Results 41 to 50 of about 1,243,301 (300)
MicromachinesWe report on fabricating planoconcave lenses using a picosecond 355 nm wavelength laser and a CO2 laser. We also report the fabrication of the planoconvex microlens array on fused silica by patterned micromachining using a picosecond laser and reshaping ...
Narayana R. Gottumukkala +2 more
doaj +1 more source
Towards shaping picosecond strain pulses via magnetostrictive transducers
Photoacoustics, 2023 Using time-resolved x-ray diffraction, we demonstrate the manipulation of the picosecond strain response of a metallic heterostructure consisting of a dysprosium (Dy) transducer and a niobium (Nb) detection layer by an external magnetic field. We utilize
Maximilian Mattern +4 more
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Laser damage growth with picosecond pulses [PDF]
Optics Letters, 2016 Laser-induced damage growth has been investigated in the subpicosecond regime at 1030 nm. We have herein studied the growth of damage sites initiated on a high-reflective dielectric coating under subsequent laser irradiations at a constant fluence. We show through an experimental approach that growth can be triggered for fluences as low as 50% of the ...
Sozet, Martin +5 more
openaire +3 more sources
Advanced Materials, EarlyView.Associating a red‐NIR phosphorescent octahedral hexanuclear molybdenum cluster compound with hexaethyleneoxide chains bearing mesogenic units on both ends leads to an emissive hybrid liquid crystal showing mesomorphism on a very unusual temperature range down to −25°C.
Killiann Heinz +11 more
wiley +1 more source
Shaping the surface of Borofloat 33 glass with ultrashort laser pulses and a spatial light modulator [PDF]
, 2012 Liquid-crystal-based spatial light modulators (LC-SLMs) are electrically programmable devices which allow us to modulate the phase and amplitude of the linear-polarised light.
Wlodarczyk, Krystian Lukasz +2 more
core +1 more source
Advanced Materials, EarlyView.The energetic offset between the donor and the acceptor components in organic photoactive layers is central to the tradeoff between photovoltage and photocurrent losses. This Perspective covers the most important issues surrounding this topic in non‐fullerene acceptor blends, from the difficulty of accurately determining state energies and driving ...
Dieter Neher, Manasi Pranav
wiley +1 more source
Sub-Picosecond Micromachining of Monocrystalline Silicon for Solar Cell Manufacturing
Applied Sciences, 2020 In this study a prototype sub-picosecond laser was investigated for cutting and scribing of silicon wafers. The Yb:KYW laser used for this investigation, unlike ultrashort systems used previously, generates pulses of 650 fs, i.e., between the pico and ...
Katarzyna Garasz, Marek Kocik
doaj +1 more source
Laser Removal of Cosmetic Eyebrow Tattoos with a Picosecond Laser
Dermato, 2023 This current retrospective study, including 98 patients aged 21 to 71 years, aims to assess the safety and the efficiency of a picosecond 755 nm/532 nm laser in the removal of complex eyebrows tattoos. Patients were treated with a picosecond laser at 755
Candice Menozzi-Smarrito +1 more
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Successful Treatment of Freckles Using a 730-nm Picosecond Laser: A Prospective Study. [PDF]
Clin Cosmet Investig DermatolYuqing Huang,1,* Xing Liu,1,* Mengli Zhang,1 Tong Lin2 1Department of Cosmetic Laser Surgery, Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, Nanjing, Jiangsu, People’s Republic of China; 2Jiangsu Key
Huang Y, Liu X, Zhang M, Lin T.
europepmc +2 more sources
Picosecond and sub-picosecond pulse generation in semiconductor lasers [PDF]
Journal de Physique III, 1992 Generation of short optical pulses in semiconductor lasers is of practical interest for an increasing number of applications. It is also of fundamental interest because of its tight relation with the field of semiconductor laser dynamics. After an introductory review, we compare the performances of gain-switching, Q-switching and mode-locking ...
Lourtioz, J.-M. +2 more
openaire +1 more source