Emission of photon pairs at discontinuities of nonlinearity in spontaneous parametric down-conversion
Journal Article
·
· Physical Review. A
- Joint Laboratory of Optics of Palacky University and Institute of Physics of the Academy of Sciences of the Czech Republic, 17 Listopadu 50A, 772 07 Olomouc (Czech Republic)
In order to fulfill the continuity requirements for electric- and magnetic-field amplitudes at discontinuities of {chi}{sup (2)} nonlinearity, additional photon pairs have to be emitted in the area of discontinuity. Generalized two-photon spectral amplitudes can be used to describe properties of photon pairs generated in this process that we call surface spontaneous parametric down-conversion. The spectral structure of such photon pairs is similar to that derived for photon pairs generated in the volume. Surface and volume contributions to spontaneous down-conversion can be comparable as an example of nonlinear layered structures shows.
- OSTI ID:
- 21316503
- Journal Information:
- Physical Review. A, Journal Name: Physical Review. A Journal Issue: 4 Vol. 80; ISSN 1050-2947; ISSN PLRAAN
- Country of Publication:
- United States
- Language:
- English
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