140 citations · 195 across the 8 of their papers we have counts for
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GHz-rate optical phase shift in light matter interaction-engineered, silicon-ferroelectric nematic liquid crystals
Iman Taghavi, Omid Esmaeeli, Sheri Jahan Chowdhury +10
Organic electro-optic materials have demonstrated promising performance in developing electro-optic phase shifters. Their integration with other silicon photonic processes, nanofab…
Geometry-dependent two-photon absorption followed by free-carrier absorption in AlGaAs waveguides
Daniel H. G. Espinosa, Stephen R. Harrigan, Kashif M. Awan +2
Nonlinear absorption can limit the efficiency of nonlinear optical devices. However, it can also be exploited for optical limiting or switching applications. Thus, characterization…
Hyperpolarizability of plasmonic meta-atoms in metasurfaces
M. Saad Bin-Alam, Joshua Baxter, Kashif M. Awan +7
Plasmonic metasurfaces are promising as enablers of nanoscale nonlinear optics and flat nonlinear optical components. Nonlinear optical responses of such metasurfaces are determine…
Tunable Four-Wave Mixing in AlGaAs Waveguides of Three Different Geometries
Daniel H. G. Espinosa, Kashif M. Awan, Mfon Odungide +3
The AlGaAs material platform has been intensively used to develop nonlinear photonic devices on-a-chip, thanks to its superior nonlinear optical properties. We propose a new AlGaAs…
Demonstration of Optical Nonlinearity in InGaAsP/InP Passive Waveguides
Shayan Saeidi, Payman Rasekh, Kashif M. Awan +3
We report on the study of the third-order nonlinear optical interactions in InGaAsP/InP strip-loaded waveguides. The material composition and waveguide…
Enhanced spectral sensitivity of a chip-scale photonic-crystal slow-light interferometer
Omar S. Magaña-Loaiza, Boshen Gao, Sebastian A. Schulz +4
We experimentally demonstrate that the spectral sensitivity of a Mach-Zehnder (MZ) interferometer can be enhanced through structural slow light. We observe a 20 times enhancement b…