Sirkeli, V. P. ; Yilmazoglu, O. ; Al-Daffaie, S. ; Oprea, I. ; Ong, D. S. ; Kueppers, F. ; Hartnagel, H. L. (2016):
Effect of Si-Doping of the GaN Barrier on the Internal Quantum Efficiency of InGaN/GaN Light-Emitting Diodes.
8th International Conference on Materials Science and Condensed Matter Physics / MSCMP-2016, Chisinau, Moldova, September 2016, [Conference or Workshop Item]

Hoefle, M. ; Cojocari, O. ; Sobornytskyy, M. ; Jankowski, A. ; Oprea, I. ; Penirschke, A. ; Jakoby, R. ; Decoopman, T. ; Perichaud, M. G. ; Piironen, P. (2015):
Low noise 89 GHz detector module for MetOp-SG.
pp. 395-398, Microwave Conference (EuMC), 2015 European, [Conference or Workshop Item]

Hoefle, M. ; Haehnsen, K. ; Oprea, I. ; Cojocari, O. ; Penirschke, A. ; Jakoby, R. (2013):
Highly responsive planar millimeter wave zero-bias schottky detector with impedance matched folded dipole antenna.
pp. 1-4, Microwave Symposium Digest (IMS), 2013 IEEE MTT-S International, [Conference or Workshop Item]

Cojocari, Oleg ; Oprea, I. ; Sydlo, Cezary ; Zimmermann, R. ; Walber, A. ; Henneberger, R. ; Hartnagel, Hans L. (2007):
Design and characterization of Schottky structures for THz-applications.
In: Frequenz, 61, pp. 172-177. [Article]

Cojocari, Oleg ; Oprea, I. ; Sydlo, Cezary ; Zimmermann, R. ; Walber, A. ; Henneberger, R. ; Hartnagel, Hans L. (2007):
THz Schottky diodes on epitaxial AIGaAs-membrane.
In: [Elektronische Ressource] IRMMW-THz 2007 : conference digest of the Joint 32nd International Conference on Infrared and Millimeter Waves, and 15th International Conference on Terahertz Electronics : City Hall, Cardiff, UK, 3rd - 7rd September, 2007.- Pisc, Piscataway, NJ, IEEE Operations Center, [Conference or Workshop Item]