5 papers · 1 filter
Hybrid Longitudinal-Transverse Propagating Electric Fields in Photonic Crystal Waveguides
Yanrong Zhang, Hooman Barati Sedeh, Christopher S. Whittington +3
In a uniform, source-free, and unbounded medium, Maxwell's equations require electromagnetic waves to be purely transverse. However, when a beam of light is tightly focused or stro…
Structuring Polarization States of Light in Space and Time
Danilo Gomes Pires, Jiaren Tan, Hooman Barati Sedeh +1
The spatiotemporal sculpturing of light beams with arbitrary phase and polarization topologies has garnered significant attention in recent years due to its potential to advance op…
Nonlinear Nonlocal Metasurface for Harmonic Generation and Manipulation
Hooman Barati Sedeh, Yuruo Zheng, Jiaren Tan +7
The discovery of second harmonic generation in 1961 marked the birth of nonlinear optics, unlocking a range of applications from frequency conversion to quantum light generation. Y…
Scattering-free routing of surface plasmon polariton waves with optical null medium
Ali Abdolali, Atefeh Ashrafian, Hooman Barati Sedeh +1
Recently, guiding electromagnetic surface waves without sacrificing scattering losses through paths that have arbitrary shape bumps has gained a lot of interest due to its wealth o…
Geometry free materials enabled by transformation optics for enhancing the intensity of electromagnetic waves in an arbitrary domain
Ali Abdolali, Hooman Barati Sedeh, Mohammad Hosein Fakheri
The concentration of electromagnetic waves (EM) is of utmost importance in many engineering applications such as solar-cells. According to the transformation optics (TO) methodolog…