3239198
doi
10.5281/zenodo.3239198
oai:zenodo.org:3239198
user-aquarius
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Hugger, S
Fraunhofer Institute for Applied Solid State Physics
Butschek, L
Fraunhofer Institute for Applied Solid State Physics
Schilling, C
Fraunhofer Institute for Applied Solid State Physics
Merten, A
bFraunhofer Institute for Photonic Microsystems
Schwarzenberg, M
bFraunhofer Institute for Photonic Microsystems
Dreyhaupt, A
bFraunhofer Institute for Photonic Microsystems
Grahmann, J
bFraunhofer Institute for Photonic Microsystems
Rattunde, M
Fraunhofer Institute for Applied Solid State Physics
Ostendorf, R
Fraunhofer Institute for Applied Solid State Physics
Advances of MOEMS-based External Cavity QCLs
Haertelt, M
Fraunhofer Institute for Applied Solid State Physics
doi:10.1117/12.2509819
info:eu-repo/semantics/openAccess
Creative Commons Attribution Non Commercial Share Alike 4.0 International
https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode
quantum cascade lasers
micro-electro-mechanical system scanners
high resolution spectroscopy
gas spectroscopy
real-time spectroscopy
<p>The combination of broadly tunable quantum cascade laser chips in an external cavity (EC-QCL) with a micro- electro-mechanical system (MEMS) scanner with integrated diffraction grating as wavelength-selective element allows for the development of extremely compact and robust spectroscopy systems. Resonant MOEMS grating scanners enable spectral tuning rates of hundreds of wavenumbers per millisecond and consequently broad-band spectroscopy with millisecond temporal resolution. Also non-resonant (quasistatic) MOEMS grating scanners are possible, providing scan rates of tens of Hz as well as static setting of arbitrary wavelengths, as common for mechanically driven EC lasers, while keeping the small MOEMS footprint, ruggedness, and low power consumption. Here, we give a progress report on the latest developments on MOEMS-based EC-QCLs made by Fraunhofer IAF and IPMS. We will highlight two of our latest developments: A non-resonant MOEMS EC-QCL version that allows arbitrary scan frequencies up to few ten Hertz, as well as static operation. Furthermore, we present the application of a resonantly driven cw-MOEMS-EC-QCL with cavity-length control to enable fast high-resolution spectroscopy over a spectral range of >100 cm-1, offering new possibilities for spectroscopy on complex gas mixtures.</p>
M. Haertelt, S. Hugger, L. Butschek, C. Schilling, A. Merten, M. Schwarzenberg, A. Dreyhaupt, J. Grahmann, M. Rattunde, R. Ostendorf, "Advances of MOEMS-based external cavity QCLs," Proc. SPIE 10926, Quantum Sensing and Nano Electronics and Photonics XVI, 1092613 (11 February 2019)
copyright 2019 Society of PhotoOptical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, dupplication of any material in this paper for fee or commercial puposes, or modification of the content of the paper are prohibited.
Zenodo
2019-06-05
info:eu-repo/semantics/conferencePaper
3239197
user-aquarius
user-eu
award_title=BROADBAND TUNABLE QCL BASED SENSOR FOR ONLINE AND INLINE DETECTION OF CONTAMINANTS IN WATER; award_number=731465; award_identifiers_scheme=url; award_identifiers_identifier=https://cordis.europa.eu/projects/731465; funder_id=00k4n6c32; funder_name=European Commission;
1579539433.860289
5240927
md5:1196783c6bcce5c255d68db0b904dc54
https://zenodo.org/records/3239198/files/20190130_ProcSPIE_Letter.pdf
public
10.1117/12.2509819
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doi
10.5281/zenodo.3239197
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