Results 51 to 60 of about 58,964 (242)

High-Quality, InN-Based, Saturable Absorbers for Ultrafast Laser Development

Applied Sciences, 2020
New fabrication methods are strongly demanded for the development of thin-film saturable absorbers with improved optical properties (absorption band, modulation depth, nonlinear optical response).
Laura Monroy, Marco Jiménez-Rodríguez, Eva Monroy, Miguel González-Herráez, Fernando B. Naranjo   +4 more
doaj   +1 more source

Exploring the influence of lactoferrin on wound healing and related signaling pathways: a systematic review

FEBS Open Bio, EarlyView.
Lactoferrin promotes wound healing by activating MAPK, PI3K/Akt, and extracellular matrix pathways, enhancing fibroblast remodeling, proliferation, and re‐epithelialization. These mechanisms highlight its therapeutic potential in inflammation control, tissue repair, and remodeling.
Morgana Lüdtke Azevedo, Kátia Cristiane Hall, Matheus dos Santos Fernandez, Geovanna Peter Corrêa, Rafael Guerra Lund   +4 more
wiley   +1 more source

Evaluating the effect of γ‐oryzanol on MASLD pathology using a medaka fish model

FEBS Open Bio, EarlyView.
This study explores a liver disease called MASLD, which is increasing worldwide and can lead to serious damage. Researchers used medaka fish instead of rodents to test a food compound, γ‐oryzanol. Fish fed this compound had less liver fat and healthier gut bacteria.
Yukako Ito, Haduki Asano, Ayano Ueki, Joe Sakamoto, Yasuhiro Kamei, Hayato Tokumoto, Ayaka Yazawa, Shigeki Kamitani   +7 more
wiley   +1 more source

Effect of laser pulse shape on optical limiting properties of reverse saturable absorbers

, 2000
Using an analytical approach we quantitatively estimate the effects of the pulse shape and material parameters on the intensity-dependent transmittance of reverse saturable absorbers.
A. Kobyakov, Hagan, D. J., D. J. Hagan, Van Stryland, E. W., E. W. Van Stryland, Kobyakov, A.   +5 more
core   +1 more source

Microwave and Millimeter Wave Signal Generation Using Mode-Locked Semiconductor Lasers with Intra-Waveguide Saturable Absorbers [PDF]

, 1992
Microwave and millimeter wave signals can be generated using mode-locked semiconductor lasers with intra-waveguide saturable absorbers. Monolithic and external cavity devices optimized for electrical and optical signal generation are discussed along with
Helkey, R. J., Wasserbauer, J. G., Bowers, J. E., Derickson, Dennis J., Mar, A., Wey, Y. G., Y.G. Wey, D.J. Derickson, R.J. Helkey, A. Mar, J.G. Wasserbauer, J.E. Bowers   +11 more
core   +1 more source

Identifying and characterising a plant GH1 β‐glucosidase that exhibits hydrolytic activity on N‐linked glucopyranoside

FEBS Open Bio, EarlyView.
We report the first β‐glucosidase with demonstrated hydrolytic activity on an N‐linked glycopyranoside. The enzyme, native to maize, was biochemically characterised for this novel reaction, and structural modelling of the enzyme–substrate complex revealed several clues to the underlying reduced catalytic rate relative to its native O‐glycopyranoside ...
Hani Gharabli, Carlotta Chiesa, Maher Abou Hachem, Ditte Hededam Welner   +3 more
wiley   +1 more source

Exploiting nonlinear properties of pure and Sn-doped Bi2Te2Se for passive Q-switching of all-polarization maintaining ytterbium- and erbium-doped fiber lasers

Scientific Reports, 2017
Due to their broadband nonlinear optical properties, low-dimensional materials are widely used for pulse generation in fiber and solid-state lasers. Here we demonstrate novel materials, Bi2Te2Se (BTS) and Sn-doped Bi2Te2Se (BSTS), which can be used as a ...
Jakub Bogusławski, Maciej Kowalczyk, Przemysław Iwanowski, Andrzej Hruban, Ryszard Diduszko, Kazimierz Piotrowski, Krzysztof Dybko, Tomasz Wojciechowski, Marta Aleszkiewicz, Jarosław Sotor   +9 more
doaj   +1 more source

All-Fiber Saturable Absorbers for Ultrafast Fiber Lasers

IEEE Photonics Journal, 2019
The past decade has witnessed tremendous achievements of ultrafast fiber laser technologies due to rapid developments of saturable absorbers (SAs) based on, in particular, nanomaterials such as 0D quantum dot, 1D carbon nanotubes, 2D layered materials ...
Wei Zhao, Guangwei Chen, Wenlei Li, Guomei Wang, Chao Zeng   +4 more
doaj   +1 more source

A Comparison for Saturable Absorbers: Carbon Nanotube Versus Graphene

Advanced Photonics Research, 2022
Saturable absorbers (SAs) have been regarded as a low‐cost yet robust and compact solution to pulse generation in different fiber and solid‐state ultrafast lasers. Following the development of different artificial SAs and semiconductor SA mirrors, carbon
Kuen Yao Lau, Xiaofeng Liu, Jianrong Qiu
doaj   +1 more source

High Modulation Depth Enabled by Mo₂Ti₂C₃T_x MXene for Q-Switched Pulse Generation in a Mid-Infrared Fiber Laser

Nanomaterials, 2022
Two-dimensional (2D) materials show great promise as saturable absorbers (SAs) for ultrafast fiber lasers. However, the relatively low modulation depth and poor stability of some 2D materials, such as graphene and black phosphorus, restrict their ...
Xin Guo, Shuai Wang, Peiguang Yan, Jinzhang Wang, Linpeng Yu, Wenjun Liu, Zhijian Zheng, Chunyu Guo, Shuangchen Ruan   +8 more
doaj   +1 more source