Results 31 to 40 of about 20,626 (216)

Tunneling conductance in Superconductor/Ferromagnet junctions: a self consistent approach

, 2008
We evaluate the tunneling conductance of clean Ferromomagnet/Superconductor junctions via a fully self-consistent numerical solution of the microscopic Bogoliubov-DeGennes equations.
A. F. Andreev, E. Merzbacher, J. W. Brown, Oriol T. Valls, P. G. de Gennes, Paul H. Barsic, S. Datta   +6 more
core   +1 more source

FWM-based, Idler-free Phase Quantiser with Flexible Operating Power [PDF]

Optical Fiber Communication Conference, 2015
Coherently adding a signal's conjugate and third harmonic at the latter's wavelength enables phase quantisation across a large operating power range. With broadband phase noise, a 5.6dB QPSK receiver sensitivity improvement is achieved with BER= 10−4.
Bottrill, Kyle, Jones, L., Parmigiani, F., Richardson, D.J., Petropoulos, P.   +4 more
openaire   +2 more sources

Applied research note: exploring the relationship between first-week mortality and performance after the first week in broiler chickens

Journal of Applied Poultry Research
Summary: First-week mortality (FWM) is considered an important indicator of chick quality in broiler production, but its association with later performance is understudied.
Yara Slegers, Mieke Matthijs, Arjan Stegeman, Miel Hostens, Sjaak de Wit   +4 more
doaj   +1 more source

Design and simulation of modified duobinary modulated 40 Gbps 32 channel DWDM optical link for improved non-linear performance

Cogent Engineering, 2016
The paper presents a comprehensive analysis of a 40 Gbps Dense Wavelength Division Multiplexing system with 32 channels, spaced at 50 GHz. The design has been optimized for a long haul optical link for Modified Duobinary Return-to-Zero modulation format ...
Lucky Sharan, Akshay G. Shanbhag, V.K. Chaubey   +2 more
doaj   +1 more source

Spatial Manipulation via Four-Wave Mixing in Five-Level Cold Atoms

Frontiers in Physics, 2022
In a recent publication [S. Gan, Laser Phys. 31, 055401 (2021)], a scheme for controlling the vortex four-wave mixing (FWM) in a five-level atomic system has been put forward.
Shoufei Gan
doaj   +1 more source

Intersublevel Polaron Dephasing in Self-Assembled Quantum Dots

, 2007
Polaron dephasing processes are investigated in InAs/GaAs dots using far-infrared transient four wave mixing (FWM) spectroscopy. We observe an oscillatory behaviour in the FWM signal shortly (< 5 ps) after resonant excitation of the lowest energy ...
B. A. Carpenter, E. A. Zibik, G. Bastard, G. D. Mahan, J. Shah, J. W. Cockburn, L. R. Wilson, M. Hopkinson, M. J. Steer, M. S. Skolnick, N. Q. Vinh, P. J. Phillips, R. Ferreira, T. Grange, Y. Toyozawa   +14 more
core   +2 more sources

Four-wave mixing in spin-orbit coupled Bose-Einstein condensates

, 2020
We describe possibilities of spontaneous, degenerate four-wave mixing (FWM) processes in spin-orbit coupled Bose-Einstein condensates. Phase matching conditions (i.e., energy and momentum conservation laws) in such systems allow one to identify four ...
Hung, Nguyen Viet, Konotop, Vladimir V., Szankowski, Piotr, Trippenbach, Marek   +3 more
core   +1 more source

Functional tooth unit, periodontal status, and association with weight change in older adults

Journal of Periodontology, EarlyView.
Abstract Background Literature reports that having fewer teeth is associated with reduced chewing capacity, which in turn may lead to weight changes due to diminished oral functionality. This study aims to assess the association between functional tooth units (FTU) and periodontal status and weight change among older adults participating in the Health,
Mariana S. Muñoz, Natália M. Pola, Juliana B. Hilgert, Fernando N. Hugo, Roberto P. Pimentel, Eleanor M. Simonsick, Francisco W. M. G. Muniz   +6 more
wiley   +1 more source

Invited Article: Enhanced four-wave mixing in waveguides integrated with graphene oxide

APL Photonics, 2018
We demonstrate enhanced four-wave mixing (FWM) in doped silica waveguides integrated with graphene oxide (GO) layers. Owing to strong mode overlap between the integrated waveguides and GO films that have a high Kerr nonlinearity and low loss, the FWM ...
Yunyi Yang, Jiayang Wu, Xingyuan Xu, Yao Liang, Sai T. Chu, Brent E. Little, Roberto Morandotti, Baohua Jia, David J. Moss   +8 more
doaj   +1 more source

Ultrafast Coulomb-induced dynamics of 2D magnetoexcitons

, 2000
We study theoretically the ultrafast nonlinear optical response of quantum well excitons in a perpendicular magnetic field. We show that for magnetoexcitons confined to the lowest Landau levels, the third-order four-wave-mixing (FWM) polarization is ...
B. F. Feuerbacher, C. Sieh, C. Stafford, D. J. Lovering, D. Paquet, D. S. Chemla, D. S. Chemla, E. J. Mayer, E. J. Mayer, E. Tsitsishvili, F. C. Spano, G. M. Kavoulakis, H. Haug, H. Wang, H. Wang, H. Zhou, I. Balslev, I. E. Perakis, I. E. Perakis, I. E. Perakis, I. E. Perakis, I. E. Perakis, I. V. Lerner, J. A. Leegwater, J. B. Stark, J. Shah, J.-Y. Bigot, K. Bott, K. Leo, K. Victor, K.-H. Pantke, M. Jiang, M. Lindberg, M. Lindberg, M. Lindberg, M. Lindberg, M. Wegener, N. A. Fromer, N. Primozich, N. Primozich, O. Carmel, P. Kner, P. Kner, P. Kner, R. Binder, S. Bar-Ad, S. Glutsch, S. Glutsch, S. Mukamel, S. Schmitt-Rink, S. Schmitt-Rink, S. Schmitt-Rink, S. T. Cundiff, S. Weiss, S. Yokojima, T. Aoki, T. Rappen, T. Rappen, T. V. Shahbazyan, T. V. Shahbazyan, T. Yajima, Th. Östreich, Th. Östreich, Th. Östreich, U. Siegner, U. Siegner, V. Chernyak, V. Chernyak, V. M. Axt, V. M. Axt, V. M. Axt, V. M. Axt, W. Schäfer, Y. Z. Hu, Yu. A. Bychkov   +74 more
core   +2 more sources