BRASSELET, Etienne

doi:10.1117/1.AP.5.3.034003

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BRASSELET, Etienne
Laboratoire Ondes et Matière d'Aquitaine [LOMA]

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Advanced photonics. 2023-06-30, vol. 5, n° 03

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The optical angular momentum is ubiquitous to the science of light, especially whenever the polarization state and the spatial distribution of the phase are involved, which are most often associated with the spin and orbital parts of the total angular momentum, respectively. Notably, the independent introduction of these two contributions to the total optical angular momentum was accompanied by suggestions regarding the possible detection of their mechanical effects using a torsion pendulum. Today, the classical and quantum mechanical aspects of spin and orbital angular momentum of light and their mutual coupling remain active research topics offering exciting perspectives for photonic technologies. Our brief historical overview shows how the torsion pendulum has accompanied scientific advances on mechanical effects based on the angular degrees of freedom of light since Beth's pioneering contribution published in 1935.< Réduire

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Torsion pendulum driven by the angular momentum of light: Beth’s legacy continues

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