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Multi-channel terahertz grating spectrometer with quantum-cascade laser and microbolometer array
Eichholz, Rene and Richter, Heiko and Pavlov, Sergey and Wienold, M. and Schrottke, L. and Hey, R. and Grahn, H. T. and Hübers, Heinz-Wilhelm (2011) Multi-channel terahertz grating spectrometer with quantum-cascade laser and microbolometer array. Applied Physics Letters, 99. DOI: 10.1063/1.3645635.
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Official URL: http://apl.aip.org/resource/1/applab/v99/i14/p141112_s1
Abstract
We report on a terahertz absorption spectrometer, which combines a grating monochromator, a quantum-cascade laser (QCL), and a microbolometer camera. The emission modes of the laser are spectrally resolved by the monochromator and imaged onto the camera. An absorption cell is placed between the QCL and the monochromator, and the absorption spectrum of methanol around 3.4 THz is measured by integrating simultaneously the signal of each of its Fabry-Pe´rot modes as a function of the laser driving current. The frequency coverage of the spectrometer is about 20 GHz.
| Document Type: | Article | ||||||||||||||||||
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| Title: | Multi-channel terahertz grating spectrometer with quantum-cascade laser and microbolometer array | ||||||||||||||||||
| Authors: |
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| Date: | 06 October 2011 | ||||||||||||||||||
| Journal or Publication Title: | Applied Physics Letters | ||||||||||||||||||
| Refereed publication: | Yes | ||||||||||||||||||
| In Open Access: | No | ||||||||||||||||||
| In SCOPUS: | Yes | ||||||||||||||||||
| In ISI Web of Science: | Yes | ||||||||||||||||||
| Volume: | 99 | ||||||||||||||||||
| DOI: | 10.1063/1.3645635 | ||||||||||||||||||
| Status: | Published | ||||||||||||||||||
| Keywords: | QCL, quantum-cascade laser, Quantenkaskadenlaser, microbolometer array, Mikrobolometerkamera, THz, terahertz absorption spectrometer, spectroscopy | ||||||||||||||||||
| HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||||||||
| HGF - Program: | Transport | ||||||||||||||||||
| HGF - Program Themes: | V VM - Verkehrsmanagement | ||||||||||||||||||
| DLR - Research area: | Transport | ||||||||||||||||||
| DLR - Program: | V VM - Verkehrsmanagement | ||||||||||||||||||
| DLR - Research theme (Project): | V - FAMOUS 2 | ||||||||||||||||||
| Location: | Berlin-Adlershof | ||||||||||||||||||
| Institutes and Institutions: | Institute of Planetary Research > Terahertz and Infrared Sensors | ||||||||||||||||||
| Deposited By: | René Eichholz | ||||||||||||||||||
| Deposited On: | 09 Dec 2011 14:59 | ||||||||||||||||||
| Last Modified: | 04 Apr 2013 16:33 |
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