Publications de Dordaneh Etezadi

Reply to 'Physical limitations on broadband invisibility based on fast-light media'

Hatice Altug, Dordaneh Etezadi, Ershad Mohammadi, Foziyeh Sohrabi

Nature Research2021

Blue-shift ultrasensitivity using rhombus-shaped plasmonic crystal on Si3N4 membrane

Bahareh Ghadiani, Dordaneh Etezadi, Yasaman Jahani, Ershad Mohammadi, Foziyeh Sohrabi, Mahdi Tamizifar

Harnessing ultrasensitivity from optical structures to detect tiny changes in the targeted samples is the main goal of scientists in the field of sensor design. In this study, an uncommon rhombus-shape plasmonic structure is proposed for providing blue-shi ...

OPTICAL SOC AMER2020

Hybrid Metal-Dielectric Metasurfaces for Refractive Index Sensing

Olivier Martin, Hatice Altug, Christian Santschi, Dordaneh Etezadi, Raziman Thottungal Valapu, Debdatta Ray

Hybrid metal-dielectric nanostructures have recently gained prominence because they combine strong field enhancement of plasmonic metals and the several low-loss radiation channels of dielectric resonators, which are qualities pertaining to the best of bot ...

AMER CHEMICAL SOC2020

Ultrabroadband 3D invisibility with fast-light cloaks

Hatice Altug, Dordaneh Etezadi, Kosmas Tsakmakidis, Ershad Mohammadi, Foziyeh Sohrabi

An invisibility cloak should completely hide an object from an observer, ideally across the visible spectrum and for all angles of incidence and polarizations of light, in three dimensions. However, until now, all such devices have been limited to either s ...

Nature Research2019

Nanoimaging and Control of Molecular Vibrations through Electromagnetically Induced Scattering Reaching the Strong Coupling Regime

Hatice Altug, Dordaneh Etezadi

2018

Mid-Infrared plasmonic nanoantennas for ultrasensitive detection of proteins and their secondary structure

Dordaneh Etezadi

Engineered plasmonic nanostructures have emerged as powerful sensing platforms and are promoting novel applications in various fields. By providing extreme field confinement down to molecular dimensions and enhancing light-matter interaction at the nanosca ...

EPFL2018

Real-time in-situ secondary structure analysis of protein monolayer with mid-infrared plasmonic nanoantennas

Hilal Lashuel, Dordaneh Etezadi, Hatice Altug

2018

Nanoplasmonic mid-infrared biosensor for in vitro protein secondary structure detection

Giovanni Dietler, Hilal Lashuel, Hatice Altug, Dordaneh Etezadi, Francesco Simone Ruggeri, John Blaine Warner IV

Plasmonic nanoantennas offer new applications in mid-infrared (mid-IR) absorption spectroscopy with ultrasensitive detection of structural signatures of biomolecules, such as proteins, due to their strong resonant near-fields. The amide I fingerprint of a ...

Springer Nature2017

Plasmonic nanohole arrays on Si-Ge heterostructures: An approach for integrated biosensors

Hatice Altug, Liza Carol Andrea Dunbar, Dordaneh Etezadi, Cenk Ibrahim Özdemir

Nanohole array surface plasmon resonance (SPR) sensors offer a promising platform for high-throughput label-free biosensing. Integrating nanohole arrays with group-IV semiconductor photodetectors could enable low-cost and disposable biosensors compatible t ...

Spie-Int Soc Optical Engineering2016

Graphene as Enabling Material for Infrared Plasmonic Biosensors

Hatice Altug, Daniel Rodrigo Lopez, Dordaneh Etezadi, Odeta Limaj

We demonstrate a graphene infrared biosensor for chemical-specific label-free protein detection. Graphene plasmon resonances are dynamically tuned to enhance protein vibrational bands. We show that the extreme light confinement makes graphene plasmons extr ...

IEEE2016