Results 211 to 220 of about 279,783 (265)

OPTICAL SPIN INJECTION IN SEMICONDUCTORS

Modern Physics Letters B, 2010
A theoretical review of optical spin injection for bulk semiconductors is presented. As an example, we calculated such response in bulk Si , GaAs and CdSe . For each of these systems the computation of the electronic wavefunctions and energies are obtained under the density functional theory (DFT) within the local density approximation (LDA).
Mendoza, Bernardo S., Salazar, Cuauhtémoc, Cabellos, J. L.   +2 more
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Optically injected mode-locked laser

Physical Review E, 2011
We study analytically and numerically a delay differential model of a passively mode-locked semiconductor laser subjected to a single frequency coherent injection. The width of the locking cone is calculated asymptotically in the limit of small injection and compared to that obtained by direct numerical integration of the model equations.
Rebrova, Natalia, Huyet, Guillaume, Rachinskii, Dmitrii, Vladimirov, Andrei G.   +3 more
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Nanoplasmonic drill for optical injection

Plasmonics in Biology and Medicine XVIII, 2021
Gold nanoparticles are ideal tools for cargo transportation. However, injection of nanoparticles into cells remains difficult. Current method utilizes laser light to heat up the particles and the surrounding media to create shock wave or air bubble to push the particle into the cells.
Ancheng Da, Jacob Krach, Yanan Chu, Yunbo Liu, Somin Eunice Lee   +4 more
openaire   +1 more source

Injection System. Part II—Injection Optics

Review of Scientific Instruments, 1953
The injection optical system, through which the 3.6-Mev proton beam from the Van de Graaff accelerator enters the Cosmotron, consists primarily of a deflecting magnet and an electrostatic inflector in which the beam is deflected through angles of 25° and 30°, respectively.
J. G. Cottingham, W. H. Moore, E. J. Rogers, C. M. Turner   +3 more
openaire   +1 more source

Transfection by Optical Injection

2010
David J. Stevenson SUPA, School of Physics & Astronomy, School of Biology, University of St. Andrews, St. Andrews, ScotlandFrank J. Gunn-Moore School of Biology, University of St. Andrews, St. Andrews, Scotland Paul Campbell Department of Electronic Engineering and Physics, University of Dundee, Dundee, Scotland Kishan Dholakia SUPA, School of Physics &
David Stevenson, Frank Gunn-Moore, Paul Campbell, Kishan Dholakia   +3 more
openaire   +2 more sources

Optical Monitoring of Polypropylene Injection Molding

Journal of Reinforced Plastics and Composites, 1998
We have developed a model to describe the behavior of an optical fiber sensor for monitoring injection molding. The sensor was used to detect light reflected from the mold cavity during the packing and cooling phases of injection molding of polypropylene. Light which reflected off the opposite wall of the mold and back to the optical fiber was analyzed
Charles L. Thomas, Anthony J. Bur
openaire   +1 more source

Polarization-Independent Optical Injection Locking

Optical Fiber Communication Conference, 2017
A pluggable system making optical injection locking independent of the incoming signal's polarization-state is proposed and experimentally verified to maintain stable locking for random polarizations without performance loss in carrier recovery for coherent optical communications.
Jokhakar Jignesh, Bill Corcoran, Arthur James Lowery   +2 more
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Optically Injected Spin Currents in Semiconductors

Physical Review Letters, 2000
We show that quantum interference of one and two photon absorption from a two color field allows one to optically inject ballistic spin currents in unbiased semiconductors. The spin currents can be generated with or without an accompanying electrical current and can be controlled using the relative phase of the two colors.
R D, Bhat, J E, Sipe
openaire   +2 more sources