Atomic-resolution spectroscopic imaging of ensembles of nanocatalyst particles across the life of a fuel cell

Posted by klaurent Cornell

Kavli Affiliate: Lena Fitting Kourkoutis | First 5 Authors: Huolin L. Xin, Julia A. Mundy, Zhongyi Liu, Randi Cabezas, Robert Hovden | Summary: The thousandfold increase in data-collection speed enabled by aberration-corrected optics allows us to overcome an electron microscopy paradox – how to obtain atomic-resolution chemical structure in individual nanoparticles, yet record a statistically […]


Continue.. Atomic-resolution spectroscopic imaging of ensembles of nanocatalyst particles across the life of a fuel cell

Measuring the spatial extent of individual localized photonic states

Posted by klaurent Delft

Kavli Affiliate: Kobus Kuipers | First 5 Authors: Marko Spasenovic, Daryl M. Beggs, Philippe Lalanne, Thomas F. Krauss, L. | Summary: We measure the spatial extent of individual localized photonic states in a slow-light photonic crystal waveguide. The size of the states is measured by perturbing each state individually through a local electromagnetic interaction with […]


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A photonic crystal nanocavity laser in an optically very thick slab

Posted by klaurent Caltech

Kavli Affiliate: Axel Scherer | First 5 Authors: Se-Heon Kim, Jingqing Huang, Axel Scherer, , | Summary: A photonic crystal (PhC) nanocavity formed in an optically very thick slab can support reasonably high-Q modes for lasing. Experimentally, we demonstrate room-temperature pulsed lasing operation from the PhC dipole mode emitting at 1324 nm, which is fabricated […]


Continue.. A photonic crystal nanocavity laser in an optically very thick slab

A photonic crystal nanocavity laser in an optically very thick slab

Posted by klaurent Caltech

Kavli Affiliate: Axel Scherer | First 5 Authors: Se-Heon Kim, Jingqing Huang, Axel Scherer, , | Summary: A photonic crystal (PhC) nanocavity formed in an optically very thick slab can support reasonably high-Q modes for lasing. Experimentally, we demonstrate room-temperature pulsed lasing operation from the PhC dipole mode emitting at 1324 nm, which is fabricated […]


Continue.. A photonic crystal nanocavity laser in an optically very thick slab