June 30, 2025 to July 4, 2025
Europe/Vienna timezone

High resolution single molecule spectroscopy in a cryogenic ion trap

Jul 3, 2025, 10:30 AM
30m
Invited Speaker Atomic and molecular spectroscopy, photo-induced processes Spectroscopy 2

Speaker

David Patterson (University of California, Santa Barbara)

Description

Single molecular ions present a highly attractive platform for high resolution and highly sensitive spectroscopy. These molecules can be held for many hours in a pristine environment, and can be motionally laser cooled into the millikelvin regime and below. Prior to this work, methods to study "generic" single molecular ions have not been demonstrated. Here, we demonstrate a novel single molecule action-spectroscopy technique that is compatible with high precision measurement, and present rotationally resolved spectra of single polyatomic ions. The method is generally applicable to a wide range of polyatomic molecular ions, and promises spectral resolution comparable to state of the art quantum logic methods, with significantly less stringent experimental overhead. Progress towards extending this technique to include chiral recognition of single molecules will be discussed. Adaptations of this technique will prove useful in a wide range of precision spectroscopy arenas including the search for parity violating effects in chiral molecules and searches for biological signatures in samples from beyond Earth.

Author

David Patterson (University of California, Santa Barbara)

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