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Applied Optics|February 2, 2011
External cavity tunable quantum cascade lasers and their applications to trace gas monitoringGottipaty N Rao, Andreas KarpfApplied Optics|September 11, 2010
High sensitivity detection of NO2 employing cavity ringdown spectroscopy and an external cavity continuously tunable quantum cascade laserGottipaty N Rao, Andreas KarpfApplied Optics|May 3, 2011
Extremely sensitive detection of NO₂ employing off-axis integrated cavity output spectroscopy coupled with multiple-line integrated absorption spectroscopyGottipaty N Rao, Andreas KarpfApplied Optics|July 21, 2015
Real-time trace gas sensor using a multimode diode laser and multiple-line integrated cavity enhanced absorption spectroscopyAndreas Karpf, Gottipaty N RaoApplied Optics|September 22, 2009
Enhanced sensitivity for the detection of trace gases using multiple line integrated absorption spectroscopyAndreas Karpf, Gottipaty N RaoApplied Optics|March 12, 2010
Enhancement of trace gas detection by integrating wavelength modulated spectra across multiple linesAndreas Karpf, Gottipaty N RaoApplied Optics|January 13, 2009
Absorption and wavelength modulation spectroscopy of NO2 using a tunable, external cavity continuous wave quantum cascade laserAndreas Karpf, Gottipaty N RaoApplied Optics|July 14, 2016
Ultrasensitive, real-time trace gas detection using a high-power, multimode diode laser and cavity ringdown spectroscopyAndreas Karpf, Yuhao Qiao, Gottipaty N RaoScientific Reports|November 3, 2023
Detection of cracks in concrete using near-IR fluorescence imagingAndreas Karpf, Michael Selig, Aktham Alchaar, et al.Plos One|November 12, 2016
Cohesion and Coalition Formation in the European Parliament: Roll-Call Votes and Twitter ActivitiesDarko Cherepnalkoski, Andreas Karpf, Igor Mozetič, et al.Pageof 2