Author(s): A. A. Zyablovsky, E. S. Andrianov, I. A. Nechepurenko, A. V. Dorofeenko, A. A. Pukhov, and A. P. VinogradovSolving the challenging problem of the amplification and generation of an electromagnetic field in nanostructures enables us to implement many properties of the electromagnetic field at the nanoscale in practical applications. A first-principles...

Author(s): Weimin Ye, Xiaodong Yuan, Chucai Guo, Jianfa Zhang, Biao Yang, and Shuang ZhangChiroptical effects, characterized by different optical responses for light with left- and right-handed polarizations, are extremely weak in natural materials. Strong effects have been limited to complex three-dimensional metamaterials, but now the authors find...

Author(s): Weijie Luo, Shulin Sun, He-Xiu Xu, Qiong He, and Lei ZhouDevices for manipulating spin-polarized light in transmission (not reflection) mode are highly desired in photonics research. To this end, the authors craft a Pancharatnam-Berry metasurface of subwavelength thickness λ/8 with a 91% efficient photonic spin Hall effect, at microwave frequencies....

Author(s): Zhuo Li, Liangliang Liu, Hengyi Sun, Yunhe Sun, Changqing Gu, Xinlei Chen, Yun Liu, and Yu LuoTraditional plasmons in a metal enable light to be focused beyond the diffraction limit, but the large dissipative losses at optical frequencies seriously limit practical applications. Taking advantage of the structural dispersion of waveguide modes...

Author(s): R. Guo, T. K. Hakala, and P. TörmäPlasmonic nanoarrays which support collective surface lattice resonances (SLRs) have become an exciting frontier in plasmonics. Compared with the localized surface-plasmon resonance in individual particles, these collective modes have appealing advantages such as angle-dependent dispersions and much… [Phys....

Author(s): Tamitake Itoh, Yuko S. Yamamoto, Yasutaka Kitahama, and Jeyadevan BalachandranHotspots of surface-enhanced resonance Raman scattering (SERRS) are localized within 1 nm at gaps or crevices of plasmonic nanoparticle dimers. We demonstrate SERRS hotspots with volumes that are extended in one dimension tens of thousand times compared to standard...