Search Results - "Loukakos, P. A."

The influence of ultra-fast temporal energy regulation on the morphology of Si surfaces through femtosecond double pulse laser irradiation by Barberoglou, M., Tsibidis, G. D., Gray, D., Magoulakis, E., Fotakis, C., Stratakis, E., Loukakos, P. A.

“…The effect of ultra-short laser-induced morphological changes upon irradiation of silicon with double pulse sequences is investigated under conditions that…”
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Dynamics of ripple formation on silicon surfaces by ultrashort laser pulses in subablation conditions by Tsibidis, G. D., Barberoglou, M., Loukakos, P. A., Stratakis, E., Fotakis, C.

“…An investigation of ultrashort pulsed laser-induced surface modification due to conditions that result in a superheated melted liquid layer and material…”
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Femtosecond electron and spin dynamics in Gd(0001) studied by time-resolved photoemission and magneto-optics by LISOWSKI, M, LOUKAKOS, P. A, MELNIKOV, A, RADU, I, UNGUREANU, L, WOLF, M, BOVENSIEPEN, U

“…Femtosecond electron and spin dynamics of the Gd(0001) surface are investigated by time-resolved photoemission and second harmonic generation. Upon optical…”
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Ultrafast electron-electron scattering and energy exchanges in noble-metal nanoparticles by VOISIN, C, CHRISTOFILOS, D, LOUKAKOS, P. A, DEL FATTI, N, VALLEE, F, LERME, J, GAUDRY, M, COTTANCIN, E, PELLARIN, M, BROYER, M

“…The conduction electron energy exchanges are investigated in gold and silver nanoparticles with average size ranging from 2 to 26 nm, embedded in different…”
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Laser induced forward transfer of metals by temporally shaped femtosecond laser pulses by Klini, A, Loukakos, P A, Gray, D, Manousaki, A, Fotakis, C

“…Temporally shaped, femtosecond laser pulses have been used for controlling the size and the morphology of micron-sized metallic structures obtained by using…”
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Ultra-fast dynamics of electron thermalization, cooling and transport effects in Ru(001) by Lisowski, M., Loukakos, P.A., Bovensiepen, U., St hler, J., Gahl, C., Wolf, M.

“…Time-resolved two-photon photoelectron spectroscopy is used to study the dynamics of non-equilibrium electron and hole distributions at bare and D2O-covered…”
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Charge transfer dynamics in molecular solids and adsorbates driven by local and non-local excitations by Föhlisch, A., Vijayalakshmi, S., Pietzsch, A., Nagasono, M., Wurth, W., Kirchmann, P.S., Loukakos, P.A., Bovensiepen, U., Wolf, M., Tchaplyguine, M., Hennies, F.

“…Charge transfer pathways and charge transfer times in molecular films and in adsorbate layers depend both on the details of the electronic structure as well as…”
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Dynamics of the self-energy of the Gd(0001) surface state probed by femtosecond photoemission spectroscopy by Loukakos, P A, Lisowski, M, Bihlmayer, G, Blügel, S, Wolf, M, Bovensiepen, U

“…Transient changes of the complex self-energy of the 5d(z2) surface state on Gd(0001) after intense optical excitation are investigated by femtosecond…”
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Laser induced forward transfer of metal oxides using femtosecond double pulses by Papadopoulou, E.L., Axente, E., Magoulakis, E., Fotakis, C., Loukakos, P.A.

“…Laser induced forward transfer (LIFT) of ZnO and TiO2 thin films onto Si has been realized with femtosecond double pulses of equal intensity, as a basic form…”
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Ultrafast electron dynamics in ZnO/Si micro-cones by Magoulakis, E., Papadopoulou, E. L., Stratakis, E., Fotakis, C., Loukakos, P. A.

“…A comparative study of the ultrafast dynamics on ZnO thin films deposited on flat Si substrates and on Si micro-cones following ultrashort laser excitation has…”
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Time evolution of the electronic structure of 1T-TaS2 through the insulator-metal transition by Perfetti, L, Loukakos, P A, Lisowski, M, Bovensiepen, U, Berger, H, Biermann, S, Cornaglia, P S, Georges, A, Wolf, M

“…Femtosecond time-resolved photoemission is used to investigate the time evolution of electronic structure in the Mott insulator 1T-TaS2. A collapse of the…”
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Controlling ripples' periodicity using temporally delayed femtosecond laser double pulses by Barberoglou, M, Gray, D, Magoulakis, E, Fotakis, C, Loukakos, P A, Stratakis, E

“…We demonstrate the capability to control the ripple periodicity on polycrystalline ZnO films by applying temporally delayed femtosecond double pulses. It is…”
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Ultrafast Processes in Graphene Oxide during Femtosecond Laser Excitation by Liaros, N, Couris, S, Koudoumas, E, Loukakos, P. A

“…Ultrafast pump–probe spectroscopy on as-grown graphene oxide single sheet thin layers was employed in order to study their response following ultrafast…”
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Femtosecond dynamics of electronic states in the Mott insulator 1T-TaS 2 by time resolved photoelectron spectroscopy by Perfetti, L, Loukakos, P A, Lisowski, M, Bovensiepen, U, Wolf, M, Berger, H, Biermann, S, Georges, A

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Controlled ultrashort-pulse laser-induced ripple formation on semiconductors by Tsibidis, G. D., Stratakis, E., Loukakos, P. A., Fotakis, C.

“…In this paper we review recent highlights of our research on the interaction of ultrafast laser pulses with surfaces with the aim of analyzing the fundamental…”
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Femtosecond dynamics of electronic states in the Mott insulator 1T-TaS2 by time resolved photoelectron spectroscopy by Perfetti, L, Loukakos, P A, Lisowski, M, Bovensiepen, U, Wolf, M, Berger, H, Biermann, S, Georges, A

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Controlling nanoscale acoustic strains in silicon using chirped femtosecond laser pulses by Tzianaki, E., Bakarezos, M., Tsibidis, G. D., Petrakis, S., Loukakos, P. A., Kosmidis, C., Tatarakis, M., Papadogiannis, N. A.

“…The influence of femtosecond laser pulse chirp on laser-generated longitudinal acoustic strains in Si (100) monocrystal substrates is studied. Degenerate…”
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Ultrafast laser pulse chirp effects on laser-generated nanoacoustic strains in Silicon by Bakarezos, M., Tzianaki, E., Petrakis, S., Tsibidis, G., Loukakos, P.A., Dimitriou, V., Kosmidis, C., Tatarakis, M., Papadogiannis, N.A.

“…•All-optical control of ultrafast laser-generated nanoacoustic strains in Silicon.•Study of nanoacoustic strains over a wide range of laser pulse…”
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Observation of the inversion of second and third harmonic generation efficiencies on a gold surface in the femtosecond regime by Papadogiannis, N.A, Loukakos, P.A, Moustaizis, S.D

“…We present measurements of second and third harmonic generation efficiencies of gold, induced by p-polarized 290 fs Ti:sapphire laser pulses at 800 nm, in a…”
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Ultrafast electron trapping times in low-temperature-grown gallium arsenide: The effect of the arsenic precipitate spacing and size by Loukakos, P. A., Kalpouzos, C., Perakis, I. E., Hatzopoulos, Z., Logaki, M., Fotakis, C.

“…The role and interplay of basic structure parameters of arsenic precipitates on the ultrafast trapping of conduction band electrons has been studied in a…”
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