Herdt, Andreas (2020)
The laser-as-detector approach exploiting mid-infrared emitting interband cascade lasers: A potential for spectroscopy and communication applications.
Technische Universität Darmstadt
doi: 10.25534/tuprints-00017369
Dissertation, Erstveröffentlichung, Verlagsversion
Kurzbeschreibung (Abstract)
Interband cascade lasers are exceptionally versatile, high-tech semiconductor lasers. They represent the latest generation of semiconductor lasers that generate radiation in the mid-infrared wavelength domain and are therefore preferred as coherent light sources in spectroscopy and free-space-communication setups. In this thesis they are used to evaluate the so-called laser-as-detector approach. The laser-as-detector approach is a well-known but little used technique that allows dispensing external optical detection units. A semiconductor laser itself is used as a detector, even though it is operating as usual. The principle is based on the fact that external optical perturbation change the charge carrier density in the interband-cascade-laser and manifest themselves accordingly in changes of the terminal voltage. Using the laser-as-detector approach, two spectroscopic methane sensors are then set up and their detection limits are evaluated. The laser-as-detector approach is then used to build a free-space-communication communication device without any detector.
Typ des Eintrags: | Dissertation | ||||
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Erschienen: | 2020 | ||||
Autor(en): | Herdt, Andreas | ||||
Art des Eintrags: | Erstveröffentlichung | ||||
Titel: | The laser-as-detector approach exploiting mid-infrared emitting interband cascade lasers: A potential for spectroscopy and communication applications | ||||
Sprache: | Englisch | ||||
Referenten: | Elsäßer, Prof. Dr. Wolfgang ; Walther, Prof. Dr. Thomas | ||||
Publikationsjahr: | 13 Oktober 2020 | ||||
Ort: | Darmstadt | ||||
Datum der mündlichen Prüfung: | 9 Dezember 2020 | ||||
DOI: | 10.25534/tuprints-00017369 | ||||
URL / URN: | https://tuprints.ulb.tu-darmstadt.de/17369 | ||||
Kurzbeschreibung (Abstract): | Interband cascade lasers are exceptionally versatile, high-tech semiconductor lasers. They represent the latest generation of semiconductor lasers that generate radiation in the mid-infrared wavelength domain and are therefore preferred as coherent light sources in spectroscopy and free-space-communication setups. In this thesis they are used to evaluate the so-called laser-as-detector approach. The laser-as-detector approach is a well-known but little used technique that allows dispensing external optical detection units. A semiconductor laser itself is used as a detector, even though it is operating as usual. The principle is based on the fact that external optical perturbation change the charge carrier density in the interband-cascade-laser and manifest themselves accordingly in changes of the terminal voltage. Using the laser-as-detector approach, two spectroscopic methane sensors are then set up and their detection limits are evaluated. The laser-as-detector approach is then used to build a free-space-communication communication device without any detector. |
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Alternatives oder übersetztes Abstract: |
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Status: | Verlagsversion | ||||
URN: | urn:nbn:de:tuda-tuprints-173693 | ||||
Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 500 Naturwissenschaften und Mathematik > 500 Naturwissenschaften 500 Naturwissenschaften und Mathematik > 530 Physik |
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Fachbereich(e)/-gebiet(e): | 05 Fachbereich Physik 05 Fachbereich Physik > Institut für Angewandte Physik 05 Fachbereich Physik > Institut für Angewandte Physik > Halbleiter Optik |
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TU-Projekte: | VDI|13N14729|ILLIAS | ||||
Hinterlegungsdatum: | 23 Dez 2020 08:43 | ||||
Letzte Änderung: | 05 Jan 2021 08:22 | ||||
PPN: | |||||
Referenten: | Elsäßer, Prof. Dr. Wolfgang ; Walther, Prof. Dr. Thomas | ||||
Datum der mündlichen Prüfung / Verteidigung / mdl. Prüfung: | 9 Dezember 2020 | ||||
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