Fraunhofer-Gesellschaft

Publica

Hier finden Sie wissenschaftliche Publikationen aus den Fraunhofer-Instituten.
2019Advances of MOEMS-based external cavity QCLs
Härtelt, Marko; Hugger, Stefan; Butschek, Lorenz; Schilling, Christian; Merten, André; Schwarzenberg, Markus; Dreyhaupt, André; Grahmann, Jan; Rattunde, Marcel; Ostendorf, Ralf
Conference Paper
2019Broadly tunable hetero-cascading quantum cascade lasers
Yang, Quankui K.; Hugger, Stefan; Aidam, Rolf; Driad, Rachid; Schilling, Christian; Heussen, Henning; Kirste, Lutz; Ostendorf, Ralf
Journal Article
2019Quasi-statischer MOEMS-Gitterscanner zum spektralen Durchstimmen eines MIR-Quantenkaskadenlasers
Merten, André; Schroedter, Richard; Dreyhaupt, André; Graßhoff, Thomas; Schwarzenberg, Markus; Hugger, Stefan; Schilling, Christian; Grahmann, Jan; Ostendorf, Ralf
Journal Article
2018Microoptoelectromechanical systems-based external cavity quantum cascade lasers for real-time spectroscopy
Butschek, Lorenz; Hugger, Stefan; Jarvis, Jan-Philip; Härtelt, Marko; Merten, André; Schwarzenberg, Markus; Grahmann, Jan; Stothard, David; Warden, Matthew; Carson, Christoph; Macarthur, John; Fuchs, Frank; Ostendorf, Ralf; Wagner, Joachim
Journal Article
2018Towards a compact, portable, handheld device for contactless real-time standoff detection of hazardous substances
Carson, Christopher; Macarthur, John; Warden, Mattew; Stothard, David; Butschek, Lorenz; Hugger, Stefan; Jarvis, Jan-Philip; Härtelt, Marko; Ostendorf, Ralf; Merten, André; Schwarzenberg, Markus; Grahmann, Jan; Ratajczyk, Marcin
Conference Paper
2017100 W-level peak-power laser system tunable from 8 to 10 μm
Gutty, Francois; Grisard, Arnaud; Larat, Christian; Papillon, Dominique; Schwarz, Muriel; Gerard, Bruno; Ostendorf, Ralf; Rattunde, Marcel; Wagner, Joachim; Lallier, Eric
Conference Paper
2017140 W peak power laser system tunable in the LWIR
Gutty, F.; Grisard, A.; Larat, C.; Papillon, D.; Schwarz, M.; Gerard, B.; Ostendorf, R.; Rattunde, M.; Wagner, J.; Lallier, E.
Journal Article
2017High peak-power laser system tuneable from 8 to 10 μm
Gutty, F.; Grisard, A.; Larat, C.; Papillon, D.; Schwarz, M.; Gérard, B.; Ostendorf, R.; Wagner, J.; Lallier, E.
Journal Article
2017Hyperspectral data acquisition and analysis in imaging and real-time active MIR backscattering spectroscopy
Jarvis, Jan-Philip; Härtelt, Marko; Hugger, Stefan; Butschek, Lorenz; Fuchs, Frank; Ostendorf, Ralf; Wagner, Joachim; Beyerer, Juergen
Journal Article
2017Hyperspectral imaging for standoff trace detection of explosives using quantum cascade lasers
Fuchs, F.; Hugger, S.; Jarvis, J.P.; Härtelt, M.; Yang, Q.K.K.; Rattunde, M.; Ostendorf, R.; Schilling, C.; Driad, R.; Aidam, R.; Wagner, J.
Conference Paper
2017Miniaturisierte Laserlichtquelle für Infrarotspektroskopie
Merten, A.; Dreyhaupt, A.; Hugger, S.; Butschek, L.; Grahmann, J.; Schwarzenberg, M.; Ostendorf, R.; Jarvis, J.; Härtelt, M.
Conference Paper
2017Real-time spectroscopy enabled by external cavity QCLs with MOEMS diffraction gratings
Butschek, Lorenz; Hugger, Stefan; Jarvis, Jan-Philip; Härtelt, Marko; Merten, André; Grahmann, Jan; Boskovic, Dusan; Fuchs, Frank; Ostendorf, Ralf; Schilling, Christian; Rattunde, Marcel; Wagner, Joachim
Conference Paper
2017Verfahren zum berührungslosen und zerstörungsfreien Bestimmen eines Anteils mindestens einer freien Fettsäure oder mindestens eines Oxidationsprodukts auf einer Oberfläche eines Lebens- oder Futtermittels
Tybussek, Thorsten; Rieblinger, Klaus; Ostendorf, Ralf
Patent
2016Hyperspectral image analysis for standoff trace detection using IR laser spectroscopy
Jarvis, J.P.; Fuchs, F.; Hugger, S.; Ostendorf, R.; Butschek, L.; Yang, Q.; Dreyhaupt, A.; Grahmann, J.; Wagner, J.
Conference Paper
2016Imaging standoff trace detection of explosives using IR-laser based backscattering
Fuchs, F.; Hugger, S.; Jarvis, J.; Yang, Q.K.; Ostendorf, R.; Schilling, C.; Bronner, W.; Driad, R.; Aidam, R.; Wagner, J.
Conference Paper
2016Miniaturized quantum cascade lasers enable fast Mid-IR spectroscopy
Ostendorf, R.
Journal Article
2016MOEMS EC-QCL for real-time identification of chemical compounds
Ostendorf, R.; Butschek, L.; Merten, A.; Dreyhaupt, A.; Grahmann, J.; Rattunde, M.; Jarvis, J.; Härtelt, M.; Hugger, S.; Fuchs, F.; Wagner, J.
Conference Paper
2016Quantum cascade laser based active hyperspectral imaging for standoff detection of chemicals on surfaces
Hugger, Stefan; Fuchs, Frank; Jarvis, J.P.; Yang, Q.K.; Rattunde, M.; Ostendorf, R.; Schilling, C.; Draid, R.; Bronner, W.; Aidam, R.; Wagner, J.; Tybussek, Thorsten; Rieblinger, Klaus
Conference Paper
2016Real-time spectroscopic sensing using a widely tunable external cavity-QCL with MOEMS diffraction grating
Ostendorf, R.; Butschek, L.; Merten, A.; Grahmann, J.; Jarvis, J.P.; Hugger, S.; Fuchs, F.; Wagner, J.
Conference Paper
2016Recent advances and applications of external Cavity-QCLs towards hyperspectral imaging for standoff detection and real-time spectroscopic sensing of chemicals
Ostendorf, R.; Butschek, L.; Hugger, S.; Fuchs, F.; Yang, Q.; Jarvis, J.; Schilling, C.; Rattunde, M.; Merten, A.; Grahmann, J.; Boskovic, D.; Tybussek, T.; Rieblinger, K.; Wagner, J.
Journal Article
2015Detection of explosives and their precursors using imaging mid-infrared laser backscattering spectroscopy
Fuchs, F.; Hugger, S.; Jarvis, J.; Yang, Q.K.; Ostendorf, R.; Schilling, C.; Driad, R.; Aidam, R.; Bächle, A.; Bronner, W.; Wagner, J.
Conference Paper
2015High peak power optical parametric amplification of a 7-9 µm tunable external-cavity quantum cascade laser source
Gutty, F.; Grisard, A.; Larat, C.; Joly, A.; Antier, M.; Papillon, D.; Gerard, B.; Ostendorf, R.; Lallier, E.
Conference Paper
2015Large MOEMS diffraction grating results providing an EC-QCL wavelength scan of 20%
Grahmann, J.; Merten, A.; Herrmann, A.; Ostendorf, R.; Bleh, D.; Drabe, C.; Kamenz, J.
Conference Paper
2015Mikroelektromechanisches System zum Durchstimmen von Lasern
Schenk, Harald; Grahmann, Jan; Wagner, Joachim; Ostendorf, Ralf; Rattunde, Marcel
Patent
2015Standoff trace detection of explosives with active infrared hyperspectral imagery
Fuchs, F.; Hugger, S.; Jarvis, J.P.; Yang, Q.K.; Ostendorf, R.; Wagner, J.; Schilling, C.; Bronner, W.; Driad, R.; Aidam, R.
Conference Paper
2015Standoff trace detection of explosives with infrared hyperspectral imagery
Fuchs, F.; Hugger, S.; Jarvis, J.P.; Yang, Q.K.; Zaum, F.; Ostendorf, R.; Schilling, C.; Bronner, W.; Driad, R.; Aidam, R.; Wagner, J.
Conference Paper
2015Widely tuneable quantum cascade lasers for spectroscopic sensing
Wagner, J.; Ostendorf, R.; Grahmann, Jan; Merten, André; Hugger, S.; Jarvis, J.P.; Fuchs, F.; Boskovic, D.; Schenk, Harald
Conference Paper
2014Combining external cavity quantum cascade lasers and MOEMS technology: An approach for miniaturization and fast wavelength scanning
Ambacher, O.; Ostendorf, R.; Bleh, D.; Merten, A.; Grahmann, J.; Schmidt, R.; Kunzer, M.; Hugger, S.; Wagner, J.
Conference Paper
2014Comparative analysis of quantum cascade laser modeling based on density matrices and non-equilibrium Green's functions
Lindskog, M.; Wolf, J.M.; Trinite, V.; Liverini, V.; Faist, J.; Maisons, G.; Carras, M.; Aidam, R.; Ostendorf, R.; Wacker, A.
Journal Article
2014Spectroscopic detection of hazardous substances using broadband-tunable quantum cascade lasers
Hugger, S.; Fuchs, F.; Jarvis, J.; Yang, Q.K.; Driad, R.; Bronner, W.; Aidam, R.; Ostendorf, R.; Wagner, J.
Conference Paper
2014Trace detection of explosive substances in hyperspectral imagery
Jarvis, J.P.; Fuchs, F.; Hugger, S.; Blattmann, V.; Yang, Q.; Ostendorf, R.; Bronner, W.; Driad, R.; Aidam, R.; Wagner, J.; Beyerer, Jürgen
Conference Paper
2014Tunable external cavity quantum cascade lasers (EC-QCL): An application field for MOEMS based scanning gratings
Grahmann, Jan; Merten, André; Ostendorf, Ralf; Fontenot, Michael; Bleh, Daniela; Schenk, Harald; Wagner, Hans-Joachim
Conference Paper
2013Broadband-tunable external-cavity quantum cascade lasers for spectroscopy and standoff detection
Fuchs, F.; Hugger, S.; Yang, Q.K.; Jarvis, J.P.; Kinzer, M.; Ostendorf, R.; Schilling, C.; Driad, R.; Bronner, W.; Bächle, A.; Aidam, R.; Wagner, J.
Book Article
2013Correlation between noise properties and coherent coupling of lateral modes in quantum cascade lasers
Kinzer, M.; Yang, Q.K.; Hugger, S.; Schilling, C.; Ostendorf, R.; Aidam, R.; Driad, R.; Bronner, W.; Fuchs, F.; Wagner, J.
Journal Article
2013Detection of hazardous substances using broadband-tuneable quantum cascade laser based mid-infrared spectroscopy
Fuchs, F.; Hugger, S.; Jarvis, J.; Yang, Q.K.; Ostendorf, R.; Schilling, C.; Driad, R.; Aidam, R.; Bächle, A.; Bronner, W.; Wagner, J.
Conference Paper
2013Hyperspectral image analysis for standoff detection of explosives
Jarvis, J.P.; Fuchs, F.; Hugger, S.; Blattmann, V.; Yang, Q.K.; Ostendorf, R.; Bronner, W.; Driad, R.; Aidam, R.; Wagner, J.; Beyerer, Jürgen
Conference Paper
2013Infrared hyperspectral standoff detection of explosives
Fuchs, F.; Hugger, S.; Jarvis, J.P.; Blattmann, V.; Kinzer, M.; Yang, Q.K.; Ostendorf, R.; Bronner, W.; Driad, R.; Aidam, R.; Wagner, J.
Conference Paper
2013Multi-wavelength and multi-band infrared semiconductor lasers
Ostendorf, R.; Hugger, S.; Rattunde, M.; Schilling, C.; Kaspar, S.; Aidam, R.; Baechle, A.; Manz, C.; Driad, R.; Fuchs, F.; Wagner, J.
Conference Paper
2012Dispersion of effective refractive indices of mid-infrared quantum cascade lasers
Yang, Q.K.; Kinzer, M.; Aidam, R.; Driad, R.; Bronner, W.; Hugger, S.; Ostendorf, R.; Fuchs, F.; Wagner, J.
Journal Article
2012Imaging standoff detection of explosives with broad band tunable quantum cascade lasers
Fuchs, F.; Jarvis, J.; Hugger, S.; Kinzer, M.; Yang, Q.K.; Ostendorf, R.; Bronner, W.; Driad, R.; Aidam, R.; Wagner, J.
Conference Paper
2012Wall-plug efficiency of mid-infrared quantum cascade lasers
Yang, Q.K.; Schilling, C.; Ostendorf, R.; Hugger, S.; Fuchs, F.; Wagner, J.
Journal Article
2011Reduced threshold current dilute nitride Ga(NAsP)/GaP quantum well lasers grown by MOVPE
Hossain, N.; Sweeney, S.J.; Rogowsky, S.; Ostendorf, R.; Wagner, J.; Liebich, S.; Zimprich, M.; Volz, K.; Kunert, B.; Stolz, W.
Journal Article
2011Vibrational mode and dielectric function spectra of BGaP probed by Raman scattering and spectroscopic ellipsometry
Rogowsky, S.; Baeumler, M.; Wolfer, M.; Kirste, L.; Ostendorf, R.; Wagner, J.; Liebich, S.; Stolz, W.; Volz, K.; Kunert, B.
Journal Article
2010External cavity spectral beam combining of 4.6 µm emitting quantum cascade laser arrays
Ostendorf, R.; Hugger, S.; Aidam, R.; Bronner, W.; Fuchs, F.; Lösch, R.; Yang, Q.K.; Wagner, J.; Romasew, E.; Raab, M.; Tholl, H.D.
Conference Paper
2010Optical investigation of the BGaP/GaP/Si material system
Baeumler, M.; Rogowsky, S.; Wolfer, M.; Kirste, L.; Ostendorf, R.; Wagner, J.; Liebich, S.; Kunert, B.; Stolz, W.
Conference Paper
2010Spectral beam combining of a 980 nm tapered diode laser bar
Vijayakumar, D.; Jensen, O.B.; Ostendorf, R.; Westphalen, T.; Thestrup, B.
Journal Article
2009High-power frequency stabilized tapered diode amplifiers at 1064 nm
Ostendorf, R.; Schilling, C.; Kaufel, G.; Moritz, R.; Wagner, J.; Kochem, G.; Friedmann, P.; Gilly, J.; Kelemen, M.T.
Conference Paper
2009Packaging influence on laser bars of different dimensions
Westphalen, T.; Leers, M.; Werner, M.; Traub, M.; Hoffmann, H.-D.; Ostendorf, R.
Conference Paper
2009Pressure tuning of external-cavity tapered laser
Trzeciakowski, W.; Dybala, F.; Mrozowicz, M.; Bercha, A.; Piechal, B.; Ostendorf, R.; Gilly, J.; Kelemen, T.
Journal Article
2009Tunable GaAs-based high power tapered amplifiers in an external cavity setup
Schilling, C.; Ostendorf, R.; Kaufel, G.; Moritz, R.; Wagner, J.; Ambacher, O.
Conference Paper
200810 W high-efficiency high-brightness tapered diode lasers at 976 nm
Ostendorf, R.; Kaufel, G.; Moritz, R.; Mikulla, M.; Ambacher, O.; Kelemen, M.; Gilly, J.
Conference Paper
20085 W frequency stabilized 976 nm tapered diode laser
Friedmann, P.; Gilly, J.; Moritz, S.; Ostendorf, R.; Kelemen, M.T.
Conference Paper
2008High-brightness quantum well and quantum dot tapered lasers
Michel, N.; Krakowski, M.; Hassiaoui, I.; Calligaro, M.; Lecomte, M.; Parillaud, O.; Weinmann, P.; Zimmermann, C.; Kaiser, W.; Kamp, M.; Forchel, A.; Pavelescu, E.-M.; Reithmaier, J.-P.; Sumpf, B.; Erbert, G.; Kelemen, M.; Ostendorf, R.; García-Tijero, J.-M.; Odriozola, H.; Esquivias, I.
Conference Paper