Document Type

Journal Article

Department/Unit

Department of Physics

Abstract

We measure the force exerted by microwave radiation on a centimeter-sized parallel-plate metallic resonant unit. By varying the ambient environment, we distinguish carefully between the direct radiation force and the indirect photothermal component. At the microwave resonance, the former is measured quantitatively to be 100 times larger than the conventional radiation force. Furthermore, the enhanced radiation force tends to increase the separation of the plates. Both the direction and the magnitude of the measured force agree well with numerical calculations.

Publication Year

2014

Journal Title

Physical Review Letters

Volume number

112

Publisher

American Physical Society

First Page (page number)

045504-1

Last Page (page number)

045504-5

Referreed

1

Funder

This work is supported by Grants No. HKUST2/CRF/11G and No. AoE/P-02/12 from the Research Grants Council of Hong Kong SAR. Z. H. H. is also supported by the NSFC (Grant No. 11304215) and the NSF of Jiangsu Province (Grant No. BK20130281).

DOI

10.1103/PhysRevLett.112.045504

ISSN (print)

00319007

Link to Publisher’s Edition

http://dx.doi.org/10.1103/PhysRevLett.112.045504

Copyright

© 2014 American Physical Society

ISSN (electronic)

10797114

Included in

Physics Commons

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