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Journal Article

Single-Photon Spectroscopy of a Single Molecule


Goetzinger,  S.
Sandoghdar Division, Max Planck Institute for the Science of Light, Max Planck Society;


Sandoghdar,  V.
Sandoghdar Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Rezus, Y. L. A., Walt, S. G., Lettow, R., Renn, A., Zumofen, G., Goetzinger, S., et al. (2012). Single-Photon Spectroscopy of a Single Molecule. Physical Review Letters, 108: 093601. doi:10.1103/PhysRevLett.108.093601.

Cite as: http://hdl.handle.net/11858/00-001M-0000-002D-68F3-1
Efficient interaction of light and matter at the ultimate limit of single photons and single emitters is of great interest from a fundamental point of view and for emerging applications in quantum engineering. However, the difficulty of generating single-photon streams with specific wavelengths, bandwidths, and power as well as the weak interaction probability of a single photon with an optical emitter pose a formidable challenge toward this goal. Here, we demonstrate a general approach based on the creation of single photons from a single emitter and their use for performing spectroscopy on a second emitter situated at a distance. While this first proof of principle realization uses organic molecules as emitters, the scheme is readily extendable to quantum dots and color centers. Our work ushers in a new line of experiments that provide access to the coherent and nonlinear couplings of few emitters and few propagating photons.