| 09:00 |
|
| 10:00 |
|
| 11:00 |
|
| 12:00 |
[12:00] IMBB Colloquia
- Description:
- Pawel PIWKO
Delidaki's Lab
Title: "New transgenesis system reveals transvection in Drosophila".
Friday, November 15th 2013 @ 12:00
Seminar Room 1 [FORTH's bldg]
|
| 13:00 |
|
| 14:00 |
|
| 15:00 |
|
| 16:00 |
[16:00] MST colloquium
- Description:
- Speaker
Giorgos Tsibidis
Affiliation
IESL, FORTH, Greece
Title
Morphological changes on semiconductor surfaces
after irradiation with ultrashort-pulsed lasers
Location
Department of Physics Bldg., Voutes, 3rd floor Seminar Room
Time
16:00
Language
English
Abstract
Femtosecond laser pulses provide unique possibilities for
high-precision material processing. Understanding of the underlying
physics and fundamental mechanisms that take place in materials
irradiated by ultrashort laser pulses can facilitate optimization of
experimental parameters in current applications and development of
contemporary pulsed laser technologies.
The fundamentals of the physical mechanisms are employed to conduct
a thorough investigation of ultrashort pulsed laser induced surface
modification due to conditions that result in a superheated melted
liquid layer and material evaporation are considered.
The proposed theoretical model aims to address the laser-material
interaction in sub-ablation conditions and thus minimal mass removal
in combination with a hydrodynamics-based scenario of the crater
creation and ripple formation following surface irradiation with
single and multiple pulses, respectively. The development of the
periodic structures is based on a synergy of electron excitation and
capillary wave solidification and the interference of the incident
wave with a surface plasmon wave.
A hybrid theoretical model is also presented to describe
thermoplastic deformation effects on silicon surfaces induced by
single and multiple ultrashort pulsed laser irradiation in submelting
conditions.
Some early results of a similar mechanism is presented to describe
thermal response of other types of materials (i.e. bimetallic layers)
upon irradiation with ultrashort pulsed lasers.
|
| 17:00 |
|
| 18:00 |
|
| 19:00 |
|
| 20:00 |
|
| 21:00 |
|
November 2013
