Results 71 to 80 of about 299,628 (304)

Efficiency Enhancing Technique for Rod Fiber Picosecond Amplifiers with Optimal Mode Field Matching

Micromachines, 2023
A high power and high quality picosecond laser is crucial in MEMS fabrication regarding micromachines. Optimal seed beam coupling is an important precondition to enhance laser efficiency. However, empirical coupling limits its development. In this paper,
Danni Liu, Xiaojie Mao, Guojiang Bi, Tianqi Li, Dawei Zang, Ninghui Sun   +5 more
doaj   +1 more source

Ultralow mode-volume photonic crystal nanobeam cavities for high-efficiency coupling to individual ​carbon nanotube emitters

, 2014
The unique emission properties of single-walled ​carbon nanotubes are attractive for achieving increased functionality in integrated photonics. In addition to being room-temperature telecom-band emitters that can be directly grown on ​silicon, they are ...
Imamura S., Iwamoto S., Liu X., Ohta R., Miura R., Shimada T., Kato Y. K., Ishii A., Arakawa Y.   +8 more
core   +1 more source

Septin 9 PB domains coordinate centrosome positioning and microtubule acetylation to control epithelial polarity

FEBS Letters, EarlyView.
Septin 9 polybasic domains couple phosphoinositide‐rich membrane binding to centrosome positioning, Golgi organization, and microtubule acetylation to control epithelial polarity. Their loss disrupts this axis, causing centrosome mispositioning, Golgi fragmentation, reduced microtubule acetylation, and polarity inversion via upregulation of the ...
Ting ting Cai, Mohyeddine Omrane, Nassima Benzoubir, Didier Samuel, Ama Gassama‐Diagne   +4 more
wiley   +1 more source

Analysis of the Coupling Efficiency of a Dual-Fiber Spherical Coupler and Improvement of the Coupling Efficiency with a Polished Spherical Coupler

IEEE Photonics Journal, 2018
Efficient coupling of light from one waveguide to another is essential for many applications. The structural complexity of the coupler and the boundary discontinuity makes analyzing and improving the light energy coupling efficiency challenging.
Yuanzheng Chen, Jiwen Cui, Jiubin Tan
doaj   +1 more source

Coupling efficiencies in single-photon on-demand sources [PDF]

SPIE Proceedings, 2004
9 pages, 5 ...
Castelletto, Stefania, Degiovanni, I. P., Ware, Michael, Migdall, Alan   +3 more
openaire   +2 more sources

An unexpected alternative viologen electron mediator site in tungsten‐containing formate dehydrogenase

FEBS Letters, EarlyView.
An unexpected alternative interaction site for ethyl viologen was identified in formate dehydrogenase 1 from Methylorubrum extorquens. Combined mutagenesis, kinetic analysis, and docking revealed that aromatic residues near an iron–sulfur cluster enable flavin mononucleotide‐independent electron transfer, offering a framework for engineering improved ...
Eleni G. Poloniataki, Yong Hwan Kim
wiley   +1 more source

Investigation of the Effects of Alignment Errors on Coupling Efficiency in Lens-Based Coupling of Polarization-Maintaining Fibers

Photonics
The fiber mode field overlap integral method is employed to analyze the influencing factors of coupling efficiency, as well as the effects of axial and radial alignment errors on coupling efficiency under different relative apertures of coupling lenses ...
Lina Luo, Zhiyong Yang, Shun Li, Enqing Chen   +3 more
doaj   +1 more source

Coupling efficiency of a partially coherent collimating laser from turbulent biological tissue to fiber

Results in Physics, 2019
We propose a model of the fiber coupling efficiency for a partially coherent collimating laser beam propagating through turbulent biological tissue to fiber.
Qiyong Liang, Beibei Hu, Yixin Zhang, Yun Zhu, Shibao Deng, Lin Yu   +5 more
doaj   +1 more source

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

FEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace, Alyssa Borges, Charles Arnaud, Tove Karlsson, Nina K. Bröker, Stefanie Barbirz, Marta Bally   +6 more
wiley   +1 more source

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

FEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa, Shinya Sugimoto, Toshiro Sato   +2 more
wiley   +1 more source