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Phys Rev Lett. 2007 Jan 19;98(3):033601. Epub 2007 Jan 17.

Strong extinction of a laser beam by a single molecule.

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  • 1Laboratory of Physical Chemistry, ETH Zurich, CH-8093 Zurich, Switzerland.


We present an experiment where a single molecule strongly affects the amplitude and phase of a laser field emerging from a subwavelength aperture. We achieve a visibility of -6% in direct and +10% in cross-polarized detection schemes. Our analysis shows that a close to full extinction should be possible using near-field excitation.

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