Department of Electrical and Electronics Engineering
Recent Submissions
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A generalized eigenvalue method for fdtd analyses
(John Wiley & Sons, 1993-07)In this article we apply the generalized eigenvalue method (GEM) to extract the complex exponentials from a truncated time record computed by the finite‐difference time‐domain (FDTD) code for analyzing microwave integrated ... -
Regularized inversion of a two‐dimensional integral equation with applications in borehole induction measurements
(American Geophysical Union, 1994)Well bore measurements of conductivity, gravity, and surface measurements of magnetotelluric fields can be modeled as a two‐dimensional integral equation with additive measurement noise. The governing integral equation has ... -
Tunable deflection and asymmetric transmission of THz waves using a thin slab of graphene-dielectric metamaterial, with and without ENZ components
(Optical Society of America, 2018)Tunable deflection of obliquely incident, linearly polarized terahertz waves is theoretically studied in a wide frequency range around 20 THz, by combining a thin slab of graphene-dielectric metamaterial (with ten layers ... -
Analyzing the AlGaN/AlN/GaN heterostructures for HEMT applications
(American Scientific Publishers, 2018-03)In the present work, we have reported two high-electron-mobility transistor structures (HEMTs) with different thick AlN buffer deposited on sapphire substrates by metal-organic chemical vapor deposition (MOCVD). AlN buffer ... -
Thermal annealing effects on the electrical and structural properties of Ni/Pt Schottky contacts on the quaternary AlInGaN epilayer
(Springer US, 2018)Pt/Au, Ni/Au, Ni/Pt/Au Schottky contacts were placed on a quaternary Al0.84In0.13Ga0.03N epilayer. The electrical and structural properties of the as-deposited Pt/Au, Ni/Au, Ni/Pt/Au and annealed Ni/Pt/Au Schottky contacts ... -
Strategies for plasmonic hot‐electron‐driven photoelectrochemical water splitting
(Wiley - V C H Verlag GmbH & Co. KGaA, 2018)Photoelectrochemical water splitting (PEC‐WS) was inspired by the natural photosynthesis process that utilizes sunlight energy to produce chemical energy through splitting water to form hydrogen and oxygen. One recent ... -
An extension of the physical theory of diffraction concept for aperture radiation problems
(Wiley-Blackwell Publishing, Inc., 1994)A correction to the Kirchhoff‐Huygens approximation in the format of a diffraction coefficient is derived for an aperture terminated by a half plane. As in the physical theory of diffraction (PTD), this is achieved by ... -
The Topkapi Palace Museum
(Wiley-Blackwell Publishing Ltd., 2000)A city‐like ensemble overlooking the Marmara Sea and the Bosphorus, Istanbul’s legendary Topkapi Palace became a synonym for Ottoman history and the heart of a far‐flung empire for 400 years. Transformed into a museum, it ... -
Electronic and optical properties of atomic layer-deposited ZnO and TiO2
(Springer New York LLC, 2018)Metal oxides are attractive for thin film optoelectronic applications. Due to their wide energy bandgaps, ZnO and TiO2 are being investigated by many researchers. Here, we have studied the electrical and optical properties ... -
Connection of collimation, asymmetric beaming, and independent transmission-reflection processes in concentric-groove gratings supporting spoof surface plasmons
(Springer New York LLC, 2018)Transmission through subwavelength apertures enables separation of the incidence half-space and the exit half-space, which leads to that the spatial distribution of the field in the latter is not affected by the distribution ... -
Possible plasmonic acceleration of LED modulation for Li-Fi applications
(Springer New York LLC, 2018)Emerging LED-based wireless visible light communication (Li-Fi) needs faster LED response to secure desirable modulation rates. Decay rate of an emitter can be enhanced by plasmonics, typically by an expense of efficiency ... -
Efficient NP tests for anomaly detection over birth-death type DTMCs
(Springer New York LLC, 2018)We propose computationally highly efficient Neyman-Pearson (NP) tests for anomaly detection over birth-death type discrete time Markov chains. Instead of relying on extensive Monte Carlo simulations (as in the case of the ... -
Design of fluxgate sensors for different applications from geology to medicine
(Springer New York LLC, 2018)In this study, we have shown that fluxgate sensors can be used for different application areas. Alternative sensor configurations have been developed for three different application areas. These are mainly rod- and ring-type ... -
A low-cost feedback control systems laboratory setup via Arduino-Simulink interface
(John Wiley and Sons, 2018)Control theory education, when supported by practice, becomes more comprehendible for students and useful for their professional career. This paper presents low-cost experiments for laboratory sessions of a feedback control ... -
Power spectrum equalized scalar representation of wide-angle optical field propagation
(Springer New York LLC, 2018)It may be desirable to represent optical fields using scalar approximations, due to its simplicity. Since the optical field is an electromagnetic wave, in order to implement an optical setup, a mapping from such a scalar ... -
Reduction of thermal strain induced rate error for navigation grade fiber optic gyroscope
(Optical Society of America, 2018)This paper presents an 8-fold reduction of thermal sensitivity of a navigation grade fiber optic gyroscope (FOG) coil. We used an advanced thermal modeling of a fiber optic gyroscope coil to obtain the strain fields along ... -
Laser writing of nanostructures deep inside Gallium Arsenide (GaAs)
(OSA - The Optical Society, 2018)Recently, we have showed a direct laser writing method that enables the first subsurface modifications and functional devices created deep inside silicon. Here, we extend the technique demonstrating the first controlled ... -
Error control in MLFMA with multiple-precision arithmetic
(Institution of Engineering and Technology, 2018)We present a new error control method that provides the truncation numbers as well as the required digits of machine precision for the translation operator of the multilevel fast multipole algorithm (MLFMA). The proposed ... -
Electromagnetic scattering by several 2-D single biological cell models
(Institute of Electrical and Electronics Engineers, 2018)The electromagnetic 2-D scattering from a single biological cell is analyzed by using Muller boundary integral equation (MBIE) method. The accuracy and smoothness of the solution are improved by applying Nystrom-type ... -
Discrete similariton regime for energy scaling of modelocked thin-disk lasers
(Institute of Electrical and Electronics Engineers, 2018)We investigate energy scaling of modelocked thin-disk lasers via modelocking regimes which are more tolerant in terms of maximum nonlinearity than soliton modelocking. Our numerical results show promise for mJ-level pulse ...
