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Viewpoint: Molecular Interferometry Makes a New Break

Gil S. Summy

Published Dec 2, 2014• 0 citations
OpenAlex

Abstract

A new technique in matter-wave interferometry using laser light to fragment molecules may open the door to interference demonstrations with large bio-molecules or nanoclusters.

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Molecular Interferometry Makes a New Break

Gil S. Summy

Extending the range of quantum interferometry to a wider class of composite nanoparticles requires new tools to diffract matter waves.Recently, pulsed photoionization light gratings have demonstrated their suitability for high mass matter-wave physics.Here, we extend quantum interference experiments to a new class of particles by introducing photofragmentation beam splitters into time-domain matter-wave interferometry.We present data that demonstrate this coherent beam splitting mechanism with clusters of hexafluorobenzene and we show single-photon depletion gratings based both on fragmentation and ionization for clusters of vanillin.We propose that photofragmentation gratings can act on a large set of van der Waals clusters and biomolecules which are thermally unstable and often resilient to single-photon ionization.

Physics•Dec 2, 2014•2 citations
Extending the range of quantum interferometry to a wider class of composite nanoparticles requires new tools to diffract matter waves.Recently, pulsed photoionization light gratings have demonstrated their suitability for high mass matter-wave physics.Here, we extend quantum interference experiments to a new class of particles by introducing photofragmentation beam splitters into time-domain matter-wave interferometry.We present data that demonstrate this coherent beam splitting mechanism with clusters of hexafluorobenzene and we show single-photon depletion gratings based both on fragmentation and ionization for clusters of vanillin.We propose that photofragmentation gratings can act on a large set of van der Waals clusters and biomolecules which are thermally unstable and often resilient to single-photon ionization.