Yazar "Çiçek, Ahmet" için listeleme
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An Acoustic Add-Drop Filter in a Phononic Crystal for High-Sensitivity Detection of Methanol in Ethanol in the Liquid Phase
Biçer, Ahmet; Salman Durmuşlar, Aysevil; Korozlu, Nurettin; Çiçek, Ahmet (Institute of Electrical and Electronics Engineers, 2022)An add-drop filter based on linear waveguides coupled through a ring resonator in a two-dimensional phononic crystal is introduced and its operation in detecting methanol concentration in ethanol is numerically investigated. ... -
Determination of methanol concentration in ethanol in liquid phase by a phononic crystal Mach-Zehnder interferometer
Salman Durmuşlar, Aysevil; Ateş, Emine; Biçer, Ahmet; Deniz, Sualp; Çiçek, Ahmet; Korozlu, Nurettin (Physical Societies of the Nordic Countries, 2021)A practical and portable ultrasonic interferometric sensor to detect methanol concentration in ethanol in the liquid phase is numerically investigated. For high-sensitivity operation, the sensor is designed as a Mach-Zehnder ... -
Evanescent coupling between surface and linear-defect guided modes in phononic crystals
Çiçek, Ahmet; Salman, Aysevil; Kaya, Olgun Adem; Ulug, Bülent (Iop Publishing Ltd, 2016)Evanescent coupling between surface and linear-defect waveguide modes in a two-dimensional phononic crystal of steel cylinders in air is numerically demonstrated. When the ratio of scatterer radii to the lattice constant ... -
Low-concentration liquid sensing by an acoustic Mach-Zehnder interferometer in a two-dimensional phononic crystal
Salman, Aysevil; Kaya, Olgun Adem; Çiçek, Ahmet; Uluğ, Bülent (Iop Publishing Ltd, 2015)Mach-Zehnder interferometer formed by liquid-filled linear defect waveguides in a two-dimensional phononic crystal is numerically realized for sensing low concentrations of an analyte. The waveguides in the square phononic ... -
Phononic crystal surface mode coupling and its use in acoustic Doppler velocimetry
Çiçek, Ahmet; Salman, Aysevil; Kaya, Olgun Adem; Uluğ, Bülent (Elsevier Science Bv, 2016)It is numerically shown that surface modes of two-dimensional phononic crystals, which are Bloch modes bound to the interface between the phononic crystal and the surrounding host, can couple back and forth between the ... -
Sharp bends of phononic crystal surface modes
Çiçek, Ahmet; Salman, Aysevil; Kaya, Olgun Adem; Uluğ, Bülent (Iop Publishing Ltd, 2015)Sharp bending of surface waves at the interface of a two-dimensional phononic crystal (PnC) of steel cylinders in air and the method of using a diagonally offset cylindrical scatterer are numerically demonstrated by ...
