PerspectiveApplied Physics

Optics in the Nano-World

See allHide authors and affiliations

Science  21 Sep 2001:
Vol. 293, Issue 5538, pp. 2217-2218
DOI: 10.1126/science.1065119

You are currently viewing the summary.

View Full Text

Log in to view the full text

Log in through your institution

Log in through your institution


The invention of near-field scanning optical microscopy (NSOM) enabled the standard resolution limit for optical microscopy to be overcome, thus offering greatly improved spatial resolution. In their Perspective, Koch and Knorr highlight a new technique reported by Guest et al , which combines the high spatial resolution of NSOM with the high spectral resolution offered by coherent nonlinear optical spectroscopy. The authors demonstrate that the technique allows individual quantum states on a quantum dot to be resolved.