Results 31 to 40 of about 21,546 (202)

Video recording true single-photon double-slit interference [PDF]

, 2016
As normally used, no commercially available camera has a low-enough dark noise to directly produce video recordings of double-slit interference at the photon-by-photon level, because readout noise significantly contaminates or overwhelms the signal.
Aspect Alain, Beck M., Feynman R. P., Gabriel C. Spalding, Miles J. Padgett, Prutchi D., Reuben S. Aspden, Schroeder Daniel V., Taylor G. I., Zurek W. H.   +9 more
core   +1 more source

Photoluminescence Turn‐On Method to Determine the Kinetics of Thermally Activated Delayed Fluorescence Materials

Advanced Physics Research, EarlyView.
Thermally Activated Delayed Fluorescence (TADF) is widely exploited to achieve high‐efficiency OLEDs. TADF Emitters are normally investigated with transient photoluminescence (PL), which requires the PL to be detected over multiple orders of magnitude in time and intensity.
Stefan Diesing, Kou Yoshida, Eli Zysman‐Colman, Ifor D.W. Samuel   +3 more
wiley   +1 more source

Influence of surrounding gas, composition and pressure on plasma plume dynamics of nanosecond pulsed laser-induced aluminum plasmas

AIP Advances, 2015
In this article, we present a comprehensive study of the plume dynamics of plasmas generated by laser ablation of an aluminum target. The effect of both ambient gas composition (helium, nitrogen or argon) and pressure (from ∼5 × 10−7 Torr up to ...
Mahmoud S. Dawood, Ahmad Hamdan, Joëlle Margot   +2 more
doaj   +1 more source

Time-Resolved Imaging of Femtosecond Laser-Induced Plasma Expansion in a Nitrogen Microjet

Applied Sciences, 2022
We report on the study of ultrafast laser-induced plasma expansion dynamics in a gas microjet. To this purpose, we focused femtosecond laser pulses on a nitrogen jet produced through a homemade De Laval micronozzle.
Anna Gabriella Ciriolo, Rebeca Martínez Vázquez, Gabriele Crippa, Michele Devetta, Aldo Frezzotti, Daniela Comelli, Gianluca Valentini, Roberto Osellame, Caterina Vozzi, Salvatore Stagira   +9 more
doaj   +1 more source

Gas gun shock experiments with single-pulse x-ray phase contrast imaging and diffraction at the Advanced Photon Source

, 2012
The highly transient nature of shock loading and pronounced microstructure effects on dynamic materials response call for {\it in situ}, temporally and spatially resolved, x-ray-based diagnostics.
B. J. Jensen, Bowden F. P., D. E. Hooks, J. D. Yeager, K. Fezzaa, K. J. Ramos, K. Kwiatkowski, Kwiatkowski K., S. N. Luo, T. Shimada   +9 more
core   +1 more source

Precision preparation of strings of trapped neutral atoms [PDF]

, 2006
We have recently demonstrated the creation of regular strings of neutral caesium atoms in a standing wave optical dipole trap using optical tweezers [Y. Miroshnychenko et al., Nature, in press (2006)].
, A Rauschenbeutel, Alt W, D Meschede, Feynman R P, I Dotsenko, L Förster, M Khudaverdyan, Miroshnychenko Y, Miroshnychenko Y Alt W Dotsenko I Förster L Khudaverdyan M Meschede D Reick S Rauschenbeutel A, Schrader D, W Alt, Y Miroshnychenko   +12 more
core   +2 more sources

Advances in Position‐Momentum Entanglement: A Versatile Tool for Quantum Technologies

Laser &Photonics Reviews, EarlyView.
Position–momentum entanglement constitutes a high‐dimensional continuous‐variable resource in quantum optics. Recent advances in its generation, characterization, and control are reviewed, with emphasis on spontaneous parametric down‐conversion and modern measurement techniques.
Satyajeet Patil, Rajshree Swarnkar, Jonas L. Moos, Sebastian Töpfer, Sergio Tovar‐Pérez, Jorge Fuenzalida, Markus Gräfe   +6 more
wiley   +1 more source

ArCo: the Italian Cultural Heritage Knowledge Graph

, 2019
ArCo is the Italian Cultural Heritage knowledge graph, consisting of a network of seven vocabularies and 169 million triples about 820 thousand cultural entities.
A Gangemi, A Isaac, A Kilgarriff, C Aart van, C Dijkshoorn, E Blomqvist, E Blomqvist, E Hyvönen, G Lodi, M Daquino, M Doerr, P Szekely, PA Bonatti, V Boer de, V Presutti   +14 more
core   +1 more source

Investigating Spatial‐Temporal Optical Emission Spectroscopy of Unstable Positive Leaders in Long Sparks Under Atmospheric Pressure

High Voltage, EarlyView.
ABSTRACT This study explores exciting state species and reaction pathways in positive leaders to better understand the breakdown mechanisms of long air gap discharges and natural lightning. Emission spectra from an unstable positive leader in a 1 m rod‐plate air gap under switching impulse voltages were observed, spanning 300–800 nm.
Hengxin He, Yubin Huang, Wanxia Zhang, Chang Liu, Xiuyuan Yao, Yu Ying, Weijiang Chen   +6 more
wiley   +1 more source

Gravitas, Winter 2007 [PDF]

, 2007
ICCD_newsletter_Winter_2008_PDF.pdf: 250 downloads, before Oct.
Institute for Community College Development
core   +2 more sources