Advisors
Now showing items 1-20 of 24
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All-chalcogenide core-shell fibers for nonlinear applications
(Bilkent University, 2015-11)The extreme spectral broadening phenomenon called as Supercontinuum generation is considered as one of the most striking phenomenon in nonlinear optics. Due to their broad spectra and uniformly distributed power over the ... -
Artificial olfaction with hollow core bragg fiber arrays
(Bilkent University, 2014)An optoelectronic nose for the analysis of alcohols (ethanol and methanol) in chemically complex environments is reported. The cross-responsive sensing unit of the optoelectronic nose is an array of three distinct hollow ... -
Bio-inpired all-polymer 2d photonic crystal fibers = Doğadan esinlenilmiş tamamen polimer 2B fotonik kristal fiberleri
(Bilkent University, 2014)Photonic crystals are essential part of the integrated systems which require manipulation of light in a manner that all-optical polarization and re ection properties are completely calibrated to necessary levels. However, ... -
Chalcogenide micro and nanostructures and applications
(Bilkent University, 2014)Chalcogenides, which are glasses consist of S, Se and Te elements, are promising materials for photonics as silicon for modern electronics, due to their extraordinary material properties such as high nonlinearity and ... -
Coupled surface plasmon structures and applications
(Bilkent University, 2009)Surface plasmons have attracted great interest during past decades due to their unique physical properties. In this thesis, we study grating-coupled surface plasmons for sensing and filtering applications. We first present ... -
Design and development of novel large scale applications in micro/nanophotonics and nanobiotechnology
(Bilkent University, 2014)Developments in micro/nanophotonics and nanobiotechnology creates new opportunities regarding development of devices with unprecedented capabilities, which could improve human civilization substantially. On the other ... -
Design and fabrication of resonant nanoantennas on chalcogenide glasses for nonlinear photonic applications
(Bilkent University, 2013)Optical nanoantennas are the metallic nanostructures which confine electromagnetic waves into sub-wavelength volumes at resonant conditions. They are used for various applications including biological and chemical sensing, ... -
Fabrication of novel core-shell nanostructures for photonics applications
(Bilkent University, 2013)Developments in nanoscale fabrication and characterization techniques have led to fundamental changes in the scientific understanding of many fields, and novel nanostructures have been utilized to investigate the conceptual ... -
Fluorescent aerogel films for TNT sensing
(Bilkent University, 2009)Silica aerogels are unique materials with extraordinary properties such as, high porosity, large surface area and low refractive indices. Due to these properties, they can be applied to a wide range of areas including, ... -
Formation of pyrene excimers in mesoporous organically modified silica thin films for visual detection of nitroaromatic explosives
(Bilkent University, 2013)Pyrene is a polycyclic aromatic hydrocarbon compound. Pyrene has been extensively applied as probing and sensing molecule because of excimer fluorescence which is formed upon interaction of two pyrene molecules in close ... -
High performance multimaterial fibers and devices
(Bilkent University, 2016-06)Fabricating low energy requiring and self-powered flexible electronic devices can decrease world energy need since energy demand seems to be one of the most fundamental problems in the near future. An excellent solution ... -
Hollow core photonic bandgap fibers for medical applications
(Bilkent University, 2009)The design, fabrication and characterization of photonic band gap (PBG) based optical polymer fibers is discussed. Unlike conventional total internal reflection (TIR) fibers, used primarily in telecommunications, PBG ... -
Lasing action and supercontinuum generation in nano- and micro-structures
(Bilkent University, 2009)Supercontinuum generation is the substantial broadening of electromagnetic radiation due to nonlinear interactions with the transporting medium. It nds application in a wide range of areas, including spectroscopy, ... -
Light scattering from core-shell nano-structures : structural coloration
(Bilkent University, 2013)In this work, we produced kilometer-long semiconducting cylindrical nanostructures by using a top-to-bottom nano-fabrication technique which was recently developed in our research group. Comparison of commonly used ... -
Micro and nanostructured devices for thermal analysis
(Bilkent University, 2008)The recent advent of micro and nano devices increased the interest in small scale material properties, such as elasticity, conductivity or heat capacity, which are considerably different from their bulk counterparts due ... -
Micro and nanotextured polymer fibers for open microfluidics
(Bilkent University, 2016-01)Microfluidics is the science of controlling low volumes of fluids in a microchannel. It is used in diverse area of applications such as chemical and biological analysis. Benefits of microfluidics are fast analysis, short ... -
Microfluidics for plasmonic sensors
(Bilkent University, 2009)In this thesis, we integrate microfluidics with grating-coupled surface plasmon configurations for sensing applications. First, in order to observe optimal excitations, we introduce procedures for modification of the ... -
Multi-frequency fluxgate magnetic force microscopy
(Bilkent University, 2008)In the recent years, progress in atomic force microscopy (AFM) led to the multifrequency imaging paradigm in which the cantilever-tip ensemble is simultaneously excited by several driving forces of different frequencies. ... -
Nanostructured materials and devices for sensing and energy harvesting applications
(Bilkent University, 2015-08)A closer look into the fundamental challenges of the modern world reveals that the increasing demand for energy threatens the evolution of science and technology. Energy-efficiency is thus a fundamental issue in engineering ... -
Nanostructured materials for biological imaging and chemical sensing
(Bilkent University, 2014-11)In the recent years, the design and synthesis of fluorescent nanoparticles for biological and chemical sensing applications have received considerable attention due to the excellent photostability and emission intensity ...
