Results 141 to 150 of about 1,022,007 (266)

Fluorene‐based blue emitters: On the path to electrically pumped organic lasers

FlexMat, EarlyView.
Electrically pumped efficient operation remains unrealized, a major challenge in optoelectronics. Fluorene‐based blue‐emitting semiconductors are promising gain media, thanks to their structural tunability and favorable emission properties. This review summarizes recent advances, highlights their reliability and versatility in lasing, and outlines key ...
Yong Yan, Hao Li, Mengna Yu, Huiyin Wang, Jiangqiang He, Menghan Wu, Quanyou Feng, Linghai Xie   +7 more
wiley   +1 more source

Research advances in metal halides for flexible indirect X‐ray imaging

FlexMat, EarlyView.
This review focuses on the preparation of flexible scintillators and provides an in‐depth discussion of the preparation methods and optimization of flexible films and flexible amorphous materials for MHs X‐ray indirect detectors. The content covers characterization methods for flexible materials, the selection of flexible substrates, optimization ...
Tianyu Xie, Youkui Xu, Dexue Liu, Zhiwen Jin   +3 more
wiley   +1 more source

E-band telecom-compatible 40 dB gain high-power bismuth-doped fiber amplifier with record power conversion efficiency

APL Photonics
Multi-band transmission is one of the key practical solutions to cope with the continuously growing demand on the capacity of optical communication networks without changing the huge existing fiber base.
Aleksandr Donodin, Egor Manuylovich, Vladislav Dvoyrin, Mikhail Melkumov, Valery Mashinsky, Sergei Turitsyn   +5 more
doaj   +1 more source

Somatic cell reprogramming for Parkinson's disease treatment

Ibrain, Volume 11, Issue 1, Page 59-73, Spring 2025.
The fundamental purpose of cell reprogramming to treat Parkinson's disease is to generate dopaminergic neurons (DAN) and do transplantation. There are two ways to accomplish this. One method is to induce cells into induced DA neurons (iDAN) directly or to induce cells into induced pluripotent stem cells and ultimately into iDAN in vitro. Another option
Xiaozhuo Li, Kevin Fang, Fengping Wang
wiley   +1 more source

The Endothelial CXCR Family in Vascular Health and Disease

iNew Medicine, EarlyView.
ABSTRACT Endothelial cells (ECs) form the dynamic interface between blood and tissue, serving as key regulators of vascular homeostasis, inflammation, and repair. Among the molecular systems governing endothelial behavior, the C‐X‐C motif chemokine receptor (CXCR) family—originally characterized in immunology for its roles in leukocyte trafficking and ...
Zhiming Wu, Yandi Wu, Suowen Xu, Yu Huang, Li Wang   +4 more
wiley   +1 more source

High‐Efficiency Graphene‐Silicon Slot‐Waveguide Microring Modulator at 1.5 and 2 µm Wavelength Bands

Laser &Photonics Reviews, EarlyView.
E/O modulators typically face a trade‐off between bandwidth and modulation efficiency. An integrated E/O modulator is presented that simultaneously achieves wideband, large bandwidth, and high modulation efficiency operation by embedding a partially overlapped double‐layer graphene on a compact silicon slot‐waveguide microring resonator.
Chao Luan, Deming Kong, Yong Liu, Yunhong Ding, Hao Hu   +4 more
wiley   +1 more source

Ytterbium doped nano-crystalline optical fiber for reduced photodarkening

, 2010
We report suppression of photodarkening in Yb-doped nano-crystalline fibers in silica host. The photodarkening induced loss reduced by 20 times compared to Yb-doped aluminosilicate fibers. The laser efficiency of the nano-crystalline fiber was 79%
Kalita, M.P., Das, S., Standish, R.J., Boyland, A.J., Yoo, S., Webb, A., Paul, M.C., Bhadra, S.K., Pal, M.   +8 more
core   +1 more source

Preliminary Evaluation of Thulium Doped Fiber Laser in Pig Model of Liver Surgery. [PDF]

Biomed Res Int, 2018
Janeczek M, Świderski J, Czerski A, Żywicka B, Bujok J, Szymonowicz M, Bilewicz E, Dobrzyński M, Korczyński M, Chrószcz A, Rybak Z.   +10 more
europepmc   +1 more source

Harnessing Optical Limiting in Saturable Absorbers for Reconfigurable Spectral Engineering of Ultrafast Fiber Lasers

Laser &Photonics Reviews, EarlyView.
Optical limiting in a nanomaterial‐polymer saturable absorber is harnessed as a functional intracavity degree of freedom, where pump‐controlled photothermal loss continuously reshapes the gain spectrum of rare‐earth ions, enabling non‐mechanical spectral engineering in an ultrafast fiber laser.
Maolin Dai, Weitao Wang, Masahiro Nomura, Sze Yun Set, Shinji Yamashita   +4 more
wiley   +1 more source

High‐Speed Integrated Graphene‐Silicon Slot‐Waveguide Electro‐Absorption Modulator at 2 and 1.5 µm Wavebands

Laser &Photonics Reviews, EarlyView.
A high‐speed, efficient, robust, and compact 2‐μm$\mathrm{\mu}\mathrm{m}$ waveband E/O absorption modulator based on a graphene‐silicon slot waveguide is demonstrated. This work represents a significant advancement towards the realization of high‐speed integrated E/O modulators for optical communication systems operating at the 2‐μm$\mathrm{\mu}\mathrm{
Chao Luan, Deming Kong, Yunhong Ding, Hao Hu   +3 more
wiley   +1 more source