71 citations · 474 across the 17 of their papers we have counts for
17 papers
Polarization-sensitive tunable extraordinary terahertz transmission based on a hybrid metal-vanadium dioxide metasurface
S. Hadi Badri, Sanam Saeidnahaei, Jong Su Kim
A thermally tunable extraordinary terahertz transmission in a hybrid metal-vanadium dioxide (VO2) metasurface is numerically demonstrated. The metasurface consists of a metal sheet…
Subwavelength grating waveguide filter based on cladding modulation with phase-change material grating
S. Hadi Badri, Saeid Gholami Farkoush
Subwavelength engineering and utilizing phase-change materials with large contrast in their optical properties have become powerful design tools for integrated silicon photonics. R…
High-Q Fano resonance in all-dielectric metasurfaces for molecular fingerprint detection
S. Hadi Badri, M. M. Gilarlue, Sanam Saeidnahaei +1
We present and numerically investigate a high-quality factor (high-Q) meta-atom with Fano resonance. Numerical simulations indicate that the designed meta-atom has a single sharp F…
Narrowband-to-broadband switchable and polarization-insensitive terahertz metasurface absorber enabled by phase-change material
S. Hadi Badri, M. M. Gilarlue, Sanam SaeidNahaei +1
A terahertz absorber with controllable and switchable bandwidth and insensitive to polarization is of great interest. Here, we propose and demonstrate a metasurface absorber with s…
Thermally reconfigurable extraordinary terahertz transmission using vanadium dioxide
S. Hadi Badri, Hadi Soofi, Sanam Saeidnahaei S
We numerically demonstrate a reconfigurable extraordinary terahertz transmission based on a phase-change material of vanadium dioxide (VO2). The proposed hybrid metasurface is comp…
Ultra-thin silicon-on-insulator waveguide bend based on truncated Eaton lens implemented by varying the guiding layer thickness
S. Hadi Badri, M. M. Gilarlue, S. G. Gavgani
Silicon-on-insulator (SOI) waveguides with different geometries have been employed to design various integrated optical components. Reducing the bending radius of the SOI waveguide…
Coupling waveguide to SOI waveguide using transformation optics
S. Hadi Badri, M. M. Gilarlue
Silicon nitride () planar waveguide platform combined with silicon-on-insulator (SOI) devices offer a whole new generation of system-on-chip applications. Therefore, effic…
Coupling silica waveguides to photonic crystal waveguides through multilayered Luneburg lens
S. Hadi Badri, M. M. Gilarlue
We present a detailed analysis of a coupler based on the Luneburg lens to couple a silica waveguide to a photonic crystal waveguide. The dependence of coupling efficiency on the le…
Ultrashort waveguide tapers based on Luneburg lens
S. Hadi Badri, M. M. Gilarlue
In integrated photonic circuits, silicon-on-insulator waveguides with different geometries have been employed to realize a variety of components. Therefore, efficient coupling of t…
33 Slot waveguide crossing based on Maxwell's fisheye lens
S. Hadi Badri, M. M. Gilarlue, H. Soofi +1
Intersection of two or more silicon slot waveguides is inevitable in modern optical integrated circuits based on silicon on insulator (SOI) platform. In this article, we design a M…
Controlling branching angle of waveguide splitters based on GRIN lenses
S. Hadi Badri, M. M. Gilarlue, S. G. Gavgani
Designing beam splitting structures with wide branching angles is of great significance. The branching angle of conventional Y-junctions is limited. In this paper, we investigate t…
Polygonal Maxwell's fisheye lens via transformation optics as multimode waveguide crossing
S. Hadi Badri, H. Rasooli Saghai, Hadi Soofi
Multimode waveguide crossings are crucial components for novel mode-division-multiplexing systems. One of the challenges of multimode waveguide routing in MDM systems is decreasing…
Photonic crystal waveguide crossing based on transformation optics
M. M. Gilarlue, S. Hadi Badri
The absolute instruments like the Maxwell's fisheye (MFE) lens with aberration-free imaging properties have found interesting applications such as waveguide crossing. The flat wave…
Multimode waveguide crossing based on square Maxwell's fisheye lens
S. Hadi Badri, H. Rasooli Saghai, Hadi Soofi
Mode-division multiplexing (MDM) is an emerging large-capacity data communication technology utilizing orthogonal guiding modes as independent data streams. One of the challenges o…
Maxwell's fisheye lens as efficient power coupler between dissimilar photonic crystal waveguides
S. Hadi Badri, M. M. Gilarlue
The imaging properties of the Maxwell's fisheye (MFE) lens makes it a viable candidate to implement power coupling between different types of waveguides. A coupler based on the MFE…
Multilayered Maxwell's fisheye lens as waveguide crossing
M. M. Gilarlue, J. Nourinia, Ch. Ghobadi +2
The Maxwell's fisheye (MFE) lens, due to its focusing properties, is an interesting candidate for implementing the crossing of multiple waveguides. The MFE lens is implemented by t…
Photonic crystal waveguide intersection design based on Maxwell's fish-eye lens
M. M. Gilarlue, S. Hadi Badri, H. Rasooli Saghai +2
The number of waveguides crossing an intersection increases with the development of complex photonic integrated circuits. Numerical simulations are presented to demonstrate that Ma…