His research interests concern photonic materials and micro / nano structures with emphasis on applications in information technologies and optical sensors. Current research activities include:
- Fabrication and characterization of nano / micro photonic structures, using laser micromachining techniques and pulsed laser deposition.
- Dilute nitrides for applications in optoelectronic devices
- Advanced photonic structures based on μ-ring resonators
- Quantum dots for optical signal processing and optical telecommunications.
- Polarization dynamics of Vertical Cavity Surface Emitting Lasers (VCSELs).
- Polymeric photonic materials for applications in optical telecommunications
Representative publications:
- D. Alexandropoulos, R. K. Al-Seyab, I. D. Henning and M. J. Adams, “Instabilities in quantum-dot spin-VCSELs,” Optics Letters, vol. 37, no. 10, pp. 1700-1702, May 2012
- M. Vasileiadis, L. Athanasekos, A. Meristoudi, D. Alexandropoulos, G. Mousdis, E. Karoutsos, A. Botsialas, and N. Vainos “Diffractive Optic Sensor for Remote Point Detection of Ammonia”, Optics Lett., 35, pp. 1476-1478, 2010
- L. Athanasekos, M. Vasileiadis, A. Tsigara, E. Kaminska, A. Piotrowska, D. Alexandropoulos, M. M. Sigalas and N. A. Vainos, “Multilayer metal/metal-oxide diffractive structure for photonic temperature sensing”, Optics Lett., 35, pp. 4003-4005,2010
- D. Alexandropoulos, J. Scheuer and N. A. Vainos, “Spectral Properties of Active Racetrack Semiconductor Structures with Intra-cavity Reflections” IEEE Journal of Selected Topics in Quantum Electronics, 15/5, pp. 1420-1426, 2009
- X. Li, M. J. Adams, D. Alexandropoulos and I.F. Lealmann, “Gain recovery in semiconductor optical amplifiers”, Optics. Communic. 281, pp. 3466-3470, 2008.
Contact Details
(+30) 2610 997803
dalexa (AT) upatras {DOT} gr
