Circular polarization dissymmetry of two-photon-induced photoluminescence from chiral plasmonic nanostructured metasurfaces

Khai Q. Le; Hiromi Okamoto

doi:10.1117/12.2319284

24 April 2018 Circular polarization dissymmetry of two-photon-induced photoluminescence from chiral plasmonic nanostructured metasurfaces

Khai Q. Le, Hiromi Okamoto

Author Affiliations +

Proceedings Volume 10712, Optical Manipulation Conference; 1071214 (2018) https://doi.org/10.1117/12.2319284
Event: SPIE Structured Light, 2018, Yokohama, Japan

Abstract

Chiral nanostructures exhibiting circular dichroism (CD) activities absorb different amounts of left- (LCP) and righthanded circularly polarized (RCP) light. Here, we report the observation of dissymmetry between two-photon-induced LCP and RCP photoluminescence (TPIPL) from two-dimensional (2D) chiral plasmonic nanostructures. Under linearly polarized ultrashort pulse irradiation with a low input power of 3 mW, the excited multipolar responses of the 2D chiral nanostructure yield circularly polarized TPIPL. The handedness of the circularly polarized TPIPL was dependent on the handedness of the chiral nanostructure. The chiral nature of TPIPL may find potential applications in sensing of chiral molecules and materials.

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Khai Q. Le and Hiromi Okamoto "Circular polarization dissymmetry of two-photon-induced photoluminescence from chiral plasmonic nanostructured metasurfaces", Proc. SPIE 10712, Optical Manipulation Conference, 1071214 (24 April 2018); https://doi.org/10.1117/12.2319284

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