scholarly journals Ultrafast Imaging at All Frequencies

Physics ◽  
2020 ◽  
Vol 13 ◽  
Author(s):  
Marric Stephens
Keyword(s):  
Ultrafast Imaging

Ultrafast Imaging of Rapid Alloy Solidification in Al-Cu Thin Films

2012 ◽  
Vol 18 (S2) ◽  
pp. 602-603 ◽  
Author(s):  
J.T. McKeown ◽  
T. LaGrange ◽  
B.W. Reed ◽  
G.H. Campbell ◽  
A. Kulovits ◽  
...  
Keyword(s):  
Thin Films ◽  
Alloy Solidification ◽  
Ultrafast Imaging

Extended abstract of a paper presented at Microscopy and Microanalysis 2012 in Phoenix, Arizona, USA, July 29 – August 2, 2012.

scholarly journals Effect of Ultrafast Imaging on Shear Wave Visualization and Characterization: An Experimental and Computational Study in a Pediatric Ventricular Model

2017 ◽  
Vol 7 (8) ◽  
pp. 840 ◽  
Author(s):  
Annette Caenen ◽  
Mathieu Pernot ◽  
Ingvild Kinn Ekroll ◽  
Darya Shcherbakova ◽  
Luc Mertens ◽  
...  
Keyword(s):  
Shear Wave ◽  
Computational Study ◽  
Ultrafast Imaging

scholarly journals The virtual frame technique: ultrafast imaging with any camera

2019 ◽  
Vol 27 (6) ◽  
pp. 8112 ◽  
Author(s):  
S. Dillavou ◽  
S. M. Rubinstein ◽  
J. M. Kolinski
Keyword(s):  
Ultrafast Imaging

scholarly journals Vortex and half-vortex dynamics in a nonlinear spinor quantum fluid

2015 ◽  
Vol 1 (11) ◽  
pp. e1500807 ◽  
Author(s):  
Lorenzo Dominici ◽  
Galbadrakh Dagvadorj ◽  
Jonathan M. Fellows ◽  
Dario Ballarini ◽  
Milena De Giorgi ◽  
...  
Keyword(s):  
Vortex Dynamics ◽  
Strong Nonlinearity ◽  
Phase Detection ◽  
Ultrafast Imaging ◽  
Half Integer ◽  
Fundamental Particles ◽  
Subatomic Particles ◽  
Phase Singularities ◽  
The Moment ◽  
Bose Einstein

Vortices are archetypal objects that recur in the universe across the scale of complexity, from subatomic particles to galaxies and black holes. Their appearance is connected with spontaneous symmetry breaking and phase transitions. In Bose-Einstein condensates and superfluids, vortices are both point-like and quantized quasiparticles. We use a two-dimensional (2D) fluid of polaritons, bosonic particles constituted by hybrid photonic and electronic oscillations, to study quantum vortex dynamics. Polaritons benefit from easiness of wave function phase detection, a spinor nature sustaining half-integer vorticity, strong nonlinearity, and tuning of the background disorder. We can directly generate by resonant pulsed excitations a polariton condensate carrying either a full or half-integer vortex as initial condition and follow their coherent evolution using ultrafast imaging on the picosecond scale. The observations highlight a rich phenomenology, such as the spiraling of the half-vortex and the joint path of the twin charges of a full vortex, until the moment of their splitting. Furthermore, we observe the ordered branching into newly generated secondary couples, associated with the breaking of radial and azimuthal symmetries. This allows us to devise the interplay of nonlinearity and sample disorder in shaping the fluid and driving the vortex dynamics. In addition, our observations suggest that phase singularities may be seen as fundamental particles whose quantized events span from pair creation and recombination to 2D+t topological vortex strings.

Ultrafast Imaging and the Phase Problem for Inelastic X-Ray Scattering

2010 ◽  
Vol 22 (10) ◽  
pp. 1141-1147 ◽  
Author(s):  
Peter Abbamonte ◽  
Gerard C. L. Wong ◽  
David G. Cahill ◽  
James P. Reed ◽  
Robert H. Coridan ◽  
...  
Keyword(s):  
Phase Problem ◽  
X Ray ◽  
Ultrafast Imaging ◽  
X Ray Scattering ◽  
Ray Scattering

Ultrafast imaging of nanosecond pulse x-ray simulators

2008 ◽  
Author(s):  
Graham W. Smith ◽  
David S. George ◽  
David Harrison ◽  
Stephen Hill ◽  
Robert J. Hohlfelder ◽  
...  
Keyword(s):  
Nanosecond Pulse ◽  
X Ray ◽  
Ultrafast Imaging

Ultrafast Imaging of Carrier Cooling in Metal Halide Perovskite Thin Films

Nano Letters ◽  
2018 ◽  
Vol 18 (2) ◽  
pp. 1044-1048 ◽  
Author(s):  
Sanghee Nah ◽  
Boris M. Spokoyny ◽  
Chan M. M. Soe ◽  
Constantinos C. Stoumpos ◽  
Mercouri G. Kanatzidis ◽  
...  
Keyword(s):  
Thin Films ◽  
Metal Halide ◽  
Ultrafast Imaging ◽  
Metal Halide Perovskite ◽  
Halide Perovskite
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