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These articles were highlighted on the covers of the Advanced Optical Materials June issue:
Nanobubbles
To overcome optical path length limitations of atomically thin 2D films, all-optical switching is demonstrated in graphene nanobubbles. Q. Bao, K. P. Loh, T. Venkatesan, and co-workers show how thermally stressing graphene leads to an array of nanobubbles, allowing a large optical phase shift due to their vertical side walls and added curvature.
Sensors
A metamaterial-based sensor composed of thin layers of metal and polymer is deposited on a highly ordered porous alumina membrane by I. Aharonovich and co-workers. This device is shown to be capable of sensing various liquids and biomolecules with sensitivities approaching 5000 nanometers per refractive index unit.
Electrooptics
F. Rotermund, O.-P. Kwon, and co-workers describe organic electro-optic crystals based on a new acentric core structure OHQ provide optimal molecular packing, which maximizes the electro-optic response and allows intense broadband THz generation with a THz generation efficiency over 30 times higher than the widely used inorganic ZnTe.
