Nonlinear interferometers for broadband mid-infrared spectroscopy

Chiara Lindner; Sebastian Wolf; Jens Kießling; Frank Kühnemann

doi:10.1117/12.2545883

2 March 2020 Nonlinear interferometers for broadband mid-infrared spectroscopy

Chiara Lindner, Sebastian Wolf, Jens Kießling, Frank Kühnemann

Proceedings Volume 11264, Nonlinear Frequency Generation and Conversion: Materials and Devices XIX; 112641D (2020) https://doi.org/10.1117/12.2545883
Event: SPIE LASE, 2020, San Francisco, California, United States

Abstract

Mid-infrared spectroscopy is one of the most important techniques in chemical analysis. However, the detectors for the mid-infrared range suffer from lower specific detectivities in comparison to their visible counterparts, cost more and often require cryogenic cooling. Nonlinear interferometers allow measuring mid-infrared spectra by detecting only visible light using the induced coherence effect. In our work, we realize a nonlinear interferometer designed for broadband mid-infrared spectra with high resolution, which is easily tunable, and in analogy to classical Fourier transform infrared (FTIR) spectrometers requires no additional spectral selection.

Conference Presentation

Citation Download Citation

Chiara Lindner, Sebastian Wolf, Jens Kießling, and Frank Kühnemann "Nonlinear interferometers for broadband mid-infrared spectroscopy", Proc. SPIE 11264, Nonlinear Frequency Generation and Conversion: Materials and Devices XIX, 112641D (2 March 2020); https://doi.org/10.1117/12.2545883

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