Interband cascade laser–based sensor for ambient CH&lt;sub&gt;4&lt;/sub&gt;

Sonnenfroh, David M.; Wainner, Richard T.; Allen, Mark G.; Varner, R. K.

doi:10.1117/1.3498769

Cited by 17 publications

(7 citation statements)

References 14 publications

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“…Both pulsed and CW versions available, and fabrication procedures have been developed to create DFB structures for mode-hop free singlemode operation. Because of the relative immaturity of ICLs compared to their QCL counterparts there have been fewer instrument developments based around them, however NEAs of 10 -4 -10 -5 are achievable [215] .…”

Section: Solid State Monolithic Devicesmentioning

confidence: 99%

Optical gas sensing: a review

Hodgkinson

Tatam

2012

Meas. Sci. Technol.

1,307

858

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The detection and measurement of gas concentrations using the characteristic optical absorption of the gas species is important for both understanding and monitoring a variety of phenomena from industrial processes to environmental change. This article reviews the field, covering several individual gas detection techniques including non-dispersive infrared (NDIR), spectrophotometry, tunable diode laser spectroscopy and photoacoustic spectroscopy. We present the basis for each technique, recent developments in methods and performance limitations. The technology available to support this field, in terms of key components such as light sources and gas cells, has advanced rapidly in recent years and we discuss these new developments. Finally, we present a performance comparison of different techniques, taking data reported over the preceding decade, and draw conclusions from this benchmarking.

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Section: Solid State Monolithic Devicesmentioning

confidence: 99%

Optical gas sensing: a review

Hodgkinson

Tatam

2012

Meas. Sci. Technol.

1,307

858

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“…DFB-ICLs provide single mode, narrow linewidth (~0.7 MHz) [62], low power consumption (hundreds of milliwatts), a compact system solution, and RT-cw emission in the 3-6 µm range, which fill the MIR gap perfectly. DFB-ICLs have been used for the ppb-level detection of many important gases, especially hydrocarbon species [63][64][65][66][67][68][69], which leads to many important applications in various areas, for example, clinical diagnostics [70,71], combustion probing [72], environmental monitoring [73,74], and remote sensing.…”

Section: Interband Cascade Lasersmentioning

confidence: 99%

Mid-Infrared Tunable Laser-Based Broadband Fingerprint Absorption Spectroscopy for Trace Gas Sensing: A Review

Zhang

et al. 2019

Applied Sciences

125

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The vast majority of gaseous chemical substances exhibit fundamental rovibrational absorption bands in the mid-infrared spectral region (2.5–25 μm), and the absorption of light by these fundamental bands provides a nearly universal means for their detection. A main feature of optical techniques is the non-intrusive in situ detection of trace gases. We reviewed primarily mid-infrared tunable laser-based broadband absorption spectroscopy for trace gas detection, focusing on 2008–2018. The scope of this paper is to discuss recent developments of system configuration, tunable lasers, detectors, broadband spectroscopic techniques, and their applications for sensitive, selective, and quantitative trace gas detection.

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“…A purpose of the current contribution is to reveal the possibility of controlling the energy band structure in narrow-gap compounds. Such studies should be valuable for development of mid-infrared emitters, in perspective of applications of such Materials 2022, 15, 1419 2 of 11 material systems in, e.g., optical gas sensing [7][8][9][10]. In our work, the main attention is paid to photoluminescent properties of a heterostructure based on bulk InAsSb compounds.…”

Section: Introductionmentioning

confidence: 99%

Photoluminescence Spectroscopy of the InAsSb-Based p-i-n Heterostructure

et al. 2022

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Photoluminescence in a double heterostructure based on a ternary InAsSb solid solution was observed in the mid-infrared range of 2.5–4 μm. A range of compositions of the InAs1-ySby ternary solid solution has been established, where the energy resonance between the band gap and the splitting-off band in the valence band of the semiconductor can be achieved. Due to the impact of nonradiative Auger recombination processes, different temperature dependence of photoluminescence intensity was found for the barrier layer and the narrow-gap active region, respectively. It was shown that efficient high-temperature photoluminescence can be achieved by suppressing the nonradiative Auger recombination (CHHS) process. Increased temperature, for which the energy gap is lower than the split-off band energy, leads to violation of the resonance condition in narrow gap antimonide compounds, which explains the observed phenomenon. This finding might influence future application of the investigated material systems in mid-infrared emitters used for, e.g., optical gas sensing.

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Interband cascade laser–based sensor for ambient CH<sub>4</sub>

Cited by 17 publications

References 14 publications

Optical gas sensing: a review

Optical gas sensing: a review

Mid-Infrared Tunable Laser-Based Broadband Fingerprint Absorption Spectroscopy for Trace Gas Sensing: A Review

Photoluminescence Spectroscopy of the InAsSb-Based p-i-n Heterostructure

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