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Observation of non-diffracting behavior at the single-photon level | Hector Cruz-Ramirez
; Roberto Ramirez-Alarcon
; Francisco J. Morelos
; Pedro A. Quinto-Su
; Julio C. Gutierrez-Vega
; Alfred B. U'Ren
; | Date: |
20 Jun 2013 | Abstract: | We demonstrate the generation of non-diffracting heralded single photons,
i.e. which are characterized by a single-photon transverse intensity
distribution which remains essentially unchanged over a significant propagation
distance. For this purpose we have relied on the process of spontaneous
parametric downconversion (SPDC) for the generation of signal and idler photon
pairs, where our SPDC crystal is pumped by a Bessel-Gauss (BG) beam. Our
experiment shows that the well-understood non-diffracting behavior of a BG beam
may be directly mapped to the signal-mode, single photons heralded by the
detection of a single idler photon. In our experiment, the heralded single
photon is thus arranged to be non-diffracting without the need for projecting
its single-photon transverse amplitude, post-generation, in any manner. | Source: | arXiv, 1306.4909 | Services: | Forum | Review | PDF | Favorites |
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