Search Results - "Ulu, Gökhan"
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Portable standoff spectrometer for hazard identification using integrated quantum cascade laser arrays from 6.5 to 11 µm
Published in Optics express (30-04-2018)“…This article presents new spectroscopic results in standoff chemical detection that are enabled by monolithic arrays of Distributed Feedback (DFB) Quantum…”
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Journal Article -
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High-speed >90% quantum-efficiency p–i–n photodiodes with a resonance wavelength adjustable in the 795–835 nm range
Published in Applied physics letters (22-02-1999)“…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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Journal Article -
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Tailoring and characterizing the quantum efficiency of semiconductor photodetectors
“…In this thesis, we develop and utilize a combination of analytical and computational approaches for the modeling, analysis and characterization of the spectral…”
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Dissertation
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4
Cross-polarization generation and its impact on coupler performance
Published in IEEE journal of selected topics in quantum electronics (01-07-2006)“…In high index contrast integrated optic waveguides, it has been found that waveguide asymmetries can produce cross-polarization coupling. This effect has been…”
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Journal Article -
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Tailoring and characterizing the quantum efficiency of semiconductor photodetectors
Published 01-01-2001“…In this thesis, we develop and utilize a combination of analytical and computational approaches for the modeling, analysis and characterization of the spectral…”
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Dissertation -
6
Resonant cavity enhanced photodiodes with a broadened spectral peak
Published in LEOS 2001. 14th Annual Meeting of the IEEE Lasers and Electro-Optics Society (Cat. No.01CH37242) (2001)“…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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Conference Proceeding