TY - JOUR
AU1 - Lindner, Chiara
AU2 - Wolf, Sebastian
AU3 - Kiessling, Jens
AU4 - Kühnemann, Frank
AU5 - 
AB - Fourier transform infrared spectroscopy with visible light CHIARA LINDNER, SEBASTIAN WOLF, JENS KIESSLING, AND FRANK KÜHNEMANN Fraunhofer Institute for Physical Measurement Techniques IPM, Heidenhofstrasse 8, 79110 Freiburg, Germany chiara.lindner@ipm.fraunhofer.de Abstract: Nonlinear interferometers allow spectroscopy in the mid-infrared range by detecting correlated visible light, for which non-cooled detectors with higher specific detectivity and lower dark count rates are available. We present a new approach for the registration of spectral information, which combines a nonlinear interferometer using non-degenerate spontaneous parametric down-conversion (SPDC) with a Fourier-transform spectroscopy concept. In order to increase the spectral coverage, we use broadband non-collinear SPDC in periodically poled LiNbO . Without the need for spectrally selective detection, continuous spectra with a spectral bandwidth of more than 100 cm are achieved. We demonstrate transmission spectra of a polypropylene sample measured with 6 cm resolution in the spectral range between 3:2 μm to 3:9 μm. © 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement 1. Introduction Mid-infrared spectroscopy is one of the most important techniques for chemical analysis of organic compounds. It finds a wide range of applications in industry and science. However, the detectors available for the mid-infrared range suffer from 
TI - Fourier transform infrared spectroscopy with visible light
JF - Optics Express
DO - 10.1364/oe.382351
DA - 2020-02-03
UR - https://www.deepdyve.com/lp/unpaywall/fourier-transform-infrared-spectroscopy-with-visible-light-tRwyLtZD0R
DP - DeepDyve
ER -