Publications de Foziyeh Sohrabi

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

Hatice Altug, Dordaneh Etezadi, Foziyeh Sohrabi, Ershad Mohammadi

Nature Research2021

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

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

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

Membrane activity detection in cultured cells using phase-sensitive plasmonics

Liliane Glauser, Johannes Gräff, Xiaokang Li, Jose Vicente Sanchez Mut, Yasaman Jahani, Foziyeh Sohrabi, Ershad Mohammadi

Despite the existence of various neural recording and mapping techniques, there is an open territory for the emergence of novel techniques. The current neural imaging and recording techniques suffer from invasiveness, a time-consuming labeling process, poo ...

2020

Ultrabroadband 3D invisibility with fast-light cloaks

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

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

Gain enhancement of circular waveguide antennas using near-zero index metamaterials

Kosmas Tsakmakidis, Foziyeh Sohrabi, Ershad Mohammadi

In this article, a rigorous analytical methodology is introduced for designing near-zero refractive index metamaterials (NZIMs). Our proposed NZIM media is realized by three stacked layers of perforated metallic surfaces, each layer composed of a fishnet-l ...

WILEY2019

Role of higher order plasmonic modes in one-dimensional nanogratings

Foziyeh Sohrabi, Ershad Mohammadi

By theoretically investigating the optical behavior of one-dimensional gold nanogratings using Fourier Modal Method, we have shown that both integer and non-integer multiples of surface plasmon polariton wavelengths should be taken into consideration in sp ...

SPRINGER2019

Tunable polarization-sensitive optical nanoswitches based on spheroidal core-shell nanoparticles

Kosmas Tsakmakidis, Foziyeh Sohrabi, Ershad Mohammadi

2018