Polycarpou C, Cassemiro KN, Venturi G, Zavatta A, Bellini M. Adaptive detection of arbitrarily shaped ultrashort quantum light states.
Phys Rev Lett 2012;
109:053602. [PMID:
23006172 DOI:
10.1103/physrevlett.109.053602]
[Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2012] [Revised: 06/28/2012] [Indexed: 06/01/2023]
Abstract
A quantum state of light is the excitation of a particular spatiotemporal mode of the electromagnetic field. A precise control of the mode structure is therefore essential for processing, detecting, and using photonic states in novel quantum technologies. Here we demonstrate an adaptive scheme, combining techniques from the fields of ultrafast coherent control and quantum optics, for probing the arbitrary complex spectrotemporal profile of an ultrashort quantum light pulse. The ability to access the modal structure of a quantum light state could boost the capacity of current quantum information protocols.
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