Results 121 to 130 of about 65,629 (304)

Anomalous interaction of longitudinal electric field with hydrogenated amorphous silicon films

, 2013
Cylindrically polarized beams produced by femtosecond laser written S-waveplate are used to modify amorphous silicon films. Paradoxically, no crystallization is observed in the maximum of longitudinal electric field despite the strongest light ...
Kazansky, P.G., Andrey G. Kazanskii, Jingyu Zhang, Mindaugas Gecevičius, Beresna, M., Gecevičius, M., Peter G. Kazansky, Zhang, J., Kazanskii, A.G., Martynas Beresna   +9 more
core   +1 more source

An exploration of safe and efficient nucleus fragmentation strategies for femtosecond laser-assisted cataract surgery in short axial length patients

BMC Ophthalmology
Purepose The intraoperative femtosecond laser time, Cumulative Dissipated Energy (CDE), Effective Phacoemulsification time (EPT), and intraoperative fluid perfusion volume were compared under different model fragmentation modes using Catalys femtosecond ...
Bin Lin, Long-long Chen, Dong-kan Li
doaj   +1 more source

Dual‐Mode Type I/II Photosensitization of a Stable Mesoporous Hydrogen‐Bonded Organic Framework for Antibacterial Therapy

Advanced Science, EarlyView.
A π‐conjugated donor–acceptor PDI monomer undergoes hydrogen‐bonded self‐assembly to form a robust mesoporous framework. The ordered molecular arrangement promotes efficient intersystem crossing and charge separation, leading to simultaneous Type I and Type II reactive oxygen species generation with a high singlet oxygen quantum yield.
Yi‐Lun Cheng, Hui Yuan, Yuhang Li, Zi‐Yu Wang, Rui Wang, Qi Yin, Xue‐Ning Ren, Miao Zheng, Yi Zeng, Tian‐Fu Liu, Zaisheng Ye   +10 more
wiley   +1 more source

Fabrication of photonic devices in heavy metal oxide glass by femtosecond laser direct writing

Femtosecond laser can induce a permanent refractive index change inside various transparent materials via multiphoton absorption. This technique also opens up new possibilities for fabricating photonic devices in highly nonlinear glasses such as heavy ...
Corbari, Costantino, Kazansky, Peter G., Yang, Weijia, Sakaguchi, Koichi   +3 more
core  

Picosecond Laser Micro-welded Similar and Dissimilar Material

, 2014
We report the successful picoseconds laser welding of a range of similar and dissimilar materials. The welds are formed by a tightly focused 1030 nm, 5.9 ps, 400 kHz laser system which induces microplasma formation.
Thomson, Robert R, Carter, Richard; id_orcid, Shephard, Jonathan D; id_orcid, Hand, Duncan Paul; id_orcid, Chen, Jianyong   +4 more
core  

Multidimensional and Multifunctional Laser‐Induced Graphene (LIG) for Point‐of‐Care and Wearable Biosensing, Theranostics, and Bioactive Interfaces Toward Personalized Healthcare and Regenerative Medicine

Advanced Science, EarlyView.
Multidimensional laser‐induced graphene (LIG) spanning from 0D to 3D architectures is comprehensively reviewed for multifunctional biomedical platforms, including biosensing, theranostics, and bioactive interface applications, which highlights its potentials for point‐of‐care diagnostics, wearable health monitoring, smart drug delivery, and tissue ...
Li Zhang, Yurou Yuan, Xiaohong Ding, Wing Cheung Mak   +3 more
wiley   +1 more source

Femtosecond laser induced vortex anisotropy

Anisotropic bubble chain structures are produced by ultrashort pulse laser irradiation in silica glass.
Kazansky, P.G., Beresna, M.
core  

Investigation of femtosecond laser induced thermal ablation of polyethylene

, 2008
We present a novel method for profiling high aspect ratio and undercut laser drilled holes using sacrificial layers. This profiling method is used to compare and contrast laser ablation of polyethylene films under exposure to ultraviolet (266nm) and near-
Dawes, Judith M, Andrew J. Lee, Michael J. Withford, Withford, Michael J, Lee, Andrew J, Judith M. Dawes   +5 more
core   +1 more source

Laser‐Induced Periodic Phase‐Transition of 2D‐MoTe2 Nanograting Template for Frequency‐Shift Digital‐SERS Immunoassay of Autoimmune Disease

Advanced Science, EarlyView.
A protocol of fs‐laser‐induced periodic phase‐transition of 2D‐MoTe2 template, inducing AuNPs@1T’‐MoTe2 nanograting, is developed. The labeled AuNPs@1T’‐MoTe2 substrate conjugated with specialized immunoglobulin G demonstrates an unexpectedly high discrimination accuracy close to unity for serological diagnosis of rheumatoid arthritis by frequency ...
Yao Yao, Lulu Cao, Xiaolin Sun, Qiang Wang, Zhiyang Xu, Tianrui Zhai, Yan Zhao, Yijian Jiang, Zhanguo Li, Yinzhou Yan   +9 more
wiley   +1 more source

Speckle-free laser marking of metals using liquid-crystal-based spatial light modulator [PDF]

, 2013
A liquid-crystal-based spatial light modulator (LC-SLM) is used for laser beam patterning and manipulation in order to produce very small, speckle-free 2D marks on metal surfaces.
Wlodarczyk, Krystian Lukasz, Kaakkunen, Jarno, Kaakkunen, Jarno J. J., Vahimaa, Pasi, Wlodarczyk, Krystian, Hand, Duncan, Hand, Duncan Paul; id_orcid   +6 more
core