Results 21 to 30 of about 1,443 (165)

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
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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

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
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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

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

High-Acoustic-Impedance Tantalum Oxide Layers for Insulating Acoustic Reflectors [PDF]

, 2012
This work describes the assessment of the acoustic properties of sputtered tantalum oxide films intended for use as high-impedance films of acoustic reflectors for solidly mounted resonators operating in the gigahertz frequency range.
Capilla Osorio, José, Clement Lorenzo, Marta, Devos, Arnaud, Iborra Grau, Enrique, Olivares Roza, Jimena, Sangrador García, Jesús   +5 more
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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
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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
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The marriage of plasmonics, magnetism, acoustics and ultrafast optics

, 2012
Surface plasmon polaritons (SPP or SP) are electromagnetic waves propagating along metal dielectric interfaces and existing over a wide range of frequencies.
Temnov, Vasily V.
core   +1 more source

Time-domain Brillouin scattering assisted by diffraction gratings [PDF]

, 2017
Absorption of ultrashort laser pulses in a metallic grating deposited on a transparent sample launches coherent compression/dilatation acoustic pulses in directions of different orders of acoustic diffraction. Their propagation is detected by the delayed
Chaban, Ievgeniia, Fujita, Kentaro, Gusev, Vitalyi, Matsuda, Osamu, Pezeril, Thomas   +4 more
core   +3 more sources