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Yayın tarihi için Department of Electrical Engineering listeleme

Yayın tarihi için Department of Electrical Engineering listeleme

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  • Silicon based ultra wide discrete band conversion 
    Boyraz, Özdal; Tien, En-Kuang; Gao, Shiming (Society of Photo-optical Instrumentation Engineers, 2010)
    Nonlinear silicon photonics has been an immense research subject in the past several years with promising prospects of delivering chip scale signal modulation, shaping and characterization tools. In particular, broadband ...
  • Fast motion estimation with interpolation-free sub-sample accuracy 
    Dikbaş, Salih; Arıcı, Salih; Altunbaşak, Yücel (Institute of Electrical and Electronics Engineers, 2010-07)
    In this letter, a new fast motion estimation (FME) algorithm capable of producing sub-sample motion vectors at low computational-complexity is proposed. Unlike existing FME algorithms, the proposed algorithm considers the ...
  • A high-speed and low-power pipelined binary search analog to digital converter 
    Mesgarani, Ali; Tekin, Ahmet; Ay, Suat U. (IEEE, 2011)
    This paper presents a new analog to digital converter (ADC) architecture targeting ultra high speed and low power applications. The proposed ADC enables operation of SAR ADCs in a pipelined fashion trading latency for ...
  • Quasi-phase matching in SOI and SOS based parametric wavelength converters 
    Huang, Yuewang; Tien, En-Kuang; Gao, Shiming; Kalyoncu, Salih K.; Song, Qui; Qian, Feng; Boyraz, Özdal (Society of Photo-optical Instrumentation Engineers, 2011)
    In this study, we demonstrate method for quasi phase matched silicon-on-sapphire waveguides suitable for MWIR wavelength conversion to achieve higher conversion efficiency than that can be achieved in uniform waveguide ...
  • Stability analysis of second order pulsed Raman laser in dispersion managed systems 
    Kalyoncu, Salih K.; Gao, Shiming; Tien, En-Kuang; Huang, Yuewang; Yıldırım, Doğukan; Adas, Enver; Wabnitz, Stefano; Boyraz, Özdal (Society of Photo-optical Instrumentation Engineers, 2011)
    Wavelength tunable synchronous pulse sources are highly desirable for spectroscopy and optical diagnostics. The common method to generate short pulses in the fiber is the use of nonlinear induced spectral broadening which ...
  • eSNR improvement in indirect detection of mid-IR signals by wavelength conversion in SOS waveguides 
    Huang, Yuewang; Kalyoncu, Salih Kağan; Tien, Enkuang K.; Gao, Shiming; Song, Qi; Qian, Feng; Adas, Enver; Yıldırım, Doğukan; Boyraz, Özdal (Society of Photo-optical Instrumentation Engineers, 2011)
    With a transparency window up to 6 μm, sapphire can serve as a platform to support silicon photonic integrated circuit in MWIR. Planar waveguide devices based on silicon-on-sapphire (SOS) are emerging as a bridge between ...
  • Highly-linear FM transmitter for mobile application in 65nm CMOS 
    Ginsburg, Brian P.,; Nagaraj, Krishnasawamy; Nayak, Neeraj; Özgün, Mehmet Tamer; Subburaj, Karthik; Murali, Sriram; Ledesma, Francisco (IEEE, 2011-06)
    An FM frequency synthesizer and antenna driver with >;63dB SNR, <;0.1% THD, and -101dBc out-of band emissions at 124 dBμV output swing in 65 nm digital CMOS is described. The optimized FLL incorporates a DCO with a highly ...
  • Stability analysis of pulsed cascaded Raman lasers in dispersion-managed systems 
    Kalyoncu, Salih K.; Gao, Shiming; Tien, En-Kuang; Huang, Yuewang; Yıldırım, Doğukan; Adas, Enver; Wabnitz, Stefano; Boyraz, Özdal (Optical Society of America, 2011-11)
    Locate full-text(opens in a new window)| Export | Download | Add to List | More... Journal of the Optical Society of America B: Optical Physics Volume 28, Issue 11, November 2011, Pages 2812-2819 Stability analysis ...
  • Silicon on sapphire and SOI photonic devices for mid-infrared and near-IR wavelengths 
    Boyraz, Özdal; Huang, Yuewang; Sang, Xinzhu (Society of Photo-optical Instrumentation Engineers, 2012)
    Conventional SOI waveguide technology, serving as the foundation of near-IR photonics, meets its limitation in mid-IR due to high loss associated with the buried oxide. Silicon-on-sapphire (SOS) waveguides are considered ...
  • Energy-minimization based motion estimation using adaptive smoothness priors 
    Arıcı, Tarık; Aksakallı, Vural (SciTePress, 2012)
    Energy minimization algorithms are used in low-level computer vision applications for labeling tasks such as stereo-disparity estimation, image restoration, motion estimation, and optical flow. The energy function involves ...
  • Fast arbitrary waveform generation by using digital micro-mirror arrays 
    Kalyoncu, Salih K.; Song, Qi; Huang, Yuewang; Boyraz, Özdal (IEEE, 2012-09)
    We demonstrate fast optical arbitrary waveform generation by using MEMS digital micro-mirror arrays. Experimentally, we obtain ~120MHz waveforms that can be controlled by using 1024×768 mirror arrays. 1GHz waveforms ...
  • A tabu search approach for the NMR protein structure-based assignment problem 
    Çavuşlar, Gizem; Çatay, Bülent; Apaydın, Mehmet Serkan (Institute of Electrical and Electronics Engineers (IEEE), 2012-11)
    Nuclear Magnetic Resonance (NMR) (Abbreviations used: NMR, Nuclear Magnetic Resonance; NOE, Nuclear Overhauser Effect; RDC, Residual Dipolar Coupling; PDB, Protein Data Bank; SBA, Structure-Based Assignments; NVR, Nuclear ...
  • Analytical study on arbitrary waveform generation by MEMS micro mirror arrays 
    Kalyoncu, Salih K.; Huang, Yuewang; Song, Qi; Boyraz, Özdal (Optical Society of America, 2012-12)
    We provide analytical modeling and the detailed procedure that is used in recently proposed arbitrary waveform generation technique by using MEMS digital micro-mirror arrays. We estimate the achievable temporal resolution, ...
  • Experiments on company name disambiguation with supervised classification techniques 
    Polat, Nafiye (IEEE Computer Society, 2013)
    Entity disambiguation is the task of identifying the real world entity was referred to in a context. Ambiguous references to entities can occur due to variations of how entity was referenced (BT, British Telecom) or inherit ...
  • Distinguishing the type of NOE for NMR protein structure-based assignments 
    Akhmedov, Murodzhon; Çatay, Bülent; Apaydın, Mehmet Serkan (IEEE, 2013)
    The key bottleneck of Nuclear Magnetic Resonance (NMR) studies is to map the NMR peaks to corresponding nuclei, also known as the assignment problem. Structure Based Assignment (SBA) is an approach to solve this computationally ...
  • Gesture recognition using skeleton data with weighted dynamic time warping 
    Çelebi, Sait; Temiz, Talha T.; Arıcı, Tarık; Aydın, Ali S. (2013)
    With Microsoft's launch of Kinect in 2010, and release of Kinect SDK in 2011, numerous applications and research projects exploring new ways in human-computer interaction have been enabled. Gesture recognition is a technology ...
  • Photoconductivity of catalyst-free grown aluminum nitride nanowires 
    Teker, Kaşif; Otto, Jesse; Siemann, Andrew (Society of Photo-optical Instrumentation Engineers, 2013)
    This paper presents photoconductivity investigation of catalyst-free AlN nanowire synthesized by chemical vapor deposition using Al and NH3, as source materials. The growth runs have been carried out at 1100°C under H2 as ...
  • A dynamic Bayesian framwork to learn temporal gene interactions using external knowledge 
    Aǧyüz, Umut; İşçi, Şenol; Öztürk, Cengizhan; Ademoǧlu, Ahmet; Otu, Hasan H (IEEE, 2013)
    One of the main problems in systems biology is learning gene interaction networks from experimental data. This turns out to be a challenging task as the experimental data is sparse and noisy, and network learning algorithms ...
  • Photoconductivity of GaN nanowires 
    Teker, Kaşif; Otto, J.; Siemann, A. (2013)
    Gallium nitride nanostructures continue to attract great interest due to their applications in optoelectronic devices (UV photodetectors, photosensors, and light-emitting devices), high-power/high temperature electronics, ...
  • Fast arbitrary waveform generation by using digital micromirror arrays 
    Kalyoncu, Salih K.; Huang, Yuewang; Song, Qi; Boyraz, Özdal (Institute of Electrical and Electronics Engineers, 2013-02)
    We demonstrate fast optical arbitrary waveform generation by using the MEMS digital micromirror arrays. The desired radio-frequency waveforms are achieved by properly shaping the spectrum of the broadband optical source ...

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