Results 21 to 30 of about 113,253 (318)

Acoustic Vibration Modes of Gold–Silver Core–Shell Nanoparticles

Chemosensors, 2022
Bimetallic Au/Ag core–shell cuboid nanoparticles (NPs) exhibit a complex plasmonic response dominated by a dipolar longitudinal mode and higher-order transverse modes in the near-UV, which may be exploited for a range of applications.
Tadele Orbula Otomalo, Lorenzo Di Mario, Cyrille Hamon, Doru Constantin, Francesco Toschi, Khanh-Van Do, Vincent Juvé, Pascal Ruello, Patrick O’Keeffe, Daniele Catone, Alessandra Paladini, Bruno Palpant   +11 more
doaj   +1 more source

Ultrafast Photodynamics of Glucose [PDF]

The Journal of Physical Chemistry B, 2017
We have investigated the photodynamics of $β$-D-glucose employing our field-induced surface hopping method (FISH), which allows us to simulate the coupled electron-nuclear dynamics, including explicitly nonadiabatic effects and light-induced excitation.
Jens Petersen, Joachim O. Lindner, Roland Mitrić   +2 more
openaire   +3 more sources

5D data storage by ultrafast laser nanostructuring in glass [PDF]

, 2013
The high-density five dimensional data storage with ultrafast laser writing is demonstrated. The text file is recorded by polarization controlled self-assembled form birefringence and retrieved in glass opening the era of unlimited lifetime data ...
Kazansky, P.G., Jingyu Zhang, Mindaugas Gecevičius, Beresna, M., Gecevičius, M., Peter G. Kazansky, Zhang, J., Martynas Beresna   +7 more
core   +1 more source

Broadband regenerative amplifier based on Ho:CALGO at 2.1 μm [PDF]

EPJ Web of Conferences
We present a broadband Ho:CALGO regenerative amplifier operating at 2.1 μm, delivering a pulse energy of 342 μJ at 1 kHz with a spectral bandwidth of 5 nm, supporting sub-ps pulse duration.
Suzuki Anna, Ahmed Shahwar, Wang Yicheng, Tomilov Sergei, Saraceno Clara J.   +4 more
doaj   +1 more source

Dynamic Microscopy Study of Ultrafast Charge Transfer in a Hybrid P3HT/Hyperbranched CdSe Nanoparticle Blend for Photovoltaics [PDF]

, 2012
We present a spectroscopic investigation on a new hyperbranched cadmium selenide nanocrystals (CdSe NC)/poly(3-hexylthiophene) (P3HT) blend, a potentially good active component in hybrid photovoltaics. Combined ultrafast transient absorption spectroscopy
Polli, Dario, F. Tassone, MarianoBiasiucci, Giuseppe Gigli, M. Biasiucci, G. Gigli, Mariano Biasiucci, Francesco Scotognella, Lanzani, Guglielmo, Francesco Tassone, Gigli, Giuseppe, Guglielmo Lanzani, Dario Polli, Biasucci, Mariano, Mastria, Rosanna, R. Mastria, Giulia Grancini, Tassone, Francesco, Grancini, Giulia, Scotognella, Francesco, Rosanna Mastria   +20 more
core   +1 more source

Dual-beam multipass cell compression for time-resolved femtosecond spectroscopy setups [PDF]

EPJ Web of Conferences
We present a dual-beam single multi-pass cell compressor designed for applications in time-resolved pump-probe spectroscopy. A single MPC simultaneously compresses two beams with different pulse energies to the same pulse duration, allowing for ...
Omar Alan, Kassai Boldizsar, Hoffmann Martin, Saraceno Clara J.   +3 more
doaj   +1 more source

An ultrafast algorithm for ultrafast time-resolved coherent Raman spectroscopy [PDF]

Communications Chemistry
Time-resolved coherent Raman spectroscopy (CRS) is a powerful non-linear optical technique for quantitative, in-situ analysis of chemically reacting flows, offering unparalleled accuracy and exceptional spatiotemporal resolution. Its application to large polyatomic molecules, crucial for understanding reaction dynamics, has thus far been limited by the
Francesco Mazza, Dirk van den Bekerom
openaire   +3 more sources

Nonlinear ultrafast acoustics at the nano scale [PDF]

, 2015
Pulsed femtosecond lasers can generate acoustic pulses propagating in solids while displaying either diffraction, attenuation, nonlinearity and/or dispersion.
Debye Institute, Van Capel, P. J S, Dijkhuis, J. I., Dep Natuurkunde, Sub Physics of Condensed Matters begr, Sub Practicum, Péronne, E., Atom optics and ultrafast dynamics   +7 more
core   +1 more source

Tunable Near and Mid-Infrared (1.3–5 µm) Picosecond Pulsed Optical Vortex Parametric Oscillator

Photonics
In this paper, we present a picosecond pulsed, synchronously pumped optical parametric oscillator producing vortex beam output with tunable wavelengths in the near- to mid-infrared range.
Mailikeguli Aihemaiti, Dulikun Sulaiman, Dana Jashaner, Yuxia Zhou, Xining Yang, Zhaoxue Li, Bilali Muhutijiang, Taximaiti Yusufu   +7 more
doaj   +1 more source

Ultrafast Resolution-Enhanced Digital Optical Frequency Comb-Based BOTDA with Pump Pulse Array Coding

Sensors, 2020
In this letter, a resolution enhancement and signal-to-noise ratio (SNR) improvement scheme for digital optical frequency comb (DOFC)-based Brillouin optical time-domain analysis (BOTDA) ultrafast distributed sensing employing a pump pulse array is ...
Yichang Wu, Chengkun Yang, Jingshun Pan, Qi Sui, Dawei Wang   +4 more
doaj   +1 more source