Erdem Ogut

Erdem Ogut
Institut für Photonische Technologien | IPHT · Nanoscopy

Doctor of Philosophy

About

12
Publications
1,691
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54
Citations
Introduction
Current research interests: Plasmonics, Plasmonic Nanostructures, Metamaterials, Smart Materials, Piezoelectrics. Methods and Techniques: Finite Element Method Simulation, Microfabrication.

Publications

Publications (12)
Article
Full-text available
Emerging applications in nanotechnology, such as superresolution imaging, ultra-sensitive biomedical detection, and heat-assisted magnetic recording, require plasmonic devices that can generate intense optical spots beyond the diffraction limit. One of the important drawbacks of surface plasmon focusing structures is their complex design, which is...
Conference Paper
Nowadays, microstrip antennas, with the advantages of low cost, easy to use and easy production have quite wide application area. At this paper, the design criteria of a rectangular microstrip antenna is investigated and computer aided analyses are performed. Two antenna designs have been realised which the operating frequencies are 900 MHz and 180...
Article
Full-text available
Heat-assisted magnetic recording (HAMR) is an emerging technology that has increased the areal density of conventional recording techniques for hard disc drives. Integrated heads have enabled this increase through localized heating of the recording media during the recording process. One of the problems in integrating magnetic heads with plasmonic...
Article
Full-text available
It is shown that the polarization states of optical spots at the nanoscale can be manipulated to various points on the Poincaré sphere using a plasmonic nanoantenna. Linearly, circularly, and elliptically polarized near-field optical spots at the nanoscale are achieved with various polarization states on the Poincaré sphere using a plasmonic nanoan...
Conference Paper
Birefringence and dichroism of plasmonic nano-antennas are investigated. We demonstrated that birefringent and dichroic behaviour of a cross-dipole nanoantenna is due to a length difference, and a relative plasmonic enhancement of the antenna particles, respectively.
Article
Full-text available
With advances in nanotechnology, obtaining circularly and elliptically polarized optical spots beyond the diffraction limit is an emerging need for plasmonic applications. Two techniques are suggested to obtain circularly and elliptically polarized near-field radiation using subwavelength apertures. It is demonstrated that a square aperture can med...
Article
Full-text available
Diffraction-limited circularly polarized electro-magnetic radiation has been widely used in the literature for various applications at both optical and microwave fre-quencies. With advances in nanotechnology, emerging plas-monic nano-optical applications, such as all-optical mag-netic recording, require circularly polarized electromagnetic radiatio...
Article
Electromagnetic radiation beyond the diffraction limit with a particular polarization emerges as a need for plasmonic applications. One of these applications is all-optical magnetic recording, which requires circularly-polarized electromagnetic radiation. In this study, a plasmonic cross-dipole nano-antenna is illuminated with diffraction-limited l...
Article
Full-text available
With advances in nanotechnology, emerging plasmonic nano-optical applications, such as all-optical magnetic recording, require circularly-polarized electromagnetic radiation beyond the diffraction limit. In this study, a plasmonic cross-dipole nano-antenna is investigated to obtain a circularly polarized near-field optical spot with a size smaller...

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