Direct observation of a photon spin-induced constant acceleration in macroscopic systems

The use of a spider silk allows the direct observation of the dynamics induced by the transfer of angular momentum of laser light in a Beth-type experiment. In the optical domain, a uniform angular acceleration of a macroscopic object is demonstrated in agreement with the expected equation of motion...

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Veröffentlicht in:Applied physics letters 2005-02, Vol.86 (8)
Hauptverfasser: Delannoy, G., Emile, O., Le Floch, A.
Format: Artikel
Sprache:eng
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Zusammenfassung:The use of a spider silk allows the direct observation of the dynamics induced by the transfer of angular momentum of laser light in a Beth-type experiment. In the optical domain, a uniform angular acceleration of a macroscopic object is demonstrated in agreement with the expected equation of motion. The intrinsic angular momentum exerts a stable torque thats modulus can be continuously adjusted from 0to10−12Nm by changing the optical power. Moreover, a macroscopic no-node mirror is proposed to improve the optical angular momentum transfer in micro-manipulation in the context of optical tweezers.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.1869539