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Minireview on Disordered Optical Metasurfaces
P. Lalanne, A. Dmitriev, C. Rockstuhl +2
The use of coherent wave phenomena to enhance device performance is a cornerstone of modern optics. In juxtaposition to (locally) periodic metasurfaces, their disordered counterpar…
Near-field Imaging of Optical Resonances in Silicon Metasurfaces Using Photoelectron Microscopy
Alex Boehm, Sylvain D. Gennaro, Chloe F. Doiron +5
Precise control of light-matter interactions at the nanoscale lies at the heart of nanophotonics. Experimental examination at this length scale is challenging, however, since the c…
Terahertz pulse generation with binary phase control in non-linear InAs metasurface
Hyunseung Jung, Lucy L. Hale, Sylvain D. Gennaro +9
The effect of terahertz (THz) pulse generation has revolutionized broadband coherent spectroscopy and imaging at THz frequencies. However, THz pulses typically lack spatial structu…
Sub picosecond steering of ultrafast incoherent emission from semiconductor metasurfaces
Prasad P. Iyer, Nicholas Karl, Sadhvikas Addamane +3
The ability to dynamically steer fs pulses from a monolithically integrated source is a critical milestone for the fields of nanophotonics and ultrafast optics. The nascent field o…
Nonlinear and Ultrafast All-Dielectric Metasurfaces at the Center for Integrated Nanotechnologies
Sylvain D. Gennaro, Raktim Sarma, Igal Brener
Metasurfaces control optical wavefronts via arrays of nanoscale resonators laid out across a surface. When combined with III-V semiconductors with strong optical nonlinearities, a…
Cascaded optical nonlinearities in dielectric metasurfaces
Sylvain D. Gennaro, Chloe F. Doiron, Nicholas Karl +3
Since the discovery of the laser, optical parametric nonlinearities have been at the core of efficient light conversion sources. Typically, thick transparent crystals or quasi-phas…