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Research areas of the author include fundamentals of nanophotonics, optical nanostructures, optical fibers, and micro- and nanophotonic devices. Du kanske gillar. Inbunden Engelska, Spara som favorit. Meanwhile, commercialization of products based on advancements in nanoscale technologies began emerging; these products are limited to bulk applications of nanomaterials and do not involve atomic control of matter. Some examples include the Silver Nano platform for using silver nanoparticles as an antibacterial agent, nanoparticle-based transparent sunscreens, carbon fiber strengthening using silica nanoparticles, carbon nanotubes for stain-resistant textiles.
From Wikipedia, the free encyclopedia. This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. This section needs expansion. You can help by adding to it. September Optics Express. Bibcode : OExpr.. Bibcode : Natur. Journal of the Optical Society of America B. Laser Physics Letters. Bibcode : LaPhL University of Southampton. Archived from the original on Optics Letters. Bibcode : OptL Applied Physics B. New Journal of Physics.
Bibcode : NJPh Bibcode : PhRvL. Physical Review A.
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Fiber crew installing a count fiber cable underneath the streets of Midtown Manhattan, New York City. Nanofibers can be generated from different polymers and hence have different physical properties and application potentials. Example of a cellulose nanofiber network. Collagen fibers in a cross-sectional area of dense connective tissue. Bone matrix composed of collagen fibrils. Nanofiber scaffolds are able to mimic such structure.
In a broader aspect, our study of optical force density distribution within micro and nano optical structures would bring in-depth physical insights and pictures about mechanical influences when light transports in these complicated structures and devices. Ultra-flattened and low dispersion in engineered microfibers with highly efficient nonlinearity reduction. Advances in Optics and Photonics ; Express 14 20 , Optics of tunneling from adiabatic nanotapers. Citing articles from OSA journals and other participating publishers are listed here. Spillane et al.
Paints and protective coatings on furniture contain volatile organic compounds such as toluene and formaldehyde. Microfiber cloth suitable for cleaning sensitive surfaces. Microfiber cloth for cleaning screens and lenses. Nanoparticles are particles between 1 and nanometres in size with a surrounding interfacial layer.
The interfacial layer is an integral part of nanoscale matter, fundamentally affecting all of its properties. TEM a, b, and c images of prepared mesoporous silica nanoparticles with mean outer diameter: a 20nm, b 45nm, and c 80nm. SEM d image corresponding to b.
The insets are a high magnification of mesoporous silica particle. Nanostars of vanadium IV oxide. Image of reconstruction on a clean Gold surface, as visualized using scanning tunneling microscopy. The positions of the individual atoms composing the surface are visible. Graphical representation of a rotaxane , useful as a molecular switch. This device transfers energy from nano-thin layers of quantum well s to nanocrystal s above them, causing the nanocrystals to emit visible light. Dust are fine particles of solid matter.
It generally consists of particles in the atmosphere that come from various sources such as soil, dust lifted by wind, volcanic eruptions, and pollution. Three years of use without cleaning has caused this laptop heat sink to become clogged with dust, and it can no longer be used as it may overheat.
Large dust storm over Libya. Photonics is the physical science of light generation, detection, and manipulation through emission, transmission, modulation, signal processing, switching, amplification, and sensing. Dispersion of light photons by a prism. A sea mouse Aphrodita aculeata , showing colorful spines, a remarkable example of photonic engineering by a living organism. Example of waveguides and a diplexer in an air traffic control radar.
A section of flexible waveguide with a pressurizable flange. A nanowire is a nanostructure, with the diameter of the order of a nanometer.
It can also be defined as the ratio of the length to width being greater than An SEM image of epitaxial nanowire heterostructures grown from catalytic gold nanoparticles. An SEM image of a 15 micrometer nickel wire. The image is also accompanied by a simulation of the crystal structure. Total internal reflection. Top to bottom: representation of a refracted incident wave and an evanescent wave at an interface. Schematic representation of a surface wave propagating along a metal-dielectric interface. The fields away from the surface die off exponentially right hand graph and those fields are thus described as evanescent in the z direction.
This results in a low-pressure environment within the chamber, commonly referred to as a vacuum.
A small vacuum chamber for studio or lab use in de-airing materials such as mold rubbers and resins. Vacuum chamber for testing leaks in packaging. Double-clad fiber is a class of optical fiber with a structure consisting of three layers of optical material instead of the usual two. The inner-most layer is called the core.
It is surrounded by the inner cladding, which is surrounded by the outer cladding.
Refractive index profile of dispersion-compensating double-clad fiber. Stripping is the act of removing the protective polymer coating around optical fiber in preparation for fusion splicing. Zodiacal light is a faint, diffuse glow visible in the night sky. The phenomenon stems from the scattering of sunlight by interplanetary dust spread throughout the plane of the Solar System.
A Harper's Weekly illustration showing Confederate troops escorting captured African American civilians south into slavery. En route to Gettysburg, the Army of Northern Virginia kidnapped approximately 40 black civilians and sent them south into slavery. The Indian Head gold pieces or Pratt-Bigelow gold coins were two separate coin series, identical in design, struck by the United States Mint: a two-and-a-half-dollar piece, or quarter eagle, and a five-dollar coin, or half eagle.
The Indian Head eagle , designed by Saint-Gaudens, was the basis for the designs for the smaller gold pieces. Examples of the Indian Head gold pieces grouped with modern coins for size comparison purposes. Saint-Gaudens' double eagle design, which the Mint hoped to modify for the smaller gold coins. Mint Director Frank A. Leach thought well of the new coins despite the controversy. BMW headquarters in Munich. Athens is the capital and largest city of Greece. Theseus was responsible, according to the myth, for the synoikismos "dwelling together" βthe political unification of Attica under Athens.
The Victoria and Albert Museum in London is the world's largest museum of applied and decorative arts and design, as well as sculpture, housing a permanent collection of over 2. Entrance to the Victoria and Albert Museum. Henry Cole , the museum's first director. Frieze detail from internal courtyard showing Queen Victoria in front of the Great Exhibition.
He succeeded his cousin and father-in-law Louis XII, who died without a son. Portrait by Jean Clouet , c. Francis I receiving the last breath of Leonardo da Vinci in , by Ingres , painted in The Prado Museum is the main Spanish national art museum, located in central Madrid. Francisco Goya, La maja desnuda , oil on canvas, circa β Francisco Goya, La maja vestida , oil on canvas, circa β Since , the Swiss Confederation has been a federal state of relatively autonomous cantons, some of which have a history of confederacy that goes back more than years, putting them among the world's oldest surviving republics.
Divico and Julius Caesar after the Battle of Bibracte. Leonhard Euler β83 , one of the most prominent scientists in the Age of Enlightenment.