arXiv subjects

G. Wrigge

Publications and source records attributed to G. Wrigge.

2 recordsLinked to original sources

arXiv2007

Scanning Near-Field Optical Coherent Spectroscopy of Single Molecules at 1.4 Kelvin

We present scanning near-field extinction spectra of single molecules embedded in a solid matrix. By varying the molecule-tip separation, we modify the line shape of the spectra, demonstrating the coherent nature of the interaction between the incident laser light and the excited state of the molecule. We compare the measured data with the outcome of numerical calculations and find a very good agreement.

physics.optics↗

arXiv2006

Strong extinction of a laser beam by a single molecule

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.

quant-ph↗