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Manipulating light with mass of massless graphene electrons +

October 27, 2014 - 11:00am
Speaker: 
Donhee Ham
Institution: 
Harvard
While one of the most celebrated physics of graphene is the behavior of its individual electrons as massless relativistic particles, they do exhibit mass when they move together, which is at the heart of graphene plasmonics. I will discuss our recent measurement of this mass of massless graphene electrons, and its application in ultra-subwavelength plasmonic devices at THz frequencies. And on a different topic, I will introduce our program for biomolecular NMR. NMR spectroscopy is one of the most powerful bio-analytical tools with its ability to elucidate 3D structure & function of bio molecules. Particularly, its use in structural biology and pharmaceutical screening has proven enormously fruitful. But it is inherently too slow while the workload of modern biology & medicine continues to increase. I will discuss our biomolecular NMR work using silicon chips and our vision to enable high-throughput biomolecular NMR.
 
Host: James Williams
CSS 2400
College Park, MD 20742