Results 81 to 90 of about 215,527 (326)

Femtosecond Single Cycle Pulses Enhanced the Efficiency of High Order Harmonic Generation [PDF]

, 2021
Abdelmalek Taoutioui, Hicham Agueny
openalex   +1 more source

Impact of Lattice Heterogeneity on Broadband Optical Retardation in Stacked 2D Perovskite Single Crystals

Advanced Functional Materials, EarlyView.
It is shown that interfaces between organic and inorganic layers govern long‐range stacking disorder and in‐plane anisotropy in 2D metal‐halide perovskites. By comparing single‐cation AB‐AB and ordered mixed‐cation ABCD‐ABCD stackings, SCXRD reveals enhanced mosaicity, while optics confirm high birefringence.
Yixuan Dou, Nicholas Nici, Sunhao Liu, Xiaoming Wang, Yanfa Yan, Carla Slebodnick, Lina Quan   +6 more
wiley   +1 more source

Ultrafast Photoexcitation Induced Nonthermal Lattice Expansion in 2D Perovskite

Advanced Science
Light‐induced lattice change of perovskites is found to be critical for device performance. However, the underlying mechanism is still not fully understood.
Xiangyu Chen, Jiakang Zhou, Yunfan Yue, Zhongle Zeng, Xuewen Wang   +4 more
doaj   +1 more source

2W/nm Peak-power All-Fiber Supercontinuum Source and its Application to the Characterization of Periodically Poled Nonlinear Crystals

, 2007
We demonstrate a uniform high spectral brightness and peak power density all-fiber supercontinuum source. The source consists of a nanosecond Ytterbium fiber laser and an optimal length PCF producing a continuum with a peak power density of 2 W/nm and ...
B.A. Cumberland, Demircan, Dudley, Dudley, Dunsby, Fei, Genty, Hsiung, J.C. Travers, J.R. Taylor, Jones, Knight, Kudlinski, R.E. Kennedy, Rakich, Ranka, S.V. Popov, Travers, Wadsworth   +18 more
core   +1 more source

Electron–Matter Interactions During Electron Beam Nanopatterning

Advanced Functional Materials, EarlyView.
This article reviews the electron–matter interactions important to nanopatterning with electron beam lithography (EBL). Electron–matter interactions, including secondary electron generation routes, polymer radiolysis, and electron beam induced charging, are discussed.
Camila Faccini de Lima, Prathiba Thamizhavel, Taylor J. Woehl   +2 more
wiley   +1 more source

Direct femtosecond pulse compression with miniature-sized Bragg cholesteric liquid crystal

, 2013
Direct compression of femtosecond optical pulses from a Ti:sapphire laser oscillator was realized with a cholesteric liquid crystal acting as a nonlinear 1D periodic Bragg grating. With a 6-um thick sample, the pulse duration could be compressed from 100
Chigrinov, Vladimir G., Fu, Shenhe, Khoo, Iam Choon, Liu, Yikun, Song, Liyan, Zhou, Jianying   +5 more
core   +2 more sources

Overcoming the Stability Issue for Hydrophobic Hole Transporting Layers Utilized in Tin‐Lead Perovskite and Tandem Solar Cells

Advanced Functional Materials, EarlyView.
A non‐annealed process is developed for non‐PEDOT:PSS inverted tin‐lead perovskite solar cells to attain PCE 22.67% for the PTAA‐based device. When PTAA is applied in an all‐perovskite tandem solar cell, a record efficiency of 28.14% is obtained with great stability for the efficiency maintaining 96% of its original value for 500 h under one‐sun ...
Chun‐Hsiao Kuan, Xianyuan Jiang, Qilin Zhou, Xin Wen, Sung‐Fu Hung, Hsin‐Lung Chen, Yun‐Sheng Shih, Sudhakar Narra, Mingyu Ma, Jau‐Wern Chiou, Jhih‐Min Lin, Yi Hou, Eric Wei‐Guang Diau   +12 more
wiley   +1 more source

Design of an Optimized Terahertz Time-Domain Spectroscopy System Pumped by a 30 W Yb:KGW Source at a 100 kHz Repetition Rate with 245 fs Pulse Duration

Applied Sciences
Ytterbium laser sources are state-of-the-art systems that are increasingly replacing Ti:Sapphire lasers in most applications requiring high repetition rate pulse trains.
Lennart Hirsch, Dionysis Adamou, Daniele Faccio, Marco Peccianti, Matteo Clerici   +4 more
doaj   +1 more source

Large-area fabrication of low- and high-spatial-frequency laser-induced periodic surface structures on carbon fibers

, 2018
The formation and properties of laser-induced periodic surface structures (LIPSS) were investigated on carbon fibers under irradiation of fs-laser pulses characterized by a pulse duration $\tau$ = 300 fs and a laser wavelength $\lambda$ = 1025 nm.
Boehm, Anne V., Bonse, Jörn, Büttner, Tobias N., Gnecco, Enrico, Gräf, Stephan, Kunz, Clemens, Müller, Frank A., Naumann, Björn, Neumann, Christof, Turchanin, Andrey   +9 more
core   +1 more source

Laser‐Microscribed Glass Enables Surface‐Microfluidics‐Facilitated, Affordable, Rapid Cancer Diagnosis

Advanced Functional Materials, EarlyView.
A transparent, laser‐microscribed glass platform enables cancer diagnosis within 1 h—much faster than histology, which takes days, and free from the chemical or contrast risks of MRI or CT scans. The antibody‐functionalized rough glass surface captures viable cancer cells directly from suspension, allowing instant optical readout and offering a rapid ...
Anish Pal, Snehasis Mishra, Arani Mukhopadhyay, Ilias Papailias, Atique U. Ahmed, Constantine M. Megaridis   +5 more
wiley   +1 more source