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Spectral density matrix of a single photon measured | | Wojciech Wasilewski
; Piotr Kolenderski
; Robert Frankowski
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; | | Date: |
21 Feb 2007 | | Abstract: | We propose and demonstrate a method for measuring the spectral density matrix of a single photon pulse. The method is based on registering Hong-Ou-Mandel interference between photon to be measured and a pair of attenuated and suitably delayed laser pulses described by a known spectral amplitude. The density matrix is retrieved from a two-dimensional interferogram of coincidence counts. The method has been implemented for a type-I downconversion source, pumped by ultrashort laser pulses. The experimental results agree well with a theoretical model which takes into account the temporal as well as spatial effects in the source. | | Source: | arXiv, quant-ph/0702200 | | Services: | Forum | Review | PDF | Favorites | |
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