Results 51 to 60 of about 81,112 (307)

Elevated Connectivity During Language Processing Is Associated With Cognitive Performance in SeLECTS

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Self‐Limited Epilepsy with Centrotemporal Spikes (SeLECTS) is associated with language impairments despite seizures originating in the motor cortex, suggesting aberrant cross‐network interactions. Here we tested whether functional connectivity in SeLECTS during language tasks predicts language performance.
Wendy Qi, Katharine Lee, Kerry C. Nix, Miguel Menchaca, Xiwei Shé, Lorelei Santa Maria, Wei Wu, Zihuai He, Fiona M. Baumer   +8 more
wiley   +1 more source

Four-Wave Mixing Conversion in QD SOA: reservoir effects

مجلة علوم ذي قار, 2019
In this paper, it is present a model to simulate Four-wave mixing in quantum dot semiconductor optical amplifier, taking into account the influence of carrier heating at reservoir.
Ahmed H. Flayyih, Riyam H. Ali
doaj   +4 more sources

Dissecting X-Ray Raman Resonances Using Four-Wave Mixing

EPJ Web of Conferences, 2013
The stimulated x-ray Raman signal has been calculated for the amino acid cysteine using broadband (FWHM ≃14.2eV, 128 as) pulses tuned to the nitrogen K-edge.
Govind Niranjan, Healion Daniel, Zhang Yu, Biggs Jason D., Shaul Mukamel   +4 more
doaj   +1 more source

Femtosecond Red and Near-Infrared Lasers Due to Cascaded-Raman-Assisted Four-Wave Mixing in a Nonlinear Yb-Doped Fiber Amplifier

Applied Sciences, 2020
We demonstrated a straightforward approach to generate red and near-infrared laser emissions by a Raman-assisted four wave mixing (FWM) process in a nonlinear Yb-doped fiber amplifier, delivering 342 fs pulses of 241 nJ at 864 nm, 834 fs pulses of 21 nJ ...
Hui Xu, Shuai Yuan, Zhengru Guo, Qingshan Zhang, Yanying Ma, Qiang Hao, Kun Huang, Min Li, Yuan Nie, Heping Zeng   +9 more
doaj   +1 more source

Integration of Serum Neurofilament Light Chain and Cortical Dysfunction Improves Diagnostic Accuracy in ALS

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To determine whether integration of serum neurofilament light chain (NfL) and cortical dysfunction improves diagnostic accuracy in amyotrophic lateral sclerosis (ALS) when applied alongside the Gold Coast criteria (GCC). Methods In this prospective study, 148 participants with suspected ALS were recruited (101 ALS and 47 with ALS ...
Aicee Dawn Calma, Nathan Pavey, Yukiko Tsuji, Amirul Ab Ghapar, Mehdi A.J. van den Bos, Bronwen Orden, Grace Lee, Linda Mekhael, Julie Ryder, Cláudia Santos Silva, David McDonald, Fakhria Kakar, Con Yiannikas, Matthew C. Kiernan, David A. Brown, Parvathi Menon, Steve Vucic   +16 more
wiley   +1 more source

Tailorable dispersion in a four-wave mixing laser

Optics Letters, 2017
We present experimental results demonstrating controllable dispersion in a ring laser by monitoring the lasing-frequency response to cavity-length variations. Pumping on an N-type level configuration in ${}^{87}$Rb, we tailor the intra-cavity dispersion slope by varying experimental parameters such as pump-laser frequency, atomic density, and pump ...
Kutzke, Demetrious T., Wolfe, Owen, Rochester, Simon M., Budker, Dmitry, Novikova, Irina, Mikhailov, Eugeniy E.   +5 more
openaire   +3 more sources

Type II micro-comb based on a filter-driven four wave mixing laser

, 2017
We numerically and experimentally demonstrate the generation of Type II micro-combs in a Filter-Driven four wave mixing laser, showing that the generated Type II micro-combs are fully coherent. © OSA 2017.
Brent E. Little, Alessia Pasquazi, Sai T Chu, Dave J Moss, Bao, Hualong, Little, Brent E., Roberto Morandotti, Moss, Dave J., Andrew Cooper, Morandotti, Roberto, Hualong Bao, Marco Peccianti, Chu, Sai T., Pasquazi, Alessia, Bao, Hualong (H.Bao@sussex.ac.uk), Cooper, Andrew, Peccianti, Marco   +16 more
core   +1 more source

Variable Stiffness Flexure Structures Enabled by Phase‐Change Gallium and Adhesive Interfacial Locking for Soft Robotic Applications

Advanced Engineering Materials, EarlyView.
A flexure‐based variable stiffness structure is developed by integrating phase‐change modulation and adhesive interfacial locking of gallium. The design enables a wide stiffness variability, transitioning from soft, flexible behavior to rigid, load‐supporting performance.
Sungjin Kim, Sohee John Yoon, Yong‐Lae Park   +2 more
wiley   +1 more source

Fundamentals of Highly Non-Degenerate Cascaded Four-Wave Mixing

Applied Sciences, 2015
By crossing two intense ultrashort laser pulses with different colors in a transparent medium, like a simple piece of glass, a fan of multicolored broadband light pulses can be simultaneously generated. These newly generated pulses are emitted in several
Rosa Weigand, Helder M. Crespo
doaj   +1 more source

Filter-driven four wave mixing laser with a controllable repetition rate

, 2017
We demonstrate a robust control over the repetition rate of a micro-comb laser by using the Filter-Driven Four Wave Mixing scheme. Results show that the coherence can be kept during the whole process. © OSA 2017.
Sai T. Chu, Brent E. Little, Alessia Pasquazi, Rowley, Maxwell, Cooper, Andrew (A.Cooper@sussex.ac.uk), Di Lauro, Luigi, Bao, Hualong, David J Moss, Little, Brent E., Roberto Morandotti, Andrew Cooper, Morandotti, Roberto, Hualong Bao, Marco Peccianti, Chu, Sai T., Pasquazi, Alessia, Maxwell Rowley, Moss, David J., Cooper, Andrew, Luigi Di Lauro, Peccianti, Marco   +20 more
core   +1 more source