Now showing items 1-6 of 6

    • Electric breakdown in polycrystalline semiconductors with highly nonlinear I-V characteristics: Simulations for simple barrier height models 

      Yildirim H.E.; Tanatar, Bilal; Canessa, E. (1997)
      An extension of the Canessa and Nguyen binary model for the nonlinear current-voltage (I-V) characteristics of polycrystalline semiconductors, based on the electrical properties of individual grains, is presented. Simple ...
    • High-performance solar-blind AlGaN photodetectors 

      Özbay, Ekmel; Bıyıklı, Necmi; Kimukin, İbrahim; Tut, Turgut; Kartaloğlu, Tolga; Aytür, Orhan (IEEE, 2004)
      High-performance aluminum gallium nitride (AlGaN)-based solar-blind (SB) photodetectors were demonstrated using different device structures. The Al x-Ga1-xN layers structure were grown by metalorganic chemical vapor ...
    • High-speed solar-blind photodetectors with indium-tin-oxide Schottky contacts 

      Biyikli, N.; Kimukin, I.; Kartaloglu, T.; Aytur, O.; Özbay, Ekmel (American Institute of Physics, 2003)
      AlGaN/GaN-based high-speed solar-blind photodetectors were discussed. Current-voltage, spectral responsivity, and high-frequency response characterizations were performed. Breakdown voltages larger than 40 V were obtained. ...
    • Investigation of AlGaN buffer layers on sapphire grown by MOVPE 

      Van Gemmern, P.; Dikme, Y.; Bıyıklı, Necmi; Kalisch, H.; Özbay, Ekmel; Jansen, R. H.; Heuken, M. (SPIE, 2004)
      In this work, AlGaN layers were grown on sapphire by metal-organic vapor phase epitaxy (MOVPE) on (0001)-oriented sapphire substrates, with the intention to investigate the effect of varying Al/MO and V/III ratios on the ...
    • Rate-distortion optimized layered stereoscopic video streaming with raptor codes 

      Tan, A. Serdar; Aksay, A.; Bilen, C.; Bozdağı-Akar, G.; Arıkan, Erdal (IEEE, 2007)
      A near optimal streaming system for stereoscopic video is proposed. Initially, the stereoscopic video is separated into three layers and the approximate analytical model of the Rate-Distortion (RD) curve of each layer is ...
    • Response of porcine articular cartilage to irradiation by an ultrafast, burst-mode laser 

      Dzelzainis, T.; Hammouti, S.; Prickaerts, M.; Cassidy, K.; İlday, F. Ömer; Kalaycıoğlu, Hamit; Yavaş, S.; Karamuk, Ş.; Golaraei, A.; Barzda, V.; Akens, M.; Lilge, L.; Marjoribanks, R. (Optical Society of America (OSA), 2019)
      Plasma-mediated ablation by ultrafast pulses is generally considered to be a material-independent process. We show that, in certain circumstances, this assumption may be invalid. Physical processes involved and the impact ...