Cathodoluminescence imaging spectroscopy (CL) is a unique way to excite surface plasmon polaritons (SPPs) using the focused electron beam of a scanning electron microscope. The electron beam acts as a point source for SPPs with an excitation probability that is proportional to the local density of optical states.

We have studied the confinement of surface plasmon polaritons (SPPs) in one-, two-, and three-dimensional plasmonic resonator structures. Using CL we have mapped the plasmonic cavity modes in the resonators and extracted cavity quality factor and mode volume.


Seminar, May 11, 2009, 12:00. Seminar Room

Hosted by Prof. Niek van Hulst