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4 March 2019 Coherent mid-infrared spectroscopy driven by 2-µm femtosecond lasers (Conference Presentation)
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Traditionally, infrared molecular spectroscopy has been performed with frequency-domain measurement techniques. Recent experiments have exploited the outstanding temporal coherence of state-of-the-art femtosecond lasers to overcome long-standing sensitivity and dynamic range limitations of these traditional techniques, with time-domain measurements. Here, we show how state-of-the-art 2-µm femtosecond technology provides (i) Watt-level infrared sources covering the entire molecular fingerprint region, with a spectral brightness exceeding even that of synchrotrons, (ii) background-free, high-sensitivity and high-dynamic range time-domain detection of molecular vibrations via electro-optical sampling with (iii) attosecond temporal accuracy. These advances herald a new regime for time-, frequency- and space-resolved molecular vibrational metrology.
Conference Presentation
© (2019) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Thomas P. Butler, Daniel Gerz, Christina Hofer, Marinus Huber, Wolfgang Schweinberger, Jia Xu, Nikolai Lilienfein, Christian Gaida, Tobias Heuermann, Martin Gebhardt, Evgeny Shestaev, Jens Limpert, Ferenc Krausz, and Ioachim Pupeza "Coherent mid-infrared spectroscopy driven by 2-µm femtosecond lasers (Conference Presentation)", Proc. SPIE 10902, Nonlinear Frequency Generation and Conversion: Materials and Devices XVIII, 109020U (4 March 2019);

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