Fraunhofer-Gesellschaft

Publica

Hier finden Sie wissenschaftliche Publikationen aus den Fraunhofer-Instituten.
2017QEPAS with electrical co-excitation for photoacoustic measurements in fluctuating background gases
Mordmueller, M.; Schade, W.; Willer, U.
Journal Article
2015An electrically and optically cooperated QEPAS device for highly integrated gas sensors
Mordmüller, M.; Köhring, M.; Schade, W.; Willer, U.
Journal Article
2015LED-absorption-QEPAS sensor for biogas plants
Köhring, M.; Böttger, S.; Willer, U.; Schade, W.
Journal Article
2015New design for a wavelength demultiplexing device
Bethmann, K.; Orghici, R.; Pichler, E.; Zywietz, U.; Schmidt, T.; Gleissner, U.; Kelb, C.; Roth, B.; Reinhardt, C.; Willer, U.; Schade, W.
Conference Paper
2015Photoacoustic sensing with micro-tuning forks
Willer, U.; Köhring, M.; Mordmüller, M.; Schade, W.
Conference Paper
2015Ring resonators in polymer foils for sensing of gaseous species
Pichler, E.; Bethmann, K.; Zywietz, U.; Spad, C.; Gleissner, U.; Kelb, C.; Roth, B.; Reinhardt, C.; Willer, U.; Schade, W.
Conference Paper
2014Influence of the metal-semiconductor contact by energy harvesting from vertically aligned zinc oxide nanowires
Comjani, F.F.; Willer, U.; Kontermann, S.; Schade, W.
Journal Article
2014Photoacoustic spectroscopy with micro-tuning forks - a versatile tool for gas sensing
Köhring, M.; Willer, U.; Schade, W.
Conference Paper
2014QCL-based TDLAS sensor for detection of NO toward emission measurements from ovarian cancer cells
Köhring, M.; Huang, S.; Jahjah, M.; Jiang, W.; Ren, W.; Willer, U.; Caneba, C.; Yang, L.; Nagrath, D.; Schade, W.; Tittel, F.K.
Journal Article
2014Simultaneous detection of Raman- and collision-induced molecular rotations of O2 and N2 via femtosecond multi-pulses in combination with quartz-enhanced photoacoustic spectroscopy
Schippers, W.; Köhring, M.; Böttger, S.; Willer, U.; Flachenecker, G.; Schade, W.
Journal Article
2013Absorption spectroscopy of CO2 at 4.3 m utilizing an off-beam QEPAS Spectrophone and an IR-LED
Böttger, S.; Willer, U.; Schade, W.
Conference Paper
2013Application of quantum cascade lasers for safety and security
Schade, W.; Willer, U.; Mordmüller, M.
Book Article
2013Modelling the growth of ZnO nanocombs based on the piezoelectric effect
Fattahi Comjani, F.; Willer, U.; Kontermann, S.; Schade, W.
Journal Article
2013Off-beam quartz-enhanced photoacoustic spectroscopy with LEDs
Böttger, S.; Köhring, M.; Willer, U.; Schade, W.
Journal Article
2013Resonant photoacoustic gas sensing with silicon tuning forks
Kohring, M.; Willer, U.; Schade, W.
Conference Paper
2013Synthesis of ZnO nanowalls and nanocombs by vapor-liquid-solid method
Comjani, F.F.; Willer, U.; Kontermann, S.; Schade, W.
Journal Article
2013Temperature effects in tuning fork enhanced interferometric photoacoustic spectroscopy
Köhring, M.; Böttger, S.; Willer, U.; Schade, W.
Journal Article
2012Broadband QEPAS with IR-LEDs
Böttger, S.; Willer, U.; Schade, W.
Conference Paper
2012Broadband QEPAS with IR-LEDs
Böttger, S.; Willer, U.; Schade, W.
Conference Paper
2012Fiber-coupled ozone sensor based on tuning fork-enhanced interferometric photoacoustic spectroscopy
Kohring, M.; Willer, U.; Böttger, S.; Pohlkötter, A.; Schade, W.
Journal Article
2012Miniaturized fiber-coupled trace gas sensors based on photoacoustic spectroscopy
Köhring, M.; Willer, U.; Schade, W.
Conference Paper
2011Optical readout of micro tuning forks for spectroscopic applications
Köhring, M.; Willer, U.; Schade, W.
Conference Paper
2011Photonic sensors for explosive detection
Willer, U.; Orghici, R.; Lützow, P.; Schade, W.
Conference Paper
2011Sensitized silicon ring resonators for the detection of TNT in the gas phase
Orghici, R.; Willer, U.; Lützow, P.; Schade, W.
Conference Paper
2011Stimulated Raman rotational photoacoustic spectroscopy using a quartz tuning fork and femtosecond excitation
Schippers, W.; Gershnabel, E.; Burgmeier, J.; Katz, O.; Willer, U.; Averbukh, I.S.; Silberberg, Y.; Schade, W.
Journal Article
2011Structural and optical property tailoring of black silicon with fs-laser pulses
Kontermann, S.; Baumann, A.L.; Gimpel, T.; Guenther, K.M.; Ruibys, A.; Willer, U.; Schade, W.
Conference Paper
2011Tuning fork enhanced interferometric photoacoustic spectroscopy: A new method for trace gas analysis
Köhring, M.; Pohlkötter, A.; Willer, U.; Angelmahr, M.; Schade, W.
Journal Article
2010Detection of molecular oxygen at low concentrations using quartz enhanced photoacoustic spectroscopy
Pohlkötter, A.; Köhring, M.; Willer, U.; Schade, W.
Journal Article
2010Optical fiber setups for the improvement of chemical sensing
Bauer, C.; Willer, U.; Schade, W.
Conference Paper
2010Quantum cascade lasers for the detection of hazardous materials
Willer, U.; Bauer, C.; Schade, W.
Conference Paper
2010Use of quantum cascade lasers for detection of explosives: Progress and challenges
Bauer, C.; Willer, U.; Schade, W.
Journal Article
2009Photonic sensor devices for explosive detection
Willer, U.; Schade, W.
Journal Article
2007LT-GaAsSb photomixer for THz generation with a two-color Nd:LSB microchiplaser
Willer, U.; Wilk, R.; Schippers, W.; Böttger, S.; Nodop, D.; Schossig, T.; Schade, W.; Mikulics, M.; Koch, M.; Walther, M.; Niemann, H.; Güttler, B.
Conference Paper
2007A novel THz source based on a two-color Nd:LSB microchip-laser and a LT-GaAsSb photomixer
Willer, U.; Wilk, R.; Schippers, W.; Nodop, D.; Böttger, S.; Schossig, T.; Schade, W.; Mikulics, M.; Koch, M.; Walther, M.; Niemann, H.; Güttler, B.
Journal Article
2006Photomixing with LT-GaAsSb antennas and a two-color Nd:LSB microchiplaser
Wilk, R.; Mikulics, M.; Schippers, W.; Nodop, D.; Willer, U.; Schade, W.; Walther, M.; Niemann, H.; Guittler, B.; Koch, M.
Conference Paper