Nanospectroscopie infrarouge avancée : développements instrumentaux et applications

Abstract : For 10 years, near-field technologies applied to infrared spectroscopy have reached milestones and now are able to make analysis at nanoscale. In my PhD thesis, I will focus on one of these techniques: the so-called AFM-IR technique which combined an atomic force microscope (AFM) with a pulse laser tunable in the infrared spectral range.The main goal of my PhD thesis will be to present the last developments which appears for this technique such as resonance enhanced AFM-IR, tapping mode AFM-IR or the first measurements of AFM-IR with broadband sources. These developments are major in the field of the technique and have led to high increase of the numbers of users. However, AFM-IR remains a recent and complicated technique where user has to master in the same time atomic force microscopy and infrared spectroscopy.The last technological developments allow measurements at the nanoscale. This has multiple consequences, especially it opens new applications fields. It also generates new problematic and new experimental challenges. As a consequence, it is necessary to understand new technological limitations created by these new developments in order to stay critical of the results obtained with an AFM-IR measurement and avoid analysis and interpretation errors which can have bad consequences on the different fields of study.
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Jérémie, Mathurin. Nanospectroscopie infrarouge avancée : développements instrumentaux et applications. Biophysique [physics.bio-ph]. Université Paris-Saclay, 2019. Français. ⟨NNT : 2019SACLS188⟩. ⟨tel-02273795⟩

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