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- Research Institute for Astronomy and Astrophysics of MaraghIR261 papers
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16 papers · 1 filter
Patterns for ghost imaging generated by the Ising model
Hamidreza Oliaei-Moghadam, Chane Moodley, Mahmood Hosseini-Farzad
We offer new illumination patterns for imaging in all-digital ghost imaging (GI) systems. The digital patterns, written as computer generated holograms on spatial light modulators…
Optical amplification of surface plasmon polaritons in a graphene single layer integrated with a random grating
Abbas Ghasempour Ardakani, Peymaneh Rafieipour
In this paper, we design and simulate a terahertz (THz) controllable active plasmonic waveguide structure based on a single graphene layer that is placed on a random silicon gratin…
Reflectionless Plasmonic Right-Angled Waveguide Bend and Divider Using Graphene and Transformation Optics
Samaneh Pakniyat, Shahrokh Jam, Alireza Yahaghi +1
In this work, a plasmonic right-angled waveguide bend and divider are proposed. Using the Transformation Optics (TO) approach the transformation media of a bend and a T-shaped divi…
Buried and ridge graphene-based silicon waveguides for broadband polarization-insensitive amplitude and phase modulators
Mohamad Najafi Hajivar, Mahmood Hosseini-Farzad
In this paper, four easy-to-fabricate graphene-based Si waveguide modulators are presented to overcome the strong polarization dependency of graphene-based modulators. The modulati…
Resonant random laser emission from graphene quantum dot doped dye solutions
Peymaneh Rafieipour, Abbas Ghasempour Ardakani, Fatemeh Daneshmand
Graphene quantum dots (GQDs) are more promising than other kinds of semiconductor QDs because of their photostability and biocompatibility in different applications such as bioimag…
Fluorescence coherence with anodic aluminum oxide hybrid photonic-plasmonic structure
Ali Reza Hashemi, Mahmood Hosseini-Farzad
A class of hybrid photonic-plasmonic structures (HPPS) with vertical cylindrical cavities is proposed and its performance in providing a coherent light from spontaneous emission is…