ANNUAL REPORT - MTA SzFKI
ANNUAL REPORT - MTA SzFKI
ANNUAL REPORT - MTA SzFKI
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groups of the Li 2 B 4 O 7 lattice. The results are helpful for understanding the radiation<br />
induced charge transfer processes.<br />
Design and fabrication of diffractive optical elements and waveguides by ion<br />
implantation. –– Slab waveguides have been designed and fabricated in erbium doped<br />
tellurite glass samples, implanting 1.5 MeV N + ions with doses in the 10 16 – 10 17 ions/cm 2<br />
range. The waveguides were studied using the following methods: M-line test, to check the<br />
functionality of the samples, interference contrast microscopy, to determine the total<br />
modulation of the refractive index in the structures, cathode luminescence (CL), electron<br />
diffraction pattern (EDX) analysis, and spectroscopic ellipsometry, to determine the indepth<br />
refracive index profile of the waveguides. The results showed that the waveguides<br />
were of barrier-type, i.e. the ion implantation produced a negative refractive index change<br />
around the maximum of the distribution of the implanted ions.<br />
History of science. –– The collaboration of the Crystal Physics Department and the<br />
Crystal Physics Ggroup at the Budapest Technical University was analyzed.<br />
E-Mail:<br />
István Bányász<br />
Gábor Corradi<br />
Ivett Hajdara<br />
Ervin Hartmann<br />
László Kovács<br />
Krisztián Lengyel<br />
Gábor Mandula<br />
László Malicskó<br />
Andrea Watterich<br />
banyasz@szfki.hu<br />
corradi@szfki.hu<br />
hajdara@szfki.hu<br />
hartmann@szfki.hu<br />
lkovacs@szfki.hu<br />
klengyel@ szfki.hu<br />
mandula@szfki.hu<br />
malicsko@szfki.hu<br />
watter@szfki.hu<br />
Grants and international cooperations<br />
OTKA T 047265 Photo- and neutronrefractive materials and phenomena (L. Kovács,<br />
2004-2008)<br />
OTKA K 60086 Spectroscopic studies of photon-induced electron transport for data<br />
handling and medical applications (G. Corradi, 2006-2009)<br />
OTKA K 68688 Fabrication of waveguides and diffractive optical elements via ion<br />
implantation (T. Lohner, <strong>MTA</strong> Research Institute for Technical<br />
Physics and Materials Science, contributors I. Bányász and A.<br />
Watterich, 2007 – 2010)<br />
TéT Italian-Hungarian Intergovernmental S & T Cooperation (I-46/03): Growth and FTIR<br />
spectroscopy of optical crystals (L. Kovács, 2004-2007)<br />
TéT Italian-Hungarian Intergovernmental S & T Cooperation (I-15/03): Fabrication of<br />
active and passive integrated optical elements and devices by ion<br />
beam implantation (I. Bányász, 2004-2007)<br />
HAS – Polish Academy of Sciences joint project: Structure of real crystals (A. Watterich,<br />
2005-2007)<br />
HAS – Estonian Academy of Sciences joint project: Luminescence and magnetic<br />
resonance study of pure and doped wide-gap borate and niobate<br />
crystals (G. Corradi, 2007-2009)<br />
HAS – Bulgarian Academy of Sciences joint project: Growth and spectroscopic<br />
characterization of oxide crystals for optical application (L. Kovács,<br />
2007-2009)<br />
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