Results 91 to 100 of about 23,841 (308)

Nanosecond laser annealing to decrease the damage of picosecond laser ablation of anti-reflection layers on textured silicon surfaces [PDF]

, 2012
Paper 84730DThis work discusses the impact of laser annealing on a picosecond laser ablation process of anti-reflection layers on damage etched and random pyramid textured silicon wafers.
Preu, Ralf, Jan-Frederik Nekarda, Brand, Andreas, Knorz, Annerose, Nekarda, Jan F., Ralf Zeidler, Andreas A. Brand, Ralf Preu, Annerose Knorz, Zeidler, Ralf   +9 more
core   +1 more source

Non-Ideal Hall MHD Rayleigh–Taylor Instability in Plasma Induced by Nanosecond and Intense Femtosecond Laser Pulses

Plasma
A pioneering detailed comparative study of the dynamics of plasma flows generated by high-power nanosecond and high-intensity femtosecond laser pulses with similar fluences of up to 3×104 J/cm2 is presented. The experiments were conducted on the petawatt
Roman S. Zemskov, Maxim V. Barkov, Evgeniy S. Blinov, Konstantin F. Burdonov, Vladislav N. Ginzburg, Anton A. Kochetkov, Aleksandr V. Kotov, Alexey A. Kuzmin, Sergey E. Perevalov, Il’ya A. Shaikin, Sergey E. Stukachev, Ivan V. Yakovlev, Alexander A. Soloviev, Andrey A. Shaykin, Efim A. Khazanov, Julien Fuchs, Mikhail V. Starodubtsev   +16 more
doaj   +1 more source

Laser Micromachining and Micro-Patterning with a Nanosecond UV Laser [PDF]

, 2012
Xianghua Wang1, Giuseppe Yickhong Mak2 and Hoi Wai Choi2 1Key Lab of Special Display Technology, Ministry of Education, National Engineering Lab of Special Display Technology, National Key Lab of Advanced Display Technology, Academy of Photoelectric Technology, Hefei University of Technology, Hefei, 2Department of Electrical and Electronic Engineering,
Xianghua Wang, Giuseppe Yickhong, Hoi Wai   +2 more
openaire   +1 more source

Self‐Assembled Calcite Architectures for Programmable Information Storage

Advanced Materials Technologies, Volume 11, Issue 16, 21 August 2026.
Programmable biomineralization enables the formation of 3D calcite architectures that encode information through spatially defined refractive‐index modulations. Data are written via laser‐directed mineralization, stored in stable voxelized mineral structures, and retrieved non‐destructively through optical diffraction, offering a pathway toward ultra ...
Congrui Jin, Yong Huang, Mehdi Ranjkesh Rashteh Roudi   +2 more
wiley   +1 more source

Effects of Laser Pulse Duration on Pulse Laser Micro Polishing [PDF]

, 2012
Pulsed laser micro polishing (PL?P) has been shown to be an effective method of polishing micro metallic parts whose surface roughness can approach the feature size.
Li, Xiaochun, Ma, Chao, Duffie, Neil A., Pfefferkorn, Frank E., Vadali, Madhu   +4 more
core   +1 more source

321W average power, 1GHz, 20ps 1060nm pulsed fiber MOPA source [PDF]

, 2005
Pulses from a gain-switched laser diode were amplified in a fiber MOPA system to produce in excess of 320W of average power in 20ps pulses at 1GHz repetition rate at ...
M. Ibsen, Nilsson, J., Y. Jeong, Dupriez, P., Ibsen, M., Piper, A., Richardson, D.J., M.N. Zervas, Malinowski, A., L.M.B. Hickey, J.K. Sahu, A. Piper, Jeong, Y., Hickey, L.M.B., J. Nilsson, D.J. Richardson, P. Dupriez, Sahu, J.K., A. Malinowski, Zervas, M.N.   +19 more
core   +2 more sources

Upscaling Pulsed Laser Fragmentation in Liquids by Advanced Free‐Flow Setups

Advanced Materials Technologies, EarlyView.
Advanced flow setups providing thin colloid films are introduced to upscale pulsed laser fragmentation in liquids for sustainable nanoparticle synthesis. Their potential is demonstrated by yielding remarkably small ZnO nanoparticles of <7 nm. Numerical simulations complement the study, revealing that the superior performance can be attributed to ...
Jan Lino Kricke, Zongwen Fu, Sebastian Burgmann, Uwe Janoske, Carlos Doñate‐Buendía, Bilal Gökce   +5 more
wiley   +1 more source

Saffman-Taylor fingering in nanosecond pulse laser ablating bulk metallic glass in water [PDF]

, 2012
We report for the first time the nanosecond pulse laser ablation of a typical Zr-based (Vit 1) bulk metallic glass in a water environment, paying attention to the target surface morphology after ablation.
Liu Y, Yang GW, 蒋敏强, 戴兰宏, Chen JH, mqjiang@imech.ac.cn, Guan YJ   +6 more
core   +1 more source

LASER DYES PHOTOCHEMISTRY : PICOSECOND AND NANOSECOND LASER STUDY

Le Journal de Physique Colloques, 1987
Photophysical and photochemical properties of laser dyes (rhodamines and merocyanines) are studied through nanosecond and picosecond laser spectroscopy. The polarity of the dye molecule is one of the most important parameters. In the case of merocyanines, the dye solubility, the red or blue shift of the ground state S0 absorption spectrum respectively ...
Meyer, M., Mialocq, J.
openaire   +1 more source

Omnidirectional Ultra‐Broadband Cu/TiO2 Metasurface Absorbers for High‐Efficiency Solar Thermal Conversion and Photothermal Plasmon‐Driven Catalysis

Advanced Optical Materials, EarlyView.
Metasurface shows selective solar–thermal energy conversion with high‐activity solar/laser‐driven chemistry. The breakthrough is co‐designing broadband FP‐cavity + plasmonic LSPR/SLR resonances in an ultra‐thin metamaterial so that it not only harvests the most efficient proportion of solar radiation but also suppresses mid and IR emissivity. Moreover,
Samira Mehrabi, HaoYu Zhang, Narendra Chaulagain, Edgar Acosta, Nazir P. Kherani   +4 more
wiley   +1 more source