Results 31 to 40 of about 369,402 (159)

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

Polarization-resolved terahertz time-domain imaging enabled by single pixel imaging

APL Photonics
This work presents an efficient far-field single pixel imaging (SPI) system adapted to broadband, pulsed terahertz (THz) detection to successfully reconstruct polarization-resolved hyperspectral THz images of a polarizing sample of varying thickness ...
Seth N. Lowry, Lucas E. Bergen, Marcus J. Herbert, Ian D. Hartley, Matthew E. Reid, Christopher M. Collier   +5 more
doaj   +1 more source

Investigations of ultrafast dynamics in electronically excited alkylbenzenes

EPJ Web of Conferences, 2013
We investigate ultrafast dynamics in electronically excited states of some typical alkylbenzenes by time-resolved two-colour four wave mixing and velocity map imaging as complementary methods.
Maksyutenko P., Sych Y., Radi P., Gerber T., Liu Y., Knopp G.   +5 more
doaj   +1 more source

Gated SPAD Arrays for Single-Photon Time-Resolved Imaging and Spectroscopy

IEEE Photonics Journal, 2019
In this paper, we present the architecture and the experimental characterization of an improved version of a previously developed 32 × 32 Single Photon Avalanche Diodes (SPADs) and Time to Digital Converters (TDCs) array, and two new
Enrico Conca, Iris Cusini, Fabio Severini, Rudi Lussana, Franco Zappa, Federica Villa   +5 more
doaj   +1 more source

Improving the Imaging Quality of Ghost Imaging Lidar via Sparsity Constraint by Time-Resolved Technique

Remote Sensing, 2016
Ghost imaging via sparsity constraint (GISC)—which is developing into a new staring imaging lidar—can obtain both the range information and spatial distribution of a remote target with the use of the measurements below the Nyquist limit.
Wenlin Gong, Hong Yu, Chengqiang Zhao, Zunwang Bo, Mingliang Chen, Wendong Xu   +5 more
doaj   +1 more source

Investigating Origins of FLIm Contrast in Atherosclerotic Lesions Using Combined FLIm-Raman Spectroscopy

Frontiers in Cardiovascular Medicine, 2020
Background: Fluorescence lifetime imaging (FLIm) is a spectroscopic imaging technique able to characterize the composition of luminal surface of arterial vessels.
Julien Bec, Julien Bec, Julien Bec, Tanveer Ahmed Shaik, Christoph Krafft, Thomas W. Bocklitz, Thomas W. Bocklitz, Alba Alfonso-Garcia, Kenneth B. Margulies, Jürgen Popp, Jürgen Popp, Laura Marcu   +11 more
doaj   +1 more source

Ultrafast F2− photodissociation by intense laser pulses: a time-resolved fragment imaging study [PDF]

EPJ Web of Conferences, 2019
We present time-resolved coincidence imaging of F2− photodissociation by 400nm and intense 800nm ultrafast pulses. Coincidence fragment imaging reveals parallel and perpendicular single photon dissociation on 2Σg+ and 2πg states, and additional intense ...
Shahi Abhishek, Albeck Yishai, Strasser Daniel   +2 more
doaj   +1 more source

Experimental time-resolved imaging by multiplexed ptychography

Optics Express, 2019
A recently proposed technique introduced a time-resolved option of fast transient non-repetitive events to ptychographic microscopy. This technique, termed time-resolved imaging by multiplexed ptychography (TIMP), is based on algorithmic reconstruction of multiple frames from data recorded in a single camera acquisition of a single-shot ptychographic ...
Wengrowicz, Omri, Peleg, Or, Loevsky, Barry, BING KUAN CHEN, Ilan Haham, Gil, U. SATYA SAINADH, Cohen, Oren   +6 more
openaire   +3 more sources

Techniques and Advances in Ultrafast Photography

Advanced Photonics Research
Ultrafast events, from the rapid propagation of shock waves to molecular vibrations and electron dynamics, can unfold on timescales as short as femtoseconds.
Chen Huang, Xin Zhang, Renjie Han, Jiaoyu Fan, Hui Jiang, Yiwen Zhang, Jinghua Yu, Jiamin Wang, Yi Chen, Junjie Sun, Fei Chen   +10 more
doaj   +1 more source

Characterization of SPAD Array for Multifocal High-Content Screening Applications

Photonics, 2016
Current instruments used to detect specific protein-protein interactions in live cells for applications in high-content screening (HCS) are limited by the time required to measure the lifetime.
Anthony Tsikouras, Pietro Peronio, Ivan Rech, Nehad Hirmiz, M. Jamal Deen, Qiyin Fang   +5 more
doaj   +1 more source