Highly Localized Surface Plasmon Nanolasers via Strong Coupling

Abstract

Surface plasmons have robust and strong confinement to the light field which is beneficial for the light−matter interaction. Surface plasmon amplification by stimulated emission of radiation (SPACER) has the potential to be integrated on the semiconductor chip as a compact coherent light source, which can play an important role in further extension of Moore's law. In this study, we demonstrate the localized surface plasmon lasing at room temperature in the communication band using metallic nanoholes as the plasmonic nanocavity and InP nanowires as the gain medium. Optimizing laser performance has been demonstrated by coupling between two metallic nanoholes which adds another degree of freedom for manipulating the lasing properties. Our plasmonic nanolasers exhibit lower power consumption, smaller mode volumes, and higher spontaneous emission coupling factors due to enhanced light−matter interactions, which are very promising in the applications of high-density sensing and photonic integrated circuits.

Surface Plasmon Based Optical Data storage Devices using Graphene Nanoholes

“…We created arrays of nanoholes on a graphene sheet with various numbers, sizes, and shapes to explore the plasmonic response of these structures. Surface plasmons exhibit robust and powerful con nement to the light eld, which is advantageous for the interaction between light and matter.Coupled between two metallic nanoholes, which adds an additional degree of freedom for adjusting the light coupling qualities, has been used to demonstrate how to improve laser performance (Liao et al, 2023). The graphical depiction of the simulation structure is shown in Fig.…”

Synthesis of Self-Supporting Gold Microplates on Soft Substrates through Infiltration Growth Mechanism

“…Atomically flat structures, large surface areas with nanometer-scale thickness, and high-quality crystallography are the key characteristics of the Au MPs. They have demonstrated excellence in various fields, such as plasmonic nanocircuitry, − plasmonic nanocavities, − single-molecule optomechanics, − and dynamic Casimir optical cavities. − Various methods have been developed for colloidal synthesis of 2D metal MPs, with the most common strategies involving the use of polymer surfactants and halide ions as capping agents to direct the anisotropic growth. − However, colloidal synthesis methods often introduce imperfections, primarily stemming from plate aggregation, bending, and contamination by small particles. In contrast, Au MPs grown directly on substrates can exhibit significantly higher quality by circumventing the imperfections associated with solution-phase synthesis.…”

A Tunable Fano Resonator with High Sensitivity Based on Black Phosphorus in the Terahertz Band

“…Surface plasmon polaritons (SPPs) with a strong local field enhancement capability can confine energy in the nanometer range and achieve a breakthrough in optical diffraction limit, thereby further manipulating and transmitting light in subwavelength range. [8,9] To advance the THz technology, it is crucial to have highperformance waveguide devices that meet the demands of the industry. Metal-insulator-metal (MIM) is a widely employed surface plasmon waveguide architecture known for its low intrinsic loss.…”