Abstract
Surface plasmons have been attracting increasing attention and have been studied extensively in recent decades because of their half-light and half-material polarized properties. On the one hand, the tightly confined surface plasmonic mode may reduce the size of integrated optical devices beyond the diffraction limit; on the other hand, it provides an approach toward enhancement of the interactions between light and matter. In recent experiments, researchers have realized promising applications for surface plasmons in quantum information processing, ultra-low-power lasers, and micro-nano processing devices by using plasmonic structures, which have demonstrated their superiority over traditional optics structures. In this paper, we introduce the theoretical principle of surface plasmons and review the research work related to the interactions between plasmons and excitons. Some perspectives with regard to the future development of plasmonic coupling are also outlined.
Highlights
Nanoscience [1] and nanotechnology [2,3] are recent revolutionary developments of science that are evolving at a very fast pace
Surface plasmons can achieve local sub-wavelength confinement of light fields and have a strong electromagnetic field enhancement effect within the local range of this ultra-diffraction limit. This enables nano-optical devices based on surface plasmons to control the transmission and processing of optical information at nanometer scales that are shorter than the operating wavelength, providing a powerful platform for the development of smaller and faster nano-optical devices that can be integrated with all-optical integration
This paper has reviewed the research progress in this field based on the coupling effects of surface plasmons and excitons and the strong coupling between conductive surfaces, localized surfaces, metal periodic structures, and transition metal dichalcogenides
Summary
Nanoscience [1] and nanotechnology [2,3] are recent revolutionary developments of science that are evolving at a very fast pace. With different aspects of each coupling principle, especially in nanogaps, nanoparticles, and periodic gratings, these nanostructures can lead to a new class of plasmonic nanostructures and open extraordinary potentials for diverse applications, such as detection of the biological analyte, preparation of novel two-dimensional plasmonic polaritonic devices, etc It is largely explored in the research into atomic physics [27] and solid-state systems, the interaction between light and matter is one of the most important aspects of modern optical technology and plays an important role in microcavity quantum dynamics [28]. Starting from the basic principles, we focus here on the development of surface plasmon and exciton coupling technology in recent years, and the future trends of strong coupling between light and matter are discussed
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