Lateral chirality-sorting optical forces
Balthasar, J. P. Mueller
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CitationHayat, Amaury, J. P. Balthasar Mueller, and Federico Capasso. 2015. “Lateral Chirality-Sorting Optical Forces.” Proceedings of the National Academy of Sciences 112 (43): 13190–94. https://doi.org/10.1073/pnas.1516704112.
AbstractThe transverse component of the spin angular momentum of evanescent waves gives rise to lateral optical forces on chiral particles, which have the unusual property of acting in a direction in which there is neither a field gradient nor wave propagation. Because their direction and strength depends on the chiral polarizability of the particle, they act as chirality-sorting and may offer a mechanism for passive chirality spectroscopy. The absolute strength of the forces also substantially exceeds that of other recently predicted sideways optical forces.
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