, 2009)
Absorption and wavelength modulation spectroscopy of NO2 using a tunable, external cavity continuous wave quantum cascade laser (APPLIED OPTICS, 2009) |
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Development of a MEMS-Scale Photoacoustic Chemical Sensor Using a Quantum Cascade Laser [PDF, 240KB] |
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Application of External-Cavity Quantum Cascade Infrared Lasers to Nanosecond Time-Resolved Infrared Spectroscopy of Condensed-Phase Samples Following Pulse Radiolysis |
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Standoff photoacoustic spectroscopy (APPLIED PHYSICS LETTERS, 2008) [PDF, 455KB]
Standoff Spectroscopy of Surface Absorbed Chemicals (ANALYTICAL CHEMISTRY, 2009) [PDF, 860KB] |
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Mid-infrared photoacoustic spectroscopy of solids using an external-cavity quantum-cascade laser (OPTICS LETTERS, 2008) [PDF, 310KB] |
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White Papers
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Complete spectral coverage using a mode hopping laser |
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Distributed nerve gases sensor based on IR absorption in hollow optical fiber [PDF, 4.46MB] |
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August 8, 2011 - Precision and Accuracy of Daylight Solutions Mode Hop-Free Lasers [PDF, 600KB]
Detecting CO2 isotopologues in the 4.4 µm region [PDF, 150KB]
Recent Results from Broadly Tunable External Cavity Quantum Cascade Lasers [PDF, 1.59MB]
Quantum cascade laser based replacement for FTIR microscopy [PDF, 2.07MB]
Wavelength Tuning Characteristics of CW-Pulsed Laser [PDF, 181KB]
A Brief Comparison of 2f and Broadly Swept Detection Techniques (DAYLIGHT SOLUTIONS, 2007) [PDF, 835KB]
Swept Sensor™ - A Novel Portable Battery-operated Gas Sensing Solution(DAYLIGHT SOLUTIONS, 2009) [PDF, 595KB]
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