Sentences with phrase «photonic waveguides»

«However, in narrow photonic waveguides, the electric field of the light resembles the rotor of a helicopter,» explains Arno Rauschenbeutel from the Vienna Center for Quantum Science and Technology at the Institute of Atomic and Subatomic Physics of TU Wien, Austria.

Normally, the photons are transmitted in both directions in the photonic waveguide, but in their custom - made photonic chip they could break this symmetry and get the quantum dot to differentiate between emitting a photon right or left, that means emit directional photons.

Photons are usually emitted in all directions, but the photonic chip is designed so that all the photons are sent out through a photonic waveguide,» explains Peter Lodahl, professor and head of the Quantum Photonics research group at the Niels Bohr Institute, University of Copenhagen.

Not exact matches

They're also working on designing epitaxial waveguides and other photonic components, Norman said.

The Sandia photonic lattice's turning radius is currently in the one - wavelength range, rather than the traditional waveguide bend of more than 10 wavelengths.

Carbon nanotube above a photonic crystal waveguide with electrodes.

It can couple to silicon waveguides to interface with standard integrated photonic components and chips.

«Integrated photonic circuits are hampered by weak and inefficient optical energy confinement in standard silicon waveguides,» said Yang Li, a postdoctoral fellow in the Mazur Group and first author on the paper.

Now, SEAS researchers have pushed that technology further — developing a zero - index waveguide compatible with current silicon photonic technologies.

The team wanted to develop a device that could plug directly into existing photonic circuits and for that, the most useful shape is a straight wire or waveguide.

Their co-authors around Peter Lodahl from the Niels Bohr Institute in Copenhagen, on the other hand, use waveguides based on photonic crystals.

Also waveguides based on so - called «photonic crystals» (two - dimensional structures with periodically arranged holes) can confine light in this way.

In a special dispersion engineered photonic crystal waveguide a pump light pulse of duration of only six trillionths of a second chases a second slower signal light pulse.