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Precision Measurement for Metastable Helium Atoms of the 413 nm Tune-Out Wavelength at Which the Atomic Polarizability Vanishes

Henson, Bryce; Khakimov, Roman; Dall, Robert; Tang, Li-Yan; Truscott, Andrew; Baldwin, Kenneth

Description

We present the first measurement for helium atoms of the tune-out wavelength at which the atomic polarizability vanishes. We utilize a novel, highly sensitive technique for precisely measuring the effect of variations in the trapping potential of confined metastable (2S13) helium atoms illuminated by a perturbing laser light field. The measured tune-out wavelength of 413.0938(9stat)(20syst)nm compares well with the value predicted by a theoretical calculation [413.02(9) nm] which is sensitive...[Show more]

CollectionsANU Research Publications
Date published: 2015
Type: Journal article
URI: http://hdl.handle.net/1885/152396
Source: Physical Review Letters
DOI: 10.1103/PhysRevLett.115.043004

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