Results 61 to 70 of about 3,322,116 (291)

Eight state optical flip-flop based on coupled unidirectional ring lasers with optical feedback

, 2006
An eight-state optical flip-flop based on coupled unidirectional ring lasers with optical feedback is demonstrated. The flip-flop exhibits low power operation since it contains only one gain medium.
Z. Li, Ju, H, Zhang, S., D. Lenstra, S. Zhang, Li, Z., H. Ju, Liu, Y., Zhang, S Shaoxian, Ju, H., Liu, Y Yong, H.J.S. Dorren, Lenstra, D.; id_orcid, Lenstra, D Daan, Li, Z Zhonggui, Lenstra, D., Khoe, GD Giok-Djan, Khoe, G.D., Y. Liu, Dorren, HJS Harm, G.D. Khoe, Dorren, H.J.S.   +21 more
core   +1 more source

The C‐terminal region of KIF26B is indispensable for nephron progenitor condensation and kidney formation in mice

FEBS Open Bio, EarlyView.
KIF26B plays an important role in kidney development. We engineered mice lacking the C‐terminal region of KIF26B and found severe kidney defects, including bilateral renal agenesis, similar to full Kif26b knockout mice. The mutation disrupted nephron progenitor condensation and reduced Gdnf‐Wnt11 signaling, showing that the KIF26B C‐terminal region is ...
Yuta Yamamura, Kengo Furuichi, Hiromitsu Akamatsu, Naoki Yamamoto, Sako Keisuke, Akihiko Koshino, Taichiro Minami, Megumi Oshima, Akinori Hara, Norihiko Sakai, Miho Shimizu, Kenta Takahashi, Minako Yamamura, Shin‐ichi Horike, Takiko Daikoku, Kenichi Harada, Yohei Shinmyo, Hiroshi Kawasaki, Takashi Wada, Yasunori Iwata   +19 more
wiley   +1 more source

Electrically injected parity-time symmetric distributed feedback laser diodes (DFB) for telecom applications

Nanophotonics, 2021
The new paradigm of parity-time symmetry in quantum mechanics has readily been applied in the field of optics with numerous demonstrations of exotic properties in photonic systems.
Brac de la Perrière Vincent, Gaimard Quentin, Benisty Henri, Ramdane Abderrahim, Lupu Anatole   +4 more
doaj   +1 more source

Mode structure of a vertical-cavity surface-emitting laser subject to optical feedback [PDF]

, 2006
We present an analysis of the external cavity mode (ECM) structure of a vertical-cavity surface-emitting laser subject to optical feedback. We consider a model in which two transverse optical modes are excited.
Green, K, Lenstra, D., Green, K., Lenstra, D, Krauskopf, B   +4 more
core  

Directed evolution of enzymes at the crossroads of tradition and innovation

FEBS Open Bio, EarlyView.
An iterative cycle of data‐driven enzyme optimization comprising four stages: genetic diversification of a template enzyme, expression of protein variants, high‐throughput evaluation, and machine‐learning‐guided redesign of the next variant library.
Maria Tomkova, Andrej Mirossay, Erik Sedlak   +2 more
wiley   +1 more source

Electrically Stimulated and Frequency-Tunable Photonic Tonic Spiking Neuron Based on a DFB-LD Under Optical Feedback

Photonics
Based on a distributed feedback laser diode (DFB-LD) under optical feedback, a novel scheme for generating neuron-like tonic spiking is proposed, and the characteristics of the generated neuron-like tonic spiking are numerically investigated.
Zhiqiang Lei, Chaotao He, Qiupin Wang, Pu Ou, Zhengmao Wu, Guangqiong Xia   +5 more
doaj   +1 more source

VCSEL with multi-transverse cavities with bandwidth beyond 100 GHz

Nanophotonics, 2021
To fulfill the demands of high-speed photonic applications, researchers, and engineers have been working to improve the modulation bandwidth (MBW) of semiconductor lasers.
Heidari Elham, Ahmed Moustafa, Dalir Hamed, Bakry Ahmed, Alshahrie Ahmed, Sorger Volker J.   +5 more
doaj   +1 more source

Resonant fiber scanner with optical feedback

Optics Express, 2014
The addition of an apertured mirror before the imaging lens is proposed as a method of providing feedback in a single-axis resonant fiber scanner. Reflection at the scan extremities generates timing signals interlaced with back-scattered data, and a phase locked loop and a proportional controller then adjust the drive frequency and amplitude.
Mokhtar, MHH, Syms, RRA
openaire   +3 more sources

Pure frequency oscillations of semiconductor lasers with filtered optical feedback [PDF]

, 2005
A semiconductor laser subject to delayed filtered optical feedback can show pure frequency oscillations with a period of the order to the delay time, while the power remains practically constant.
B. Krauskopf, Lenstra, D.; id_orcid, Krauskopf, B., D. Lenstra, H. Erzgräber, Lenstra, D Daan, Lenstra, D, Erzgraber, H, Krauskopf, B, Erzgräber, H.   +9 more
core  

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