Comparison of a Quantum Cascade Laser and an Interband Cascade Laser for the Detection of Stable Carbon Dioxide Isotopes Using Tunable Laser Absorption Spectroscopy.
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| Title: | Comparison of a Quantum Cascade Laser and an Interband Cascade Laser for the Detection of Stable Carbon Dioxide Isotopes Using Tunable Laser Absorption Spectroscopy. |
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| Authors: | Nitzsche, Ponkanok1 (AUTHOR) ponkanok.nitzsche@imtek.uni-freiburg.de, Dinc, Cem1 (AUTHOR), Goldschmidt, Jens1 (AUTHOR), Nitzsche, Leonard1 (AUTHOR), Wöllenstein, Jürgen1,2 (AUTHOR), Schmitt, Katrin1,2 (AUTHOR) |
| Source: | Applied Spectroscopy. May2025, Vol. 79 Issue 5, p862-871. 10p. |
| Subjects: | Carbon dioxide lasers, Tunable lasers, Light sources, Carbon isotopes, Gas mixtures, Quantum cascade lasers |
| Abstract: | Quantum cascade lasers (QCLs) and interband cascade lasers (ICLs) are widely used as light sources in tunable laser absorption spectroscopy because they emit in the mid-infrared region where many strong and characteristic absorption bands are present. In this paper, we compare the performance of these lasers emitting at about 2310.1 cm–1 to determine an optimal light source for detecting isotopic ratios of carbon dioxide (CO2). Our results show that the QCL has a higher relative intensity noise of up to 15 dBc/Hz compared to the ICL over the entire measured frequency range. In addition, it has a higher frequency fluctuation. However, the maximum tuning range of the QCL is up to 5.2 cm–1 compared to up to 3.8 cm–1 for the ICL. Both lasers lose more than half of their tuning range when the tuning rate is increased to 10 kHz. When measuring the isotope ratio of CO2, an uncertainty in the δ 13 value of σ 13 C , min ICL = 0.17 ‰ was achieved with the ICL and of σ 13 C , min QCL = 0.42 ‰ with the QCL, both at an integration time of 0.2 s. In summary, the QCL is more appropriate for applications that require a larger spectral tuning range, such as the measurement of a complex gas mixture, while the ICL has an excellent signal-to-noise ratio and is therefore better suited for applications that require higher precision. [ABSTRACT FROM AUTHOR] |
| Copyright of Applied Spectroscopy is the property of Sage Publications Inc. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 184955707 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Comparison of a Quantum Cascade Laser and an Interband Cascade Laser for the Detection of Stable Carbon Dioxide Isotopes Using Tunable Laser Absorption Spectroscopy. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Nitzsche%2C+Ponkanok%22">Nitzsche, Ponkanok</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> ponkanok.nitzsche@imtek.uni-freiburg.de</i><br /><searchLink fieldCode="AR" term="%22Dinc%2C+Cem%22">Dinc, Cem</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Goldschmidt%2C+Jens%22">Goldschmidt, Jens</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Nitzsche%2C+Leonard%22">Nitzsche, Leonard</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wöllenstein%2C+Jürgen%22">Wöllenstein, Jürgen</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Schmitt%2C+Katrin%22">Schmitt, Katrin</searchLink><relatesTo>1,2</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Applied+Spectroscopy%22">Applied Spectroscopy</searchLink>. May2025, Vol. 79 Issue 5, p862-871. 10p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Carbon+dioxide+lasers%22">Carbon dioxide lasers</searchLink><br /><searchLink fieldCode="DE" term="%22Tunable+lasers%22">Tunable lasers</searchLink><br /><searchLink fieldCode="DE" term="%22Light+sources%22">Light sources</searchLink><br /><searchLink fieldCode="DE" term="%22Carbon+isotopes%22">Carbon isotopes</searchLink><br /><searchLink fieldCode="DE" term="%22Gas+mixtures%22">Gas mixtures</searchLink><br /><searchLink fieldCode="DE" term="%22Quantum+cascade+lasers%22">Quantum cascade lasers</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Quantum cascade lasers (QCLs) and interband cascade lasers (ICLs) are widely used as light sources in tunable laser absorption spectroscopy because they emit in the mid-infrared region where many strong and characteristic absorption bands are present. In this paper, we compare the performance of these lasers emitting at about 2310.1 cm–1 to determine an optimal light source for detecting isotopic ratios of carbon dioxide (CO2). Our results show that the QCL has a higher relative intensity noise of up to 15 dBc/Hz compared to the ICL over the entire measured frequency range. In addition, it has a higher frequency fluctuation. However, the maximum tuning range of the QCL is up to 5.2 cm–1 compared to up to 3.8 cm–1 for the ICL. Both lasers lose more than half of their tuning range when the tuning rate is increased to 10 kHz. When measuring the isotope ratio of CO2, an uncertainty in the δ 13 value of σ 13 C , min ICL = 0.17 ‰ was achieved with the ICL and of σ 13 C , min QCL = 0.42 ‰ with the QCL, both at an integration time of 0.2 s. In summary, the QCL is more appropriate for applications that require a larger spectral tuning range, such as the measurement of a complex gas mixture, while the ICL has an excellent signal-to-noise ratio and is therefore better suited for applications that require higher precision. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Applied Spectroscopy is the property of Sage Publications Inc. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1177/00037028241291157 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 10 StartPage: 862 Subjects: – SubjectFull: Carbon dioxide lasers Type: general – SubjectFull: Tunable lasers Type: general – SubjectFull: Light sources Type: general – SubjectFull: Carbon isotopes Type: general – SubjectFull: Gas mixtures Type: general – SubjectFull: Quantum cascade lasers Type: general Titles: – TitleFull: Comparison of a Quantum Cascade Laser and an Interband Cascade Laser for the Detection of Stable Carbon Dioxide Isotopes Using Tunable Laser Absorption Spectroscopy. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Nitzsche, Ponkanok – PersonEntity: Name: NameFull: Dinc, Cem – PersonEntity: Name: NameFull: Goldschmidt, Jens – PersonEntity: Name: NameFull: Nitzsche, Leonard – PersonEntity: Name: NameFull: Wöllenstein, Jürgen – PersonEntity: Name: NameFull: Schmitt, Katrin IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 05 Text: May2025 Type: published Y: 2025 Identifiers: – Type: issn-print Value: 00037028 Numbering: – Type: volume Value: 79 – Type: issue Value: 5 Titles: – TitleFull: Applied Spectroscopy Type: main |
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