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Işıkhan Güler

E-mail
isikhan@metu.edu.tr
Department
Department of Civil Engineering
Structural and Optical Properties of Ga2Se3 Crystals by Spectroscopic Ellipsometry
Güler, Işıkhan; Işık, Mehmet; Hasanlı, Nızamı; Gasanova, L. G.; Babayeva, R. F. (2019-04-01)
Optical and crystalline structure properties of Ga2Se3 crystals were analyzed utilizing ellipsometry and x-ray diffraction (XRD) experiments, respectively. Components of the complex dielectric function (epsilon=epsilon(1)+...
Şekil Değiştirebilir Basamak Tipi Dalgakıranların Performansı Üzerine Örnek Bir Uygulama, Ordu-Giresun Havaalanı, Türkiye
Özyurt Tarakcıoğlu, Gülizar; Baykal, Cüneyt; Bezazoğlu, Semih; Atak, Doğukan; Ergin, Ayşen; Güler, Işıkhan (2018-12-30)
In this study, the stability and serviceability (wave overtopping) of hardly-reshaping berm breakwater of Ordu-Giresun International Airport and four alternative cross-sections of fully- and partly-reshaping berm breakwate...
Characteristic features of thermoluminescence in neodymium-doped gallium sulfide
Güler, Işıkhan; Işık, Mehmet; Ahmedova, F.; Guseinov, A.; Hasanlı, Nızamı (2018-06-01)
The thermoluminescence (TL) of neodymium-doped gallium sulfide (GaS:Nd) single crystals was measured from 10 K to room temperature with various heating rates between 0.2 and 1.0 K/sec. Two peaks centered at 70.9 K and 116....
Determination of Trapping Parameters of Tl2In2S3Se Layered Single Crystal by Thermoluminescence
Güler, Işıkhan; Hasanlı, Nızamı (2018-04-01)
Thermoluminescence (TL) measurements are performed to evaluate the trap states in Tl2In2S3Se layered single crystals. TL experiments are conducted with varying temperature from 10 to 300 K and warming rates from 0.2 to 1.0...
Optical and photoelectrical properties of TlInSSe layered single crystals
Güler, Işıkhan; Hasanlı, Nızamı (2018-01-01)
Optical and electrical properties of TlInSSe layered single crystals have been studied by means of transmission, reflection and photoconductivity measurements. Transmission and reflection experiments have been carried out ...
Thermoluminescence in gallium sesquisulfide single crystals: usual and unusual heating rate dependencies
Güler, Işıkhan; Işık, Mehmet; Gasanova, L.; Mahammadov, A.; Hasanlı, Nızamı (2018-01-01)
Thermoluminescence (TL) experiments were conducted for Ga2S3 crystals to obtain information about trapping parameters. TL measurements were performed from 10 to 300 K with varying heating rates in the range of 0.2-0.8 K/s....
Dynamic responses of two blocks under dynamic loading using experimental and numerical studies
Cihan, H. K.; Ergin, Ayşen; Cihan, K.; Güler, Işıkhan (2015-01-01)
Block type quay walls are one of the most generally used type of gravity quay walls however seismic risks of this kind of structures have not already received the proper amount of attention. In this study, stability of blo...
Two-Dimensional Depth-Averaged Beach Evolution Modeling: Case Study of the Kizilirmak River Mouth, Turkey
Baykal, Cüneyt; Ergin, Ayşen; Güler, Işıkhan (2014-05-01)
This study presents an application of a two-dimensional beach evolution model to a shoreline change problem at the Kizilirmak River mouth, which has been facing severe coastal erosion problems for more than 20 years. The s...
Temperature-dependent absorption edge and photoconductivity of Tl2In2S3Se layered single crystals
Güler, Işıkhan; Ambrico, M.; Ligonzo, T.; Hasanlı, Nızamı (2013-02-15)
Temperature variation of indirect band gap of Tl2In2S3Se layered single crystals were obtained by means of absorption and photoconductivity measurements. The temperature coefficient of -7.1 x 10(-4) eV/K from absorption me...
Raman scattering in TlInS2xSe2(1-x) layered mixed crystals (0.25 <= x <= 1): Compositional dependence of the mode frequencies and line widths
Güler, Işıkhan; Hasanlı, Nızamı (2011-09-15)
The Raman spectra of TlInS2xSe2(1-x) layered mixed crystals were studied for a wide composition range (0.25 <= x <= 1) in the frequency region 10-360 cm(-1) at room temperature. The shift of Raman-active phonon frequencies...