Molecules as Sources for Indistinguishable Single Photons

Details Molecules as Sources for Indistinguishable Single Photons Molecules as Sources for Indistinguishable Single Photons

2008-10-23

arxiv.org/abs/0810.4258v1

Physics

Quantum Physics

Accepted for publication in J. Mod. Opt. This is the original submitted version

Scientific paper

10.1080/09500340802464657

We report on the triggered generation of indistinguishable photons by solid-state single-photon sources in two separate cryogenic laser scanning microscopes. Organic fluorescent molecules were used as emitters and investigated by means of high resolution laser spectroscopy. Continuous-wave photon correlation measurements on individual molecules proved the isolation of single quantum systems. By using frequency selective pulsed excitation of the molecule and efficient spectral filtering of its emission, we produced triggered Fourier-limited single photons. In a further step, local electric fields were applied to match the emission wavelengths of two different molecules via Stark effect. Identical single photons are indispensible for the realization of various quantum information processing schemes proposed. The solid-state approach presented here prepares the way towards the integration of multiple bright sources of single photons on a single chip.

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