Unobtrusive interferometer tracking by path length oscillation for multidimensional spectroscopy

Unobtrusive interferometer tracking by path length oscillation for multidimensional spectroscopy.

We track the path difference between interferometer arms with few-nanometer accuracy without adding optics to the beam path. We measure the interference of a helium-neon beam that copropagates through the interferometer with midinfrared pulses used for multidimensional spectroscopy. This can indicate motion, but not direction. By oscillating the path length of one arm with a mirror on a piezoel...

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pHotoN patH leNgtH distributioN model for reflectaNce spectroscopy

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Astigmatic mirror multipass absorption cells for long-path-length spectroscopy.

A multipass absorption cell, based on an astigmatic variant of the off-axis resonator (Herriott) configuration, has been designed to obtain long path lengths in small volumes. Rotation of the mirror axes is used to obtain an effective adjustability in the two mirror radii. This allows one to compensate for errors in mirror radii that are encountered in manufacture, thereby generating the desire...

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pHotoN patH leNgtH distributioN model for reflectaNce spectroscopy

Disclaimer/Complaints regulations If you believe that digital publication of certain material infringes any of your rights or (privacy) interests, please let the Library know, stating your reasons. In case of a legitimate complaint, the Library will make the material inaccessible and/or remove it from the website. Please Ask the Library: http://uba.uva.nl/en/contact, or a letter to: Library of ...

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pHotoN patH leNgtH distributioN model for reflectaNce spectroscopy

Disclaimer/Complaints regulations If you believe that digital publication of certain material infringes any of your rights or (privacy) interests, please let the Library know, stating your reasons. In case of a legitimate complaint, the Library will make the material inaccessible and/or remove it from the website. Please Ask the Library: http://uba.uva.nl/en/contact, or a letter to: Library of ...

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Unobtrusive interferometer tracking by path length oscillation for multidimensional spectroscopy

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