Search Results - "Gökkavas, M."

Improving the Efficiency Enhancement of Photonic Crystal Based InGaN Solar Cell by Using a GaN Cap Layer by Gundogdu, T. F., Ozbay, E., Gökkavas, M.

“…We studied a high indium content (0.8) InGaN based solar cell design where the active InGaN layer is sandwiched between a GaN cap layer and a GaN spacer layer…”
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Manipulation of Asymmetric Transmission in Planar Chiral Nanostructures by Anisotropic Loss by Li, Z., Gokkavas, M., Ozbay, E.

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45-GHz bandwidth-efficiency resonant-cavity-enhanced ITO-Schottky photodiodes by Biyikli, N., Kimukin, I., Aytur, O., Gokkavas, M., Selim Unlu, M., Ozbay, E.

“…High-speed Schottky photodiodes suffer from low efficiency mainly due to the thin absorption layers and the semitransparent Schottky-contact metals. We have…”
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High-speed high-efficiency large-area resonant cavity enhanced p-i-n photodiodes for multimode fiber communications by Gokkavas, M., Dosunmu, O., Unlu, M.S., Ulu, G., Mirin, R.P., Christensen, D.H., Ozbay, E.

“…We report AlGaAs-GaAs p-i-n photodiodes with a 3-dB bandwidth in excess of 10 GHz for devices as large as 60-μm diameter. Resonant cavity enhanced…”
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100-GHz resonant cavity enhanced Schottky photodiodes by Onat, B.M., Gokkavas, M., Ozbay, E., Ata, E.P., Towe, E., Unlu, M.S.

“…Resonant cavity enhanced (RCE) photodiodes are promising candidates for applications in optical communications and interconnects where ultrafast…”
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High bandwidth-efficiency resonant cavity enhanced Schottky photodiodes for 800–850 nm wavelength operation by Ünlü, M. S., Gökkavas, M., Onat, B. M., Ata, E., Özbay, E., Mirin, R. P., Knopp, K. J., Bertness, K. A., Christensen, D. H.

“…High-speed resonant cavity enhanced Schottky photodiodes operating in 800–850 nm wavelength region are demonstrated. The devices are fabricated in the…”
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Design and optimization of high-speed resonant cavity enhanced Schottky photodiodes by Gokkavas, M., Onat, B.M., Ozbay, E., Ata, E.P., Xu, J., Towe, E., Unlu, M.S.

“…Resonant cavity enhanced (RCE) photodiodes (PD's) are promising candidates for applications in optical communications and interconnects where high-speed…”
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Experimental demonstration of a left-handed metamaterial operating at 100 GHz by Gokkavas, M., Guven, K., Bulu, I., Aydin, K., Penciu, R. S., Kafesaki, M., Soukoulis, C. M., Ozbay, E.

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Fabrication of high-speed resonant cavity enhanced Schottky photodiodes by Ozbay, E., Islam, M.S., Onat, B., Gokkavas, M., Aytur, O., Tuttle, G., Towe, E., Henderson, R.H., Selim Unlu, M.

“…We report the fabrication and testing of a GaAs-based high-speed resonant cavity enhanced (RCE) Schottky photodiode. The top-illuminated RCE detector is…”
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Solar-blind AlxGa1−xN-based avalanche photodiodes by Tut, Turgut, Butun, Serkan, Butun, Bayram, Gokkavas, Mutlu, Yu, HongBo, Ozbay, Ekmel

“…We report the Metalorganic Chemical Vapor Deposition (MOCVD) growth, fabrication, and characterization of solar blind AlxGa1−xN∕GaN-based avalanche…”
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Deep-ultraviolet Al0.75Ga0.25N photodiodes with low cutoff wavelength by Butun, Serkan, Tut, Turgut, Butun, Bayram, Gokkavas, Mutlu, Yu, HongBo, Ozbay, Ekmel

“…Deep ultraviolet Al0.75Ga0.25N metal-semiconductor-metal photodetectors with high Al concentration have been demonstrated. A metal-organic chemical vapor…”
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Resonant cavity enhanced photodiodes with a broadened spectral peak by Gokkavas, M., Ulu, G., Dosunmu, O., Mirin, R.P., Unlu, M.S.

“…We have designed, fabricated, and characterized a novel RCE PD that exhibits a wider and flatter peak quantum efficiency when compared with a standard RCE PD…”
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High-speed >90% quantum-efficiency p–i–n photodiodes with a resonance wavelength adjustable in the 795–835 nm range by Özbay, Ekmel, Kimukin, Ïbrahim, Biyikli, Necmi, Aytür, Orhan, Gökkavas, Mutlu, Ulu, Gökhan, Ünlü, M. Selim, Mirin, Richard P., Bertness, Kris A., Christensen, David H.

“…We report GaAs/AlGaAs-based high-speed, high-efficiency, resonant cavity enhanced p–i–n photodiodes. The devices were fabricated by using a…”
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AlGaN quadruple-band photodetectors by Gokkavas, M., Butun, S., Caban, P., Strupinski, W., Ozbay, E.

“…Quadruple back-illuminated ultraviolet metal-semiconductor-metal photodetectors with four different spectral responsivity bands were demonstrated. The average…”
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Dark current reduction in ultraviolet metal-semiconductor-metal photodetectors based on wide band-gap semiconductors by Butun, S., Gokkavas, M., HongBo Yu, Strupinski, V., Ozbay, E.

“…Photodetectors on semi-insulating GaN templates were demonstrated. They exhibit lower dark current compared to photodetectors fabricated on regular GaN…”
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GHz bandwidth-efficiency resonant cavity enhanced ITO-Schottky photodiodes by Biyikli, N., Kimukin, I., Aytur, O., Ozbay, E., Gokkavas, M., Unlu, M.S.

“…We demonstrated high-performance resonant cavity enhanced ITO-Schottky photodiodes. We achieved a peak efficiency of 75% around 820 nm with a 3-dB bandwidth of…”
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High-speed transparent indium-tin-oxide based resonant cavity Schottky photodiode with Si/sub 3/N/sub 4//SiO/sub 2/ top Bragg mirror by Biyikli, N., Kimukin, I., Aytur, O., Ozbay, E., Gokkavas, M., Unlu, S.

“…Summary form only given. Photodetectors demonstrating high bandwidth-efficiency (BWE) products are required for high-performance optical communication and…”
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High-speed high-efficiency photodetectors for short pulse applications by Selim Unlu, M., Gokkavas, M., Ulu, G., Mirin, R.P., Christensen, D.H.

“…Resonant cavity enhanced (RCE) photodetectors are promising candidates for applications where high-speed high-efficiency photodetection is desirable. In RCE…”
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High-speed widely-tunable >90% quantum-efficiency resonant cavity enhanced p-i-n photodiodes by Biyikli, N., Kimukin, I., Aytur, O., Gokkavas, M., Ulu, G., Mirin, R., Christensen, D.H., Selim Unlu, M., Ozbay, E.

“…We report our work on design, fabrication, and testing of widely tunable high-speed RCE p-i-n photodiodes for operation around 820 nm. The details of the…”
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Ultrafast resonant cavity enhanced Schottky photodiodes by Gokkavas, M., Onat, B.M., Ozbay, E., Islam, M.S., Ata, E.P., Towe, E., Tuttle, G., Unlu, M.S.

“…In conclusion, we have demonstrated a high-speed top illuminated resonant cavity enhanced (RCE) Schottky photodiode (PD) with semi-transparent Au contact. The…”
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