Results 81 to 90 of about 57,251 (307)

Picosecond ionization dynamics in femtosecond filaments at high pressures [PDF]

, 2017
We investigate the plasma dynamics inside a femtosecond-pulse-induced filament generated in an argon gas for a wide range of pressures up to 60 bar. At higher pressures, we observe ionization immediately following a pulse, with up to a threefold increase
Gaeta, AL, Gao, X, Kapteyn, HC, Levis, RJ, Murnane, MM, Patwardhan, G, Popmintchev, T, Romanov, DA, Schrauth, S, Zhu, D   +9 more
core   +1 more source

Counterintuitive Fluorescence Blue Shift in Symmetry Breaking Dicationic Bis(indolium) with Two‐Photon Absorption Properties for NIR Living Cell Imaging

Advanced Materials, EarlyView.
Highly water‐soluble dicationic bis(indolium) dyes have been prepared, showing excellent two‐photon absorption and light emission. Their fluorescence behavior discloses an unusual increasing blue shift with increasing solvent polarity, which, in parallel, is beneficial for enhanced detection in biological media.
Carlos Benitez‐Martin, Jose M. Marin‐Beloqui, Juan T. López Navarrete, Juan Casado, Francisco Najera, Ezequiel Perez‐Inestrosa   +5 more
wiley   +1 more source

Lasers in tattoo and pigmentation control: role of the PicoSure® laser system

Medical Devices: Evidence and Research, 2016
Richard Torbeck,1 Richard Bankowski,2 Sarah Henize,3 Nazanin Saedi,11Department of Dermatology and Cutaneous Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, 2Cynosure, Inc, Westford, MA, 3Huron Consulting Group ...
Torbeck R, Bankowski R, Henize S, Saedi N   +3 more
doaj  

Theoretical Study of Ultra-Fast Laser Lift-Off of Carbon Nanotube-Integrated Polyimide Films

Nanomaterials
In this paper, ultra-fast laser lift-off (LLO) of carbon nanotube (CNT)-integrated polyimide film (PI) was investigated by different laser burst mode and pulse intervals using the two-temperature model. By comparing the temperature field distributions of
Run Bai, Yachong Xu, Junwei Fu, Zhenzhen Sun, Yanbo Wang, Rui Yang, Zijuan Han, Fanfan Wang, Boyuan Cai   +8 more
doaj   +1 more source

A Common-Path Interferometer for Time-Resolved and Shot-Noise-Limited Detection of Single Nanoparticles [PDF]

, 2006
We give a detailed description of a novel method for time-resolved experiments on single non-luminescent nanoparticles. The method is based on the combination of pump-probe spectroscopy and a common-path interferometer.
Lippitz, Markus, Orrit, Michel, Stolwijk, Daniel, van Dijk, Meindert A.   +3 more
core   +3 more sources

Azaporphyrinoid‐Based Photo‐ and Electroactive Architectures for Advanced Functional Materials

Advanced Materials, EarlyView.
A long‐standing collaboration between the Torres and Guldi groups has yielded diverse azaporphyrinoid‐based donor‐acceptor nanohybrids with promising applications in solar energy conversion. This conspectus highlights key molecular platforms and structure‐function relationships that govern light and charge management, supporting the rational design of ...
Jorge Labella, Kobra Azizi, Dirk M. Guldi, Tomás Torres   +3 more
wiley   +1 more source

Clustomesogen Showing Sub‐Zero Liquid Crystal Properties: Supramolecular Assembly Between Cs2[Mo6Ii8(OCOC2F5)6] and Hexaethylenoxide Containing Mesogenic Dimers

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, Jeanne Rebours, Zoulikha Zerrouqi, Noée Dumait, Maria Amela‐Cortes, Nikolai Scheuring, Sara Simonovska, Sebastian Marino, Max Ebert, Stéphane Cordier, Sabine Laschat, Yann Molard   +11 more
wiley   +1 more source

Strongly driven quantum pendulum of the OCS molecule

, 2014
We demonstrate and analyze a strongly driven quantum pendulum in the angular motion of stateselected and laser aligned OCS molecules. Raman-couplings during the rising edge of a 50-picosecond laser pulse create a wave packet of pendular states, which ...
González-Férez, R., Kienitz, J. S., Küpper, J., Mullins, T., Müller, N. L. M., Omiste, J. J., Stapelfeldt, H., Trippel, S.   +7 more
core   +1 more source

Generation of optical quality structured surfaces on borosilicate glass using 515nm picosecond laser pulses and a liquid-crystal-based 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.
Hand, Duncan Paul, Wlodarczyk, Krystian Lukasz   +1 more
core   +1 more source

When Poor Exciton Dissociation Limits Photocurrents in Organic Solar Cells: Why Low Offset Non‐Fullerene Acceptor Blends Can't Be Efficient

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