Transformation plasmonics
Optical Yagi-Uda nanoantennas
Conventional antennas, which are widely employed to transmit radio and TV signals, can be used at optical frequencies as long as they are shrunk to nanometer-size dimensions. Optical nanoantennas made of metallic or high-permittivity dielectric nanoparticles …
Progress on one-dimensional zinc oxide nanomaterials based photonic devices
One-dimensional nanostructures hold the most attractive and excellent physiochemical characteristics which exhibit the paramount influence on the fundamental and technological nanoelectronic as well as nanophotonic applications. In this review article, we …
Low loss hollow-core waveguide on a silicon substrate
How small can “Nano” be in a “Nanolaser”?
We show that the lasing threshold of the single mode metal-semiconductor nano-laser (spaser) is determined only by the photon absorption rate in the metal and exhibits very weak dependence on the composition, shape, size (as long as it is less than …
Editorial
Since the advent of room temperature laser diodes and low loss optical fibers, photonics research, driven by the rational design of optical confinement and heterogeneous material structures, as well as by the ever expanding use of quantum effects and of …
Routing and photodetection in subwavelength plasmonic slot waveguides
The ability to manipulate light at deeply sub-wavelength scales opens a broad range of research possibilities and practical applications. In this paper, we go beyond recent demonstrations of active photonic devices coupled to planar plasmonic waveguides and …
Ultra-compact silicon nanophotonic modulator with broadband response
Electro-optic modulators have been identified as the key drivers for optical communication and signal processing. With an ongoing miniaturization of photonic circuitries, an outstanding aim is to demonstrate an on-chip, ultra-compact, electro-optic modulator …
Nanostructure designs for effective solar-to-hydrogen conversion
Conversion of energy from photons in sunlight to hydrogen through solar splitting of water is an important technology. The rising significance of producing hydrogen from solar light viawater splitting has motivated a surge of developing semiconductor …
Dressed photon technology
This paper reviews the theoretical picture of dressed photons used to describe the electromagnetic interactions between nanometric particles located in close proximity to each other. The coupling between a dressed photon and multi-mode coherent phonons is …
Optical tuning and ultrafast dynamics of high-temperature superconducting terahertz metamaterials
Through the integration of semiconductors or complex oxides into metal resonators, tunable metamaterials have been achieved by a change of environment using an external stimulus. Metals provide high conductivity to realize a strong resonant response in …