25 citations · 72 across the 8 of their papers we have counts for
8 papers
Maximum Q-factor of planar inductors
Mohamed Ismail Abdelrahman, Matteo Ciabattoni, Francesco Monticone
On-chip inductor design plays a critical role in the advancement of radio-frequency integrated circuits (RFICs). Inductors typically occupy a substantial portion of the chip area a…
How Thin and Efficient Can a Metasurface Reflector Be? Universal Bounds on Reflection for Any Direction and Polarization
Mohamed Ismail Abdelrahman, Francesco Monticone
Light reflection plays a crucial role in a number of modern technologies. In this paper, analytical expressions for maximal reflected power in any direction and for any polarizatio…
Cloaked near-field probe for non-invasive near-field optical microscopy
Felipe Bernal Arango, Filippo Alpeggiani, Donato Conteduca +7
Near-field scanning optical microscopy is a powerful technique for imaging below the diffraction limit, which has been extensively used in bio-medical imaging and nanophotonics. Ho…
Physical limitations on broadband invisibility based on fast-light media
Mohamed Ismail Abdelrahman, Zeki Hayran, Aobo Chen +1
This note is a comment on a recent article [Tsakmakidis, et al., Nat Commun 10 (2019)] that presents a thought-provoking proposal to overcome the bandwidth restrictions of invisibi…
Broadband and giant nonreciprocity at the subwavelength scale in magnetoplasmonic materials
Mohamed Ismail Abdelrahman, Francesco Monticone
We unveil a previously overlooked wave propagation regime in magnetized plasmonic (gyrotropic) materials with comparable plasma and cyclotron frequencies, which enables a giant and…
Experimental demonstration of spectrally-broadband Huygens sources using low-index spheres
Mohamed Ismail Abdelrahman, Hassan Saleh, Ivan Fernandez-Corbaton +3
Manipulating the excitation of resonant electric and magnetic multipole moments in structured dielectric media has unlocked many sophisticated electromagnetic functionalities. This…
Completeness and divergence-free behavior of the quasi-normal modes using causality principle
Mohamed Ismail Abdelrahman, Boris Gralak
A fundamental feature of the quasi-normal modes (QNMs), which describe light interaction with open (leaky) systems like nanoparticles, lies in the question of the completeness of t…
Modal analysis of wave propagation in dispersive media
M. Ismail Abdelrahman, B. Gralak
Surveys on wave propagation in dispersive media have been limited since the pioneering work of Sommerfeld [Ann. Phys. 349, 177 (1914)] by the presence of branches in the integral e…