Measurement of the time coherence of the single photons emitted by CdSe nanocrystals using photon correlation Fourier spectroscopy (PCFS)

In this paper, an original method which is called photon correlation Fourier spectroscopy (PCFS), is presented. This allows to achieve a high resolution in both the temporal and spectral domain, and measure the emission coherence in spite of weak emission and fast spectral diffusion. A Michelson interferometer is used to get a spectral resolution lower than 1mueV.