Browsing by Author "Dana, Aykutlu"
Now showing items 1-20 of 23
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All-chalcogenide variable infrared filter
(SPIE, 2009)We present the design, fabrication, characterization of spatially variable infrared filter and a demonstration of the filter as a simple infrared spectrometer. A varying photonic band gap filter which consists of thermally ... -
Biocompatible electroactive tetra (aniline)-conjugated peptide nanofibers for neural differentiation
(American Chemical Society, 2018)Peripheral nerve injuries cause devastating problems for the quality of patients' lives, and regeneration following damage to the peripheral nervous system is limited depending on the degree of the damage. Use of ... -
Biosensors for early disease diagnosis
(John Wiley & Sons, 2016-03-11)This chapter focuses on biosensor types, their detection limits, analysis times, and the diseases they are suitable for detecting. In addition, as nanomaterials are an effective means of producing small‐scale diagnostic ... -
CDs have fingerprints too
(Springer, Berlin, Heidelberg, 2009)We introduce a new technique for extracting unique fingerprints from identical CDs. The proposed technique takes advantage of manufacturing variability found in the length of the CD lands and pits. Although the variability ... -
Characterization of multilayer self-organized InAs quantum dot embedded waveguides at 1.3 and 1.5 μm
(IEEE, 2007)In this paper, we characterized the electro-optic coefficient and loss of multilayer InAs quantum dot laser structures at 1309 and 1515 nm. Quantum dot waveguides were grown by molecular beam epitaxy, where the active ... -
Electric field dependence of modulation in multilayer InAs quantum dot waveguides
(IEEE, 2007)The low voltage modulation in InAs quantum dot waveguides is observed in this paper. We have measured the electro-optic coefficient in multilayer quantum dot structures far away from resonance and obtained an enhancement ... -
Electro-optic and electro-absorption characterization of InAs quantum dot waveguides
(Optical Society of America, 2008-03)Abstract Optical properties of multilayer InAs quantum dot waveguides, grown by molecular beam epitaxy, have been studied under applied electric field. Fabry-Perot measurements at 1515 nm on InAs/GaAs quantum dot structures ... -
Hyperspectral stochastic optical reconstruction Raman microscopy for label-free super-resolution imaging using surface enhanced Raman spectroscopy
(Springer, 2015)Super-resolution imaging is an emerging field that has attracted attention in the recent years due to far the reaching impact in biology. All super-resolution techniques use fluorescent labels to image nanoscale biomolecular ... -
Infrared absorption spectroscopy of monolayers with thin film interference coatings
(Optical Society of America, 2017)We report high performance Infrared spectroscopy platforms based on interference coatings on metal using CaF2 dielectric films and Ge2Sb2Te5 (GST) phase-change films. IR vibrational bands of proteins and organic monolayers ... -
Interference coatings for infrared spectroscopy and colorimetric sensing
(OSA, 2018)Constructive interference and strong interference surfaces are created to sense ultrathin probe materials such as monolayer protein molecules using enhanced infrared absorption spectroscopy and colorimetric detection, ... -
Label-free nanometer-resolution imaging of biological architectures through surface enhanced raman scattering
(Nature Publishing Group, 2013)Label free imaging of the chemical environment of biological specimens would readily bridge the supramolecular and the cellular scales, if a chemical fingerprint technique such as Raman scattering can be coupled with super ... -
Linear electro-optic coefficient in multilayer self-organized InAs quantum dot structures
(IEEE, 2007)The electro-optic coefficients of self-organized InAs quantum dot layers in molecular beam epitaxy grown laser structures in reverse bias have been investigated. Enhanced electrooptic coefficients compared to bulk GaAs ... -
Microscopic characterization of peptide nanostructures
(Elsevier, 2012)Peptide-based nanomaterials have been utilized for various applications from regenerative medicine to electronics since they provide several advantages including easy synthesis methods, numerous routes for functionalization ... -
A modular antigen presenting peptide/oligonucleotide nanostructure platform for inducing potent immune response
(Wiley - VCH Verlag GmbH & Co. KGaA, 2017-05)The design and development of vaccines, which can induce cellular immunity, particularly CD8+ T cells hold great importance since these cells play crucial roles against cancers and viral infections. Covalent conjugation ... -
Modulation in InAs quantum dot waveguides
(Optical Society of America, 2007)Modulation in molecular beam epitaxy grown self-assembled InAs quantum dot waveguides have been studied at 1500 nm as a function of wavelength and voltage. Enhanced electro-optic coefficients compared to bulk GaAs were ... -
Modulation of multilayer InAs quantum dot waveguides under applied electric field
(Optical Society of America, 2007)Electric field dependence of optical modulation in self assembled InAs quantum dot waveguides have been studied at 1300 and 1500 nm. Electro-absorption and electro-optic coefficients of these waveguides have been obtained ... -
Multispectral plasmonic structures using native aluminum oxide and aluminum
(OSA, 2017)We report the use of native aluminum oxide to fabricate periodic metal-insulator-metal resonators with simultaneous resonances in the visible and IR wavelengths. The cavity size is in the order of λ3/25000 in the NIR. -
Mussel inspired dynamic cross-linking of self-healing peptide nanofiber network
(Wiley, 2013)A general drawback of supramolecular peptide networks is their weak mechanical properties. In order to overcome a similar challenge, mussels have adapted to a pH-dependent iron complexation strategy for adhesion and curing. ... -
Permanent tuning of optical resonant modes of chalcogenide-coated microresonators
(OSA - The Optical Society, 2020)Chalcogenide materials are promising for optical resonant mode tuning of whispering gallery mode (WGM) microresonators due to their high nonlinearity. In this study, this phenomenon was demonstrated for Ge2Sb2Te5- coated ... -
Plasmonic absorbers for multispectral and broadband absorption
(SPIE, 2012)We present polarization dependent multispectral and broadband plasmonic absorbers in the visible spectrum. The spectral characteristics of these structures are tunable over a broad spectrum. Experimental results are verified ...
