Few Percent Efficient Polarization-Sensitive Conversion in Nonlinear Plasmonic Interactions Inside Oligomeric Gold Structures. - Nikolay Busleev; Sergey I. Kudryashov; Irina Saraeva; Pavel V. Danilov; Andrey Rudenko; Dmitriy Zayarny; Stefan A. Maier; Pham Hong Minh; Andrey Ionin (Sensors, 2021)