Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
Permanent URI for this collectionhttps://hdl.handle.net/11147/7148
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Conference Object Citation - Scopus: 13-D Switching Fabric Node Design(ACTA Press, 2004) Dinleyici, Mehmet Salih; Akın, OsmanIn this work we investigate an all-optical switching node that can be controlled by means of a transient grating, which is formed by interference of two Gaussian beams. This design considers 3-D architecture of switching fabrics.. real profile of Gaussian beams and fast switching time requirements. Four Wave Mixing (FWM) technique is applied in the evanescent field region of waveguide, showing chi((3)) nonlinearity. The formed grating is analysed by standart methods to obtain reflection coefficient and then coupling coefficient for power exchange between waveguides.Conference Object Citation - Scopus: 1Lcd Arkaışık Modüllerinde Moire Etkisinin İncelenmesi(Institute of Electrical and Electronics Engineers Inc., 2007) Dinleyici, Mehmet Salih; Akın, OsmanLCD panellerde, Sıvı Kristal (Liquid Crystal) camdan önce parlak ve homojen bir ışık dağılımı elde etmek için LCD Arkaışık Modülünün içinde Dağıtıcı tabaka, Dağıtıcı filmler ve Parlaklık Arttırıcı Film (Brightness Enhancement Film – BEF) kullanılır. Ancak modülün en üstünde kullanılan dağıtıcı film, ışığı dağıtmanın ve BEF’i korumanın yanında Moire Etkisini önlemek için de kullanılabilir. Bu çalışmada, bahsi geçen bu son dağıtıcı filmin Moire etkisinin yokedilmesi konusundaki rolü incelendi.Conference Object Tam Optik Anahtarlama için Faz Analizi(IEEE, 2006) Dinleyici, Mehmet Salih; Akın, OsmanIn this work we investigate an all-optical switching node that can be controlled by means of a transient grating, which is formed by interference of two Gaussian beams. This design considers phase effect in the reflection of light from transient grating, real profile of Gaussian beams and fast switching time requirements. Four Wave Mixing (FWM) technique is applied in the evanescent field region of waveguide, showing ?(3) nonlinearity. The formed grating is analysed by standart methods to obtain the phase of diffracted light and reflection coefficients to find the power exchange between reflection orders. © 2006 IEEE.Conference Object Citation - WoS: 1Citation - Scopus: 4Polymer Nanofiber-Carbon Nanotube Network Generating Circuits(SPIE, 2018) Mutlu, Mustafa Umut; Akın, Osman; Yıldız, Ümit HakanThe polymer nanofiber carbon nanotube (CNT) based devices attracts attention since they promise high performance for next generation devices such as wearable electronics, ultra-light weighted appliances and foldable devices. This abstract describes the utilization of polymer nanofibers and CNT as major component of low cost foldable photo-resistor. We use polymer nanofiber as template guiding CNTs to generate nanocircuits and conductive sensing network. The controlled combination of CNTs and polymer nanofibers provide opportunities for device miniaturization without loss of performance. The nanofiber-CNT network based photo-resistor exhibits broad band response 400 to 1600 nm that holding promises for ultra-thin devices and new sensing platforms.Conference Object Citation - Scopus: 2Fabrication of Polymer Nanofiber-Conducting Polymer Fabric and Noncontact Motion Sensing Platform(Trans Tech Publications, 2018) Mutlu, Mustafa Umut; Akın, Osman; Demir, Mustafa Muammer; Yıldız, Ümit HakanConductive polymer-electrospun polymer nanofiber network was combined to host iron oxide nanoparticles providing micrometer thick sensing interface. The sensor has fabricated as freestanding fabric exhibiting 10 to 100 KOhm base resistivity upon bias applied. The moving object has been sensed through the electrostatic interactions between fibers and object. The sensing range has been found to be 1-5 cm above the surface of fabric. By the controlled combination of conductive polymers electrospun polymer nanofibers effective device miniaturization has been provided without loss of performance. The noncontact motion sensor platform has unique flexibility and light weight holding a potential for wearable sensor technology.