In photonic structures, the rotational sense of the electric field, i.e., the light's polarization, depend on the propagation direction.
«As soon as light
in a photonic structure travels in the opposite direction, the electric field rotates the other way around and the spin flips,» states Rauschenbeutel.
Not exact matches
Creating light
in small
structures on the surface of a chip is crucial for developing fully integrated «
photonic» circuits that do with light what is now done with electric currents
in semiconductor integrated circuits.
«Our approach offers remarkable flexibility
in transforming 2 - D
structures, including those found
in the most advanced forms of electronics and
photonics, into 3 - D
structures,» said Rogers, a longtime collaborator of Huang's.
Concentrating light
in compact
structures is important for advancing
photonics.
A robust micrometer - scale
structure for trapping light enhances optical interactions
in advanced
photonic devices.
But the challenge remains to make the
photonic structures large and thick enough to serve
in computer chips and microlasers, he says.
Researchers have attempted to build practical «
photonic band gap
structures» since the idea was first proposed
in 1987 by Eli Yablonovitch, now a professor at the University of California at Los Angeles.
In this case, Lu was able to calculate precise measurements for the construction of a
photonic crystal predicted to produce the manifestation of Weyl points — with dimensions and precise angles between arrays of holes drilled through the material, a configuration known as a gyroid
structure.
The insects owe their brilliant looks to
photonic nanostructures — crystalline
structures in their wings that reflect light and repeat on the order of every few nanometers — and now scientists think that they have figured out how these
structures create such vivid colors.
The team of engineers with expertise
in optics,
photonics, and thermal engineering developed a hybrid
structure of silicon and vanadium dioxide with a conical design to better control the radiation from the body of the satellite.
The authors use the opportunities provided by nano - engineered dielectrics, the so - called
Photonic Crystals, to study both how to trap the atoms closer to each other and make them interact through the guided modes
in the
structure.
«We have presented a remarkably simple route to 3D that starts with planar precursor
structures formed
in nearly any type of material, including the most advanced ones used
in photonics and electronics.
Among experts, however, it was already known that light behaves differently when it is confined strongly
in the transversal plane using so - called «
photonic structures.»
The functionalized carbon nanotubes have significant prospects for further development, Doorn noted, including advances
in functionalization chemistry; integration into
photonic, plasmonic and metamaterials
structures for further control of quantum emission properties; and implementation into electrically driven devices and optical circuitry for diverse applications.
Also waveguides based on so - called «
photonic crystals» (two - dimensional
structures with periodically arranged holes) can confine light
in this way.
Such
structures are also found
in nature (for example,
in green - winged teal feathers and
in some butterfly wings) and are known as
photonic crystals.