1,246 research outputs found
Atoms of None of the Elements Ionize While Atoms of Inert Behavior Split by Photonic Current
As studied, atoms deal with the positive or negative charge by losing or
gaining an electron. However, the gaseous and solid atoms can execute
interstate electron dynamics. They can also deal with transition states. Solid
atoms can elongate from the east-west poles at the ground surface level. Under
suitable energy, solid atoms can expand, and gaseous atoms can contract. When
the excessive field is intact, flowing inert gas atoms can split. The splitting
inert gas atoms convert into electron streams. Those electron streams carrying
the photons when impinging on the naturally-elongated solid atoms, further
elongation of the atoms takes place. If not, elongated atoms at least deform.
Gaseous atoms can squeeze by the suffering of their lattices. Such behaviors of
the atoms validate that they cannot ionize. On splitting the flowing inert gas
atoms, characteristics of the photons become apparent. Those photons that are
not carried by the electron streams can enter the air medium directly. On
traveling photons in the air medium, their energy dissipates in heat, and their
force confines in the form of a field. On confinement of the field of traveling
photons with the field of air-medium, a glow of light is appeared, which is
better known in plasma. The splitting of inert gas atoms, the carrying of
photons by the electron streams, and the lighting of traveling photons validate
that an electric current is photonic. In various microscopes, the magnification
of an image is based on the resolving power of photons. Photonic current is due
to the propagation of the photons in the structure of the interstate electron
gap. Some well-known principles are also discussed, validating that an electric
current is a photonic current. Indeed, this study brings about profound changes
in science
Nanoantenna-Microcavity Hybrids with Highly Cooperative Plasmonic-Photonic Coupling
Nanoantennas offer the ultimate spatial control over light by concentrating
optical energy well below the diffraction limit, whereas their quality factor
(Q) is constrained by large radiative and dissipative losses. Dielectric
microcavities, on the other hand, are capable of generating a high Q-factor
through an extended photon storage time but have a diffraction-limited optical
mode volume. Here we bridge the two worlds, by studying an exemplary hybrid
system integrating plasmonic gold nanorods acting as nanoantennas with an
on-resonance dielectric photonic crystal (PC) slab acting as a low-loss
microcavity and, more importantly, by synergistically combining their
advantages to produce a much stronger local field enhancement than that of the
separate entities. To achieve this synergy between the two polar opposite types
of nanophotonic resonant elements, we show that it is crucial to coordinate
both the dissipative loss of the nanoantenna and the Q-factor of the low-loss
cavity. In comparison to the antenna-cavity coupling approach using a
Fabry-Perot resonator, which has proved successful for resonant amplification
of the antenna's local field intensity, we theoretically and experimentally
show that coupling to a modest-Q PC guided resonance can produce a greater
amplification by at least an order of magnitude. The synergistic
nanoantenna-microcavity hybrid strategy opens new opportunities for further
enhancing nanoscale light-matter interactions to benefit numerous areas such as
nonlinear optics, nanolasers, plasmonic hot carrier technology, and
surface-enhanced Raman and infrared absorption spectroscopies.Comment: Revised version after acceptanc
Compact and low power consumption tunable photonic crystal nanobeam cavity
A proof-of-concept for a new and entirely CMOS compatible tunable nanobeam cavity is demonstrated in this paper. Preliminary results show that a compact nanobeam cavity (~20 ÎĽm^2) with high Q-factor (~50,000) and integrated with a micro-heater atop, is able of tuning the resonant wavelength up to 15 nm with low power consumption (0.35nm/mW), and of attaining high modulation depth with only ~100 ÎĽW. Additionally, a tunable bi-stable behavior is reported
Harnessing optical micro-combs for microwave photonics
In the past decade, optical frequency combs generated by high-Q
micro-resonators, or micro-combs, which feature compact device footprints, high
energy efficiency, and high-repetition-rates in broad optical bandwidths, have
led to a revolution in a wide range of fields including metrology, mode-locked
lasers, telecommunications, RF photonics, spectroscopy, sensing, and quantum
optics. Among these, an application that has attracted great interest is the
use of micro-combs for RF photonics, where they offer enhanced functionalities
as well as reduced size and power consumption over other approaches. This
article reviews the recent advances in this emerging field. We provide an
overview of the main achievements that have been obtained to date, and
highlight the strong potential of micro-combs for RF photonics applications. We
also discuss some of the open challenges and limitations that need to be met
for practical applications.Comment: 32 Pages, 13 Figures, 172 Reference
- …