Quantum Plasmonics: Energy Transport Through Plasmonic Gap

Abstract

scanning tunneling microscopy (STM), [5,6] atomic force microscopy (AFM), [7] and other techniques allowing resolution to be reduced to the atomic scale can help realize atomic-scale world exploration. This is the starting point of the nanotechnology era; since its inception, this technology has changed the nature of almost every human-made object. Six decades after Richard Feynman's lecture, we find that there is still plenty of room at the bottom, through the incorporation of nanophotonics. [8] To elucidate: quantum plasmonics has emerged as an attractive research field in new nanophotonics; research is underway to reveal and accurately describe the quantum nature of electrons at the bottom of extremely confined nano-or sub-nanometer scale materials, using light. [9,10] By exploring the quantum mechanical interactions of matter with light (in particular, using the coherent interactions between the plasmonic cavity and the material), [11][12][13][14][15][16][17][18] these efforts seek to establish new frontiers in information processing technology and to satisfy the everincreasing requirements for speed and capacity in quantum computing, quantum cryptography, and quantum metrology. They might also suggest research fields beyond this, involving the ultimate miniaturization of photonic components and the extreme limits of the light-matter interaction. These advantages may help solve some fundamental problems of electronics, such as those of bandwidth, frequency, and energy consumption. [19] In this review, we describe recent developments in the research of exotic materials capable of mediating quantum plasmonics and inducing quantum energy transport. We briefly provide classical and quantum descriptions of matter, from the bulk, nano, and cluster scales down to atomic matter, exploring the band structures via their optical responses. By considering a single nanoplasmonic material, we describe the theoretical and experimental findings pertaining to assembled nanoplasmonic structures, in the context of the plasmonic gap distance and the type of advanced functional material. The plasmonic gap herein refers to a nanometer or sub-nanometer gap that transports (couples, tunnels, exchanges, confines) electromagnetic energy between plasmonic resonators. Advanced functional materials within an extremely confined metallic resonator are described; these include air/vacuum, aliphatic and conjugated molecules, 2D materials, organic and inorganic materials with At the interfaces of metal and dielectric materials, strong light-matter interactions excite surface plasmons; this allows electromagnetic field confinement and enhancement on the sub-wavelength scale. Such phenomena have attracted considerable interest in the field of exotic material-based nanophotonic research, with potential applications including nonlinear spectroscopies, information processing, single-molecule sensing, organic-molecule devices, and plasmon chemistry. These innovative plasmonics-based technologies can meet the ever-increasing demands for speed and ca...

Confined Assembly of Colloidal Nanorod Superstructures by Locally Controlling Free‐Volume Entropy in Nonequilibrium Fluids

“…Nanoparticles possess unique surface functional activity, the quantum size effect, and quantum tunneling effect, [1][2][3][4][5][6][7] thus attracting much attention in the fields of magnetic storage, solar cells, display, and efficient catalysis. [8][9][10][11][12][13][14][15][16][17][18] Compared with disordered thin films, long-range-ordered nanoparticle structures have introduced exotic properties, such as delocalization and band-like transport of electrons, coupled plasmonic resonance, collective excitonic emissions, yielding device implementations toward high-mobility field-effect transistors, near-field nanoimaging, coherent quantum sources.…”

Femtosecond Laser Direct‐Write Plasmonic Nanolithography in Dielectrics

“…Noble metallic (e.g., silver or gold) nanostructures exhibit extraordinary optical properties due to their surface plasmon resonance excited by electromagnetic waves. [1][2][3][4][5] Localized surface plasmon resonance (LSPR) of metallic nanoparticles (NPs)-quantized conduction band electron collective oscillations confined to the nanoscale-with highly localized nearfields is widely used in surface-enhanced Raman scattering (SERS), [6][7][8] biochemical sensing and detection by surface-enhanced IR absorption (SEIRAS), [9] miniaturized optical devices, [10,11] and data storage. [12,13] In intricate nanostructures, e.g., periodic arrays of NPs, the coupling between adjacent NPs provides wavelength-shifted (red/blueshifted) plasmon resonance modes for subwavelength devices in comparison to isolated individual NPs due to coupling.…”

Эффекты Переключения В Плазмонных Схемах На Основе Тонких Металлических Пленок И Наноструктур С Повышенной Фотопроводимостью

“…Управление сигналами на оптических частотах привлекает особое внимание исследователей в последнее время в связи с появлением технологий для изготовления наноразмерных элементов плазмонных микросхем [1][2][3][4][5][6][7][8][9][10][11]. Элементы таких микросхем имеют размеры в несколько раз меньшие, чем длины волн сигналов с оптическими частотами.…”