Zobrazeno 1 - 10
of 172
pro vyhledávání: '"Pezeril T"'
Autor:
Lee, Min-Cheol, Sirica, N., Teitelbaum, S. W., Maznev, A., Pezeril, T., Tutchton, R., Krapivin, V., de la Pena, G. A., Huang, Y., Zhao, L. X., Chen, G. F., Xu, B., Yang, R., Shi, J., Zhu, J., Yarotski, D. A., Qiu, X. G., Nelson, K. A., Trigo, M., Reis, D. A., Prasankumar, R. P.
Publikováno v:
Phys. Rev. Lett. 128, 155301 (2022)
Using femtosecond time-resolved X-ray diffraction, we investigated optically excited coherent acoustic phonons in the Weyl semimetal TaAs. The low symmetry of the (112) surface probed in our experiment enables the simultaneous excitation of longitudi
Externí odkaz:
http://arxiv.org/abs/2011.07196
Publikováno v:
EPJ Web of Conferences, Vol 41, p 04005 (2013)
By using the picosecond ultrasonics technique, piezoelectric effect in GaAs undoped sample at both faces (A[111] and B[-1-1-1]) is experimentally studied. We demonstrate that piezoelectric generation of sound can dominate in GaAs material over the de
Externí odkaz:
https://doaj.org/article/214bd15d8baf419ba4224a467d3d88cf
Autor:
Parpiiev, S. P. Zeuschner T., Pezeril, T., Hillion, A., Dumesnil, K., Anane, M., Pudell, J., Willig, L., Rössle, M., Herzog, M., von Reppert, A., Bargheer, M.
We combine ultrafast X-ray diffraction (UXRD) and time-resolved Magneto-Optical Kerr Effect (MOKE) measurements to monitor the strain pulses in laser-excited TbFe2/Nb heterostructures. Spatial separation of the Nb detection layer from the laser excit
Externí odkaz:
http://arxiv.org/abs/1812.01512
We present results of time-domain Brillouin scattering (TDBS) to determine the local temperature of liquids in contact to an optical transducer. TDBS is based on an ultrafast pump-probe technique to determine the light scattering frequency shift caus
Externí odkaz:
http://arxiv.org/abs/1809.06711
Autor:
Veysset, D., Gutiérrez-Hernández, U., Dresselhaus-Cooper, L., De Colle, F., Kooi, S., Nelson, K. A., Quinto-Su, P. A., Pezeril, T.
Publikováno v:
Phys. Rev. E 97, 053112 (2018)
In this study a single laser pulse spatially shaped into a ring is focused into a thin water layer, creating an annular cavitation bubble and cylindrical shock waves: an outer shock that diverges away from the excitation laser ring and an inner shock
Externí odkaz:
http://arxiv.org/abs/1709.06836
We present an optical technique based on ultrafast photoacoustics to precisely determine the local temperature distribution profile in liquid samples in contact with a laser heated optical transducer. This ultrafast pump-probe experiment uses time-do
Externí odkaz:
http://arxiv.org/abs/1702.01078
Autor:
Parpiiev, T., Servol, M., Lorenc, M., Chaban, I., Collet, E., Cailleau, H., Ruello, P., Chastanet, G., Pezeril, T.
We report GHz longitudinal as well as shear acoustic phonons photoexcitation and photodetection using femtosecond laser pulses in a spin-crossover molecular crystal. From our experimental observation of time domain Brillouin scattering triggered by t
Externí odkaz:
http://arxiv.org/abs/1604.03297
Autor:
Shalagatskyi, V., Kovalenko, O., Shumylo, V., Alekhin, A., Vaudel, G., Pezeril, T., Vlasov, V. S., Lomonosov, A. M., Gusev, V. E., Makarov, D., Temnov, V. V.
Ultrafast optical excitation of gold-cobalt bilayers triggers the nontrivial interplay between the electronic, acoustic, and magnetic degrees of freedom. Laser-heated electrons generated at the gold-air interface diffuse through the layer of gold and
Externí odkaz:
http://arxiv.org/abs/1511.09060
Autor:
Ruello, P., Ayouch, A., Vaudel, G., Pezeril, T., Delorme, N., Sato, S., Kimura, K., Gusev, V.
We report the investigation of the generation and detection of GHz coherent acoustic phonons in plasmonic gold nanoparticles superlattices (NPS). The experiments have been performed from an optical femtosecond pump-probe scheme across the optical pla
Externí odkaz:
http://arxiv.org/abs/1507.02258
Publikováno v:
JOSA B, Vol. 31, Issue 2, pp. 282-290 (2014)
Ultrafast laser excited hot electrons can transport energy supersonically far from the region where they are initially produced. We show that this ultrafast energy transport is responsible of the emission of coherent acoustic phonons deeply beneath t
Externí odkaz:
http://arxiv.org/abs/1304.5391