Event 

Title:
PhD Student of CMAM defends his Thesis about Ion beam damage by electronic excitation
When:
12.12.2011 - 12.12.2011
Where:
Faculty of Sciences of the Universidad Autónoma de - Madrid
Category:
Thesis

Description

Miguel Crespillo Almenara, CMAM Ph.D. Student, presents his thesis "Ion beam damage by electronic excitation with swift heavy ions in lithium niobate: Mechanisms and nanostructuring for photonic applications" in the Faculty of Sciences of the Universidad Autónoma de Madrid, on 12th December at 12:00.

Abstract:

The aim of the Thesis is to study the origin, main features and potential applications of the damage produced by high density electronic excitation under high energy heavy ion irradiation (i.e. swift heavy ions). From the fundamental point of view it discusses the different mechanisms responsible for the observed damage. This has been addressed under some specific modelling and by studying the thermal stability of the electronic damage.

The unique nanostructuring capabilities offered by the damaged ion tracks (nanometer diameter and microns length) has been exploited to study, in LiNbO3, the fabrication of special nanopores structures and thick (up to ~ 40 µm) optical waveguides based on nanostructured effective optical medium obtained at ultralow fluence (~1011 at/cm2).
This research has been carried out at the Centro de Micro-Análisis de Materiales (CMAM) of the UAM where most of the ion irradiations (with ion energies up to 50 MeV) have been performed. Some very high energy irradiations (~1000 MeV) have been performed at GANIL (Caen, France) and GSI (Darmstadt, Germany).

Venue

Faculty of Sciences of the Universidad Autónoma de
Venue:
Faculty of Sciences of the Universidad Autónoma de   -   Website
Street:
C/ Francisco Tomás y Valiente, 7
ZIP:
28049
City:
Madrid
Country:
Country: es

Description

The Thesis takes place in Faculty of Sciences of the Universidad Autónoma de Madrid - "Módulo 8 - Sala de Grados"