Results 251 to 260 of about 267,241 (294)

Photon transport transistor

International Technical Digest on Electron Devices Meeting, 2003
A novel optoelectronic device is presented which consists of a light-emitting diode (LED) on top of a photodiode, with very tight optical coupling. The device is similar to a bipolar transistor except that photons rather than minority carriers are transported through the base. Devices fabricated with the GaAs-AlGaAs material system yield a current gain
B.J. Van Zeghbroeck, C. Harder, H.P. Meier, W. Walter   +3 more
openaire   +1 more source

Disorder-Enhanced Transport in Photonic Quasicrystals

Science, 2011
Optical interference in a photorefractive crystal is used to study light propagation in a controlled disordered system.
L. Levi, M. Rechtsman, B. Freedman, T. Schwartz, O. Manela, M. Segev   +5 more
openaire   +2 more sources

Polarized photon transport through fog

Laser Communication and Propagation through the Atmosphere and Oceans VI, 2017
Anyone who has driven through fog understands the detrimental effect scattering can have on your ability to see. When light interacts with a scattering center, in this case a fog droplet, it is scattered into a new direction, ultimately turning the world around you into a dull gray haze. In some fogs, visibility can be less than 100 meters. It would be
Christopher M. Persons, Kirk A. Fuller, Greg A. Finney, James H. Kirkland, Robert Desilva, Jonathan Farmer, Brett H. Hokr   +6 more
openaire   +1 more source

Vectorized Monte Carlo photon transport

Parallel Computing, 1984
A fully vectorized algorithm for Monte Carlo X-photon transport applied to the CRAY computer is described. Computational details and an entire discussion are given. The superiority of this approach in comparison with a previously existing single-particle algorithm is clearly demonstrated.
Bobrowicz, F. W., Lynch, J. E., Fisher, K. J., Tabor, J. E.   +3 more
openaire   +1 more source

Topological Transport in Photonic Quasicrystals

CLEO: 2015, 2015
We show that it is possible to have topological transport in photonic quasicrytals, and therefore this lattices have one-way extended edgestates that are topologically protected against backscattering as they pass through defects or around corners.
Miguel A. Bandres, Mikael Rechtsman, Mordechai Segev   +2 more
openaire   +1 more source

PHOTON TRANSPORT PROBLEMS INVOLVING A POINT SOURCE

Analysis and Applications, 2007
We consider both a direct and an inverse problem of photon transport in an interstellar cloud with a point photon source. By using a non-rigorous (but physically reasonable) procedure, we prove that the direct problem has a unique solution and that the inverse problem also has a unique solution, under the assumptions that a single value of the photon ...
Belleni-Morante, A., Lamb, W., McBride, A.C.   +2 more
openaire   +2 more sources

Analysis of Multicasting in Photonic Transport Networks

Proceedings of the International IFIP-IEEE Conference on Broadband Communications, Global Infrastructure for the Information Age, 1996
The introduction of multicasting in optical transport networks is analysed and discussed. Three different optical path realisation techniques, involving the multicasting function, are examined: the Multicast Wavelength Path (MWP), the Multicast Virtual Wavelength Path (MVWP) and the Partial Multicast Virtual Wavelength Path (PVWP).
E. Iannone, LISTANTI, Marco, R. Sabella
openaire   +1 more source

Photonics Beyond Information Transport?

Photonics in Switching, 1995
Photonics has rapidly become the dominant technology for the transmission of information in the national and global infrastructure, including undersea, terrestrial long-haul, CATV and local telephone access applications. Expanding this success deeper into the network, we are challenged by new requirements such as conforming to the new ATM (asynchronous
openaire   +1 more source

Photon dose calculation incorporating explicit electron transport

Medical Physics, 1995
Significant advances have been made in recent years to improve photon dose calculation. However, accurate prediction of dose perturbation effects near the interfaces of different media, where charged particle equilibrium is not established, remain unsolved.
C X, Yu, T R, Mackie, J W, Wong
openaire   +2 more sources

Photonic transport network OAM technologies

IEEE Communications Magazine, 1996
The optical path concept was proposed to realize ubiquitous B-ISDN. It can make quantum leaps in both transmission capacity and cross-connect throughput simultaneously by exploiting WDM (wavelength division multiplexing) transmission and the wavelength routing capabilities of paths. Since the optical path is a new concept, new operation and management (
openaire   +1 more source