Results 121 to 130 of about 39,508 (311)

Ultrafast light blade: anisotropic sensitivity of isotropic medium to femtosecond laser radiation

, 2009
Material processing with ultrafast lasers has recently attracted considerable interest mainly due to a wide range of applications including laser surgery and 3D micro- and nano-structuring.
Shimotsuma, Yasuhiko, Hirao, Kazuyuki, Qiu, Jiarong, Kazansky, Peter G., Svirko, Yuri, Sakakura, Masaaki, Yang, Weijia, Aktürk, Selcuk, Beresna, Martynas   +8 more
core  

Polymorphic Superparaelectric Engineering Boosting Energy Storage Capacity in BaTiO3‐Based Ceramics

Advanced Science, EarlyView.
Herein, Ca2+ incorporation promotes the coexistence of CaTiO3‐/BaTiO3‐derived paraferroelectric states, stabilizing cubic‐orthorhombic‐tetragonal polymorphic superparaelectric phases. This minimizes polarization energy barriers, facilitating full polarization saturation without compromising efficiency.
Pan Liu, Xiang Ren, Jin Qian, Haihua Huang, Peng Li, Peng Fu, Jigong Hao, Huarong Zeng, Wei Li, Zhenxiang Cheng   +9 more
wiley   +1 more source

Harnessing Phase Separation for the Development of High‐Performance Hydrogels

Advanced Science, EarlyView.
ABSTRACT Hydrogels are indispensable for the development of next‐generation bioelectronics, soft robotics, and biomedical devices, where their mechanical properties determine performance and reliability. Among strategies to enhance hydrogel mechanics, phase separation enables controlled heterogeneity resulting in gel networks that are reinforced by ...
Yue Shao, Yiming Ma, Baihao Shao, Molly M. Stevens   +3 more
wiley   +1 more source

Harnessing ultrafast laser induced nanostructures in transparent materials

Material processing with ultrafast lasers has attracted considerable interest due to a wide range of applications from laser surgery and integrated optics to optical data storage, 3D micro- and nano-structuring [1,2].
Kazansky, P.G., Beresna, M., Gecevičius, Mindaugas   +2 more
core  

Measurement of Background Energy Content of a Linear cw Colliding PulseMode-Locked Dye Laser

, 1991
The background energy content of a linear cw CPM rhodamine 6G-DODCI femtosecond dye laser is determined by time- resolved measurement of the Rayleigh scattered signal in a colloidal silicon dioxid suspension with an ungated inverse time- correlated ...
Bäumler, W., Penzkofer, Alfons
core   +1 more source

Thermochemical Micro‐Explosion for Prompt Thrombolysis via Proximal Injection of Liquid Alkali Metal

Advanced Science, EarlyView.
We report a micro‐explosive thermochemical thrombolysis (METCT) therapy via injectable liquid alkali metal encapsulated in dimethyl silicone (LAM@oil). METCT enables prompt and safe vascular recanalization within 90 s. Critically, the LAM@oil system demonstrates significantly higher thrombolytic efficacy compared to clinically available thrombolytic ...
Xin Liao, Yi Hou, Jie Zhang, Bo Wang, Minghui Guo, Hua Qu, Wei Rao, Jing Liu   +7 more
wiley   +1 more source

Surface structure formation in WE54 Mg alloy subjected to ultrafast laser texturing

, 2016
© 2016 Laser Institute of America. Pico- and femtosecond laser surface structuring of WE54 Mg alloy was investigated in this paper. In particular, the effective response of rare earth elements during laser structuring and the surface structure formation ...
Castagne, Sylvie, Indira Khadka, Hongyu Zheng, Wang, Zhongke, Zheng, Hongyu, Khadka, Indira, Zhongke Wang, Sylvie Castagne   +7 more
core   +1 more source

Retina‐Inspired Bi‐Based Terahertz Photonic Neuromorphic Devices

Advanced Science, EarlyView.
Combined with effective band alignment and substrate engineering, bismuth materials are introduced to form terahertz photonic bio‐inspired devices with picosecond short‐term plasticity to enable multi‐scene visual perception. Thus obtained hardware through the terahertz optical neural network (THz‐ONN) demonstrates high recognition accuracy, providing ...
Pujing Zhang, Donggang Xie, Longyu Shi, Mengyuan Wang, Huiwen Shi, Yu Wu, Menglei Li, Guangwei She, Peijie Wang, Wensheng Shi, Cunlin Zhang, Kuijuan Jin, Guozhen Yang, Qingli Zhou, Chen Ge   +14 more
wiley   +1 more source

Polarization engineering with ultrafast laser writing in transparent media

, 2012
In this thesis novel developments in the field of femtosecond laser material processing are reported. Thanks to the unique properties of light-matter interaction on ultrashort time scales, this direct writing technique allowed the observation of unique ...
Beresna, Martynas
core  

Algorithm based comparison between the integral method and harmonic analysis of the timing jitter of diode-based and solid-state pulsed laser sources

, 2015
A comparison between two methods of timing jitter calculation is presented. The integral method utilizes spectral area of the single side-band (SSB) phase noise spectrum to calculate root mean square (rms) timing jitter. In contrast the harmonic analysis
Edwards, T. J., Su, C.-R., Brown, C. T A, Su, C. R., Edwards, T.J., Metzger, N. K., Brown, C.T.A., Metzger, N.K.   +7 more
core   +1 more source