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Optical polarizabilities of large molecules measured in near-field interferometry

Optical polarizabilities of large molecules measured in near-field interferometry
Optical polarizabilities of large molecules measured in near-field interferometry
We discuss a novel application of matter wave interferometry to characterize the scalar optical polarizability of molecules at 532 nm. The interferometer presented here consists of two material absorptive gratings and one central optical phase grating. The interaction of the molecules with the standing light wave is determined by the optical dipole force and is therefore directly dependent on the molecular polarizability at the wavelength of the diffracting laser light. By comparing the observed matter-wave interference contrast with a theoretical model for several intensities of the standing light wave and molecular velocities, we can infer the polarizability in this first proof-of-principle experiment for the fullerenes C60 and C70, and we find a good agreement with literature values.
0946-2171
469-473
Hackermüller, L.
01fbc878-fd24-4739-9b30-384fad4c74a3
Hornberger, K.
fb6fa295-3107-4ddb-945a-65a985b5a1bb
Gerlich, S.
161bf6be-744f-429a-b142-7348eb7797e4
Gring, M.
9a7dd881-87a2-4120-aa45-4b5c5e94e3e9
Ulbricht, H.
5060dd43-2dc1-47f8-9339-c1a26719527d
Arndt, M.
f067d0c0-4c85-4d6a-8d57-6c11d9fb27a8
Hackermüller, L.
01fbc878-fd24-4739-9b30-384fad4c74a3
Hornberger, K.
fb6fa295-3107-4ddb-945a-65a985b5a1bb
Gerlich, S.
161bf6be-744f-429a-b142-7348eb7797e4
Gring, M.
9a7dd881-87a2-4120-aa45-4b5c5e94e3e9
Ulbricht, H.
5060dd43-2dc1-47f8-9339-c1a26719527d
Arndt, M.
f067d0c0-4c85-4d6a-8d57-6c11d9fb27a8

Hackermüller, L., Hornberger, K., Gerlich, S., Gring, M., Ulbricht, H. and Arndt, M. (2007) Optical polarizabilities of large molecules measured in near-field interferometry. Applied Physics B: Lasers and Optics, 89 (4), 469-473. (doi:10.1007/s00340-007-2873-6).

Record type: Article

Abstract

We discuss a novel application of matter wave interferometry to characterize the scalar optical polarizability of molecules at 532 nm. The interferometer presented here consists of two material absorptive gratings and one central optical phase grating. The interaction of the molecules with the standing light wave is determined by the optical dipole force and is therefore directly dependent on the molecular polarizability at the wavelength of the diffracting laser light. By comparing the observed matter-wave interference contrast with a theoretical model for several intensities of the standing light wave and molecular velocities, we can infer the polarizability in this first proof-of-principle experiment for the fullerenes C60 and C70, and we find a good agreement with literature values.

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Published date: December 2007

Identifiers

Local EPrints ID: 144291
URI: http://eprints.soton.ac.uk/id/eprint/144291
ISSN: 0946-2171
PURE UUID: 0bb94f5c-0060-4737-8174-da498c0c2f4a
ORCID for H. Ulbricht: ORCID iD orcid.org/0000-0003-0356-0065

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Date deposited: 03 Jun 2010 13:44
Last modified: 14 Mar 2024 02:54

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Contributors

Author: L. Hackermüller
Author: K. Hornberger
Author: S. Gerlich
Author: M. Gring
Author: H. Ulbricht ORCID iD
Author: M. Arndt

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