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This page contains a single entry from the blog posted on November 11, 2009 3:30 AM.

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Seminar: Wednesday, November 11, 2009 at 3:30 p.m.

Nonlinear Optics at the Nanoscale
Dr. Eric Mazur
Harvard University

We explore nonlinear optical phenomena at the nanoscale by launching femtosecond laser pulses into long silica nanowires. Using evanescent coupling between wires we demonstrate a number of nanophotonic devices. At high intensity the nanowires produce a strong supercontinuum over short interaction lengths (less than 20 mm) and at a very low energy threshold (about 1 nJ), making them ideal sources of coherent white-light for nanophotonic applications. The spectral broadening reveals an optimal fiber diameter to enhance nonlinear effects with minimal dispersion. We also present a device that permits a number of all-optical logic operations with femtosecond laser pulses in the nanojoule range.


Location: Physics Bldg., Room 401

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