155 citations · 266 across the 9 of their papers we have counts for
9 papers
Multi-channel OOK Communication by Using Frequency-multiplexed Switchable Metasurface
Parsa Farzin, Kasra Rouhi, Seyed Ehsan Hosseininejad
Programmable metasurfaces have recently attracted considerable interest for their versatile applications in areas such as beam steering, holography, and wireless communications, ut…
Multichannel joint-polarization-frequency-modulation encrypted metasurface in secure THz communication
Abbas Ozgoli, Parsa Farzin, Mohammad Javad Hajiahmadi +1
Since the discovery of wireless telegraphy, wireless communication via electromagnetic (EM) signals has become a standard solution to meet the growing demand for information transf…
Near-Field Optical MIMO Communication with Polarization-dependent Metasurfaces
Shamsi Soleimani, Kasra Rouhi, Ali Momeni
The ability to control waves at the nanoscale has attracted considerable attention to ultrathin metasurface lenses (metalenses) in optical imaging and encryption systems. We propos…
Switchable and Simultaneous Spatiotemporal Analog Computing
Ali Momeni, Kasra Rouhi, Romain Fleury
Optical wave-based computing has enabled the realization of real-time information processing in both space and time domains. In the past few years, analog computing has experienced…
Digital Metasurface Based on Graphene: An Application to Beam Steering in Terahertz Plasmonic Antennas
Seyed Ehsan Hosseininejad, Kasra Rouhi, Mohammad Neshat +3
Metasurfaces, the two-dimensional counterpart of metamaterials, have caught great attention thanks to their powerful capabilities on manipulation of electromagnetic waves. Recent t…
Multifocal Terahertz Lens with Adjustable Focal Points
Ali Abdolali, Roya Kargar, Kasra Rouhi
The conventional lens's tunability drawback always restricts their application compared to the metasurface lens (metalens). On the other side, reconfigurable metalenses offer the b…
Wideband THz Low-Scattering Surface Based on Combination of Diffusion and Absorption
Kasra Rouhi, Ali Abdolali, Susan Fallah
In this paper, a wideband and low-scattering metasurface in terahertz (THz) is introduced. The proposed coding metasurface is composed of four different graphene square patches in…
Tunable Multifocal THz Metalens Based on Metal-Insulator Transition of VO2 Film
Roya Kargar, Kasra Rouhi, Ali Abdolali
Recently, metalenses which consist of metasurface arrays, have attracted attention due to their more condensed size in comparison with conventional lenses. In this paper, we propos…
Reprogrammable Graphene-based Metasurface Mirror with Adaptive Focal Point for THz Imaging
Seyed Ehsan Hosseininejad, Kasra Rouhi, Mohammad Neshat +4
Recent emergence of metasurfaces has enabled the development of ultra-thin flat optical components through different wavefront shaping techniques at various wavelengths. However, d…