Zobrazeno 1 - 10
of 45
pro vyhledávání: '"M. Katharakis"'
Autor:
George Kenanakis, G. Tzagkarakis, D. Louloudakis, Mirela Petruta Suchea, E. Koudoumas, E. Drakakis, M. Katharakis, V. Tudose, Emmanuel Kymakis
Publikováno v:
Applied Surface Science. 398:15-18
We report on the mechanisms of the electromagnetic interference shielding effect of graphene based paint like composite layers. In particular, we studied the absorption and reflection of electromagnetic radiation in the 4–20 GHz frequency of variou
Autor:
M. Katharakis, Mirela Petruta Suchea, E. Koudoumas, Ioan Valentin Tudose, E. Drakakis, G. Tzagkarakis, George Kenanakis
Publikováno v:
Applied Surface Science. 352:151-154
We report on preliminary results regarding the applicability of nanostructured composite layers for electromagnetic shielding in the frequency range of 4–20 GHz. Various combinations of materials were employed including poly(3,4-ethylenedioxythioph
Publikováno v:
Thin Solid Films. 517:4303-4306
Zinc oxide transparent conductive thin films were prepared using the pulsed laser deposition technique onto Corning glass substrates and the dependences of their optical and electrical properties on the thickness and the growth temperature were inves
Autor:
Mirela Petruta Suchea, E. Koudoumas, T. Efthimiopoulos, M. Katharakis, C. Tibeica, N. Kornilios, S. Christoulakis
Publikováno v:
Applied Surface Science. 254:5475-5480
The pulsed laser deposition technique was used to produce zinc oxide thin films onto silicon and Corning glass substrates. Homogeneous surfaces exhibiting quite small Root Mean Square (RMS) roughness, consisting of shaped grains were obtained, their
Autor:
M. Katharakis, Mirela Petruta Suchea, E. Koudoumas, George Kiriakidis, N. Katsarakis, S. Christoulakis
Publikováno v:
Applied Surface Science. 253:8141-8145
Zinc oxide films of 40 nm thickness have been deposited on glass substrates by pulsed laser deposition using an excimer XeCl laser (308 nm) at different substrate temperatures ranging from room temperature to 650 °C. Surface investigations carried o
Autor:
E. Koudoumas, George Kiriakidis, S. Christoulakis, Mirela Petruta Suchea, N. Katsarakis, M. Katharakis
Publikováno v:
Applied Surface Science. 252:5351-5354
Transparent zinc oxide (ZnO) thin films with a thickness from 10 to 200 nm were prepared by the PLD technique onto silicon and Corning glass substrates at 350 °C, using an Excimer Laser XeCl (308 nm). Surface investigations carried out by atomic for
Publikováno v:
Journal of Physics: Conference Series. 10:147-150
Zinc oxide transparent thin films (ZnO) with different thickness were prepared by dc magnetron sputtering and pulsed laser deposition (PLD) techniques using metallic and ceramic targets onto silicon and Corning glass substrates. Structural investigat
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 36:1943-1956
The interaction of a laser with potassium atoms is investigated by monitoring the radiation of the 5P–4S transition under the two-photon 4S1/2 –6S1/2 excitation. For low number density and laser intensity the observed radiation is parametric axia
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 35:4969-4980
Potassium 4S1/2–6S1/2 two-photon excitation initiates the emission of several internally generated photons. For the first time two emission lines, one close to and one below the potassium 4P3/2 level, are reported for low pumping intensity. Radiati
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 29:5619-5627
It is shown that by proper use of the excitation spectra, the emission spectra of the transition and the far-field patterns it is possible to distinguish between competing processes involved in the two-photon excitation to the 6S state of potassium,