110 citations · 570 across the 13 of their papers we have counts for
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Two-dimensional Materials with Giant Optical Nonlinearities Near the Theoretical Upper Limit
Alireza Taghizadeh, Kristian S. Thygesen, Thomas G. Pedersen
Nonlinear optical (NLO) phenomena such as harmonic generation, Kerr, and Pockels effects are of great technological importance for lasers, frequency converters, modulators, switche…
Plasmons in ultra-thin gold slabs with quantum spill-out: Fourier modal method, perturbative approach, and analytical model
Alireza Taghizadeh, Thomas G. Pedersen
We numerically study the effect of the quantum spill-out (QSO) on the plasmon mode indices of an ultra-thin metallic slab, using the Fourier modal method (FMM). To improve the conv…
Linear and nonlinear optical response of crystals using length and velocity gauges: Effect of basis truncation
Alireza Taghizadeh, F. Hipolito, T. G. Pedersen
We study the effects of a truncated band structure on the linear and nonlinear optical response of crystals using four methods. These are constructed by (i) choosing either length…
Quasi Bound States in the Continuum with Few Unit Cells of Photonic Crystal Slab
Alireza Taghizadeh, Il-Sug Chung
Bound states in the continuum (BICs) in photonic crystal slabs represent the resonances with an infinite quality(Q)-factor, occurring above the light line for an infinitely periodi…
Numerical Investigation of Vertical Cavity Lasers with Subwavelength Gratings Using the Fourier Modal Method
Alireza Taghizadeh, Jesper Mørk, Il-Sug Chung
We show the strength of the Fourier modal method (FMM) for numerically investigating the optical properties of vertical cavities including subwavelength gratings. Three different t…
Vertical-Cavity In-plane Heterostructures: Physics and Applications
Alireza Taghizadeh, Jesper Mørk, Il-Sug Chung
We show that the in-plane heterostructures realized in vertical cavities with high contrast grating(HCG) reflector enables exotic configurations of heterostructure and photonic wel…
Hybrid vertical-cavity laser with lateral emission into a silicon waveguide
Gyeong Cheol Park, Weiqi Xue, Alireza Taghizadeh +4
We experimentally demonstrate an optically-pumped III-V/Si vertical-cavity laser with lateral emission into a silicon waveguide. This on-chip hybrid laser comprises a distributed B…