Results 31 to 40 of about 1,507 (165)

In situ imaging of the dynamics of photo-induced structural phase transition at high pressures by picosecond acoustic interferometry

New Journal of Physics, 2017
Picosecond acoustic interferometry is used to monitor in time the motion of the phase transition boundary between two water ice phases, VII and VI, coexisting at a pressure of 2.15 GPa when compressed in a diamond anvil cell at room temperature.
Maju Kuriakose, Nikolay Chigarev, Samuel Raetz, Alain Bulou, Vincent Tournat, Andreas Zerr, Vitalyi E Gusev   +6 more
doaj   +1 more source

Controlled lasing from active optomechanical resonators [PDF]

, 2014
Planar microcavities with distributed Bragg reflectors (DBRs) host, besides confined optical modes, also mechanical resonances due to stop bands in the phonon dispersion relation of the DBRs.
Akimov, A. V., Bayer, M., Brodbeck, S., Brueggemann, C., Czerniuk, T., Glavin, B. A., Hoefling, S., Kamp, M., Schneider, C., Tepper, J., Yakovlev, D. R.   +10 more
core   +3 more sources

Thin-film optoacoustic transducers for the subcellular Brillouin oscillation imaging of individual biological cells [PDF]

, 2015
Mechanical characterisation and imaging of biological tissue has piqued interest in the applicability to cell and tissue biology. One method, based on detection of Brillouin oscillations, has already lead to demonstrations on biological cells using ...
Audoin, Babilotte, Chen, Culjat, Dehoux, Dehoux, Ducousso, Elzinga, Gadalla, Harley, Heiserman, Hildebrand, Koski, Kundu, Kundu, Lanni, Lekka, Lichtman, Litniewski, Mante, Masanori, Muha, Nawaz, Palombo, Reiß, Rossignol, Sanctuary, Scarcelli, Scarcelli, Smith, Smith, Smith, Theret, Thomsen, Tornaletti, Weiss, Wright, Xiaoyan, Zernike   +38 more
core   +1 more source

Nonlinear Acoustics at GHz Frequencies in a Viscoelastic Fragile Glass Former [PDF]

, 2014
Using a picosecond pump-probe ultrasonic technique, we study the propagation of high-amplitude, laser-generated longitudinal coherent acoustic pulses in the viscoelastic fragile glass former DC704. We observe an increase of almost ten percent in acoustic
Gusev, Vitalyi E., Klieber, Christoph, Nelson, Keith A., Pezeril, Thomas   +3 more
core   +3 more sources

Quantum Electronics [PDF]

, 1980
Contains reports on eight research projects divided into three sections.National Science Foundation (Grant PHY79-09739)Joint Services Electronics Program (Contract DAAG29-78-C-0020)U.S.
Davis, James L., Ezekiel, Shaoul, Fonstad, Clifton G., Hackel, Richard P., Haus, Hermann A., Hemmer, Philip R., Peuse, Bruce W., Sanders, Glen A., Schloss, Robert P., Tench, Richard E., Thomas, John E., Wu, Frederick Y-F.   +11 more
core   +1 more source

Direct Observation of Propagating Gigahertz Coherent Guided Acoustic Phonons in Free Standing Single Copper Nanowires

, 2014
We report on gigahertz acoustic phonon waveguiding in free-standing single copper nanowires studied by femtosecond transient reflectivity measurements.
Amziane A., Bannov N., Belliard L., Bernard Perrin, Bienville T., Boukai A. I., Burgin J., Cardinal M. F., Chang D. E., Chree C., Cyril Jean, Feng X. L., Hirsch L. R., Huang X., Jais P. M., Juvé V., Kelf T. A., Khelfa H., Laurent Belliard, Ledbetter H., Liang H., Lin K.-H., Loïc Becerra, Maier S. A., Major T. A., Major T. A., Mante P.-A., Marco Cassinelli, Maria Eugenia Toimil-Molares, Mingo N., Molares M. T., Mounier D., Novo C., Olivier Thomas, Pochhammer L., Ristow O., Royer D., Silk M., Siry P., Staleva H., Staleva H., Staleva H., Thomas W. Cornelius, Thomsen C., van Dijk M., Vertikov A., Zijlstra P.   +46 more
core   +2 more sources

Acousto-optical nanoscopy of buried photonic nanostructures [PDF]

, 2017
We develop a nanoscopy method with in-depth resolution for layered photonic devices. Photonics often requires tailored light field distributions for the optical modes used, and an exact knowledge of the geometry of a device is crucial to assess its ...
Bartels, Bruchhausen, Chen, Danworaphong, Dehoux, Devos, Fainstein, Gérard, Hu, Huet, Jellison, Johne, Kim, Lanzillotti-Kimura, Lee, Lin, Mante, Maris, Matsuda, Matsuda, Matsuda, Mizoguchi, Press, Tamura, Thomsen, Thomsen, van Capel, Villafane, Winter, Yamamoto   +29 more
core   +3 more sources

Photoelastic properties of zinc-blende (AlGa)N in the UV: picosecond ultrasonic studies [PDF]

, 2018
Picosecond ultrasonics was used to study the photoelastic properties of zinc-blende (cubic) c-AlₓGa₁₋ₓN with x around 0.5 The velocities for longitudinal sound in the alloys were measured using ultrafast UV pump-probe experiments with (AlGa)N
Akimov, Andrey V., Kent, Anthony J., Mellor, Christopher J., Novikov, Sergei V., Whale, Josh   +4 more
core   +2 more sources

Nonlinear acousto-magneto-plasmonics

, 2016
We review the recent progress in experimental and theoretical research of interactions between the acoustic, magnetic and plasmonic transients in hybrid metal-ferromagnet multilayer structures excited by ultrashort laser pulses.
Makarov, Denys, Melnikov, Alexey, Nelson, Keith A., Pezeril, Thomas, Razdolski, Ilya, Seletskiy, Denis, Temnov, Vasily V.   +6 more
core   +1 more source

High-frequency acousto-optic effects in Bragg reflectors [PDF]

, 2014
Picosecond acoustic interferometry was used to study the acousto-optic properties of a distributed Bragg reflector (DBR) manufactured from two immiscible polymers (cellulose acetate and polyvinylcarbyzole). Picosecond strain pulses were injected into the
A. J. Kent, A. V. Akimov, Akimov, Arcizet, Bailey, Beugnot, Brüggemann, Chan, Cheng, Colvard, D. J. Farmer, Dainese, Ding, Fainstein, Gorishnyy, Groenen, Grudinin, Gröblacher, Hao, J. Bailey, J. S. Sharp, Jusserand, Katsidis, Lin, Lin, Léger, Mahboob, Maldovan, Matsuda, Matsuda, Morath, N. A. Gippius, Pennec, Safavi-Naeini, Salasyuk, Tas, Teufel, Thomsen, Walker, Weis, Wiederhecker, Wright, Wright, Zhang   +43 more
core   +2 more sources