Multiphoton Effects Enhanced due to Ultrafast Photon-Number Fluctuations

Spasibko KY, Kopylov DA, Krutyanskiy VL, Murzina TV, Leuchs G, Chekhova MV (2017)


Publication Type: Journal article

Publication year: 2017

Journal

Book Volume: 119

Article Number: 223603

Journal Issue: 22

DOI: 10.1103/PhysRevLett.119.223603

Abstract

The rate of an n-photon effect generally scales as the nth order autocorrelation function of the incident light, which is high for light with strong photon-number fluctuations. Therefore, "noisy" light sources are much more efficient for multiphoton effects than coherent sources with the same mean power, pulse duration, and repetition rate. Here we generate optical harmonics of the order of 2-4 from a bright squeezed vacuum, a state of light consisting of only quantum noise with no coherent component. We observe up to 2 orders of magnitude enhancement in the generation of optical harmonics due to ultrafast photon-number fluctuations. This feature is especially important for the nonlinear optics of fragile structures, where the use of a noisy pump can considerably increase the effect without overcoming the damage threshold.

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APA:

Spasibko, K.Y., Kopylov, D.A., Krutyanskiy, V.L., Murzina, T.V., Leuchs, G., & Chekhova, M.V. (2017). Multiphoton Effects Enhanced due to Ultrafast Photon-Number Fluctuations. Physical Review Letters, 119(22). https://doi.org/10.1103/PhysRevLett.119.223603

MLA:

Spasibko, Kirill Yu., et al. "Multiphoton Effects Enhanced due to Ultrafast Photon-Number Fluctuations." Physical Review Letters 119.22 (2017).

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