Spectral information and distinguishability in type-II down-conversion with a broadband pump
Abstract
A model is presented to describe spontaneous type-II parametric down-conversion pumped by a broadband source. This process differs from the familiar cw-pumped down-conversion in that a broader range of pump energies is available for down-conversion. The properties of the nonlinear crystal determine how these energies are distributed into the down-converted photons. Because the two photons are polarized along different crystal axes, they have different spectral characteristics and are no longer exactly anticorrelated. As the pump bandwidth is increased, this effect becomes more pronounced. A fourth-order interference experiment is proposed, illustrating some of the features of broadband pumped down-conversion.
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Methods used to increase quantum interference visibility include: (i) a thin nonlinear crystal, (ii) narrow-band spectral filters in front of detectors, or (iii) an interferometric technique without spectral and amplitude post-selection.
“The following methods are used to increase the quantum interference visibility: (i) a thin nonlinear crystal (Sergienko et al., 1999), (ii) narrow-band spectral filters in front of detectors, as shown above (Grice and Walmsley, 1997;Grice et al., 1998;Di Giuseppe et al., 1997), or (iii) an interferometric technique (Branning et al., 1999(Branning et al., , 2000) ) without spectral and amplitude”
From Multiphoton entanglement and interferometry (2012) · cites this paper as Grice and Walmsley, 1997
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Multiphoton entanglement and interferometry
Pan, J.-W., Chen, Z.-B., Lu, C.-Y., Weinfurter, H., Zeilinger, A., & Żukowski, M. (2012) · Reviews of Modern Physics · doi:10.1103/revmodphys.84.777 · Cited by 1,410 · see citing works
“…SPDC: (i) to use a thin nonlinear crystal (Sergienko et al., 1999), (ii) to use narrow-band spectral filters in front of detectors, as shown above (Grice and Walmsley, 1997; Grice et al., 1998; Di Giuseppe et al., 1997), or (iii) to use an interferometric technique (Branning et al., 1999, 2000)…”
MethodPhotonic quantum information processing: a concise review
Slussarenko, S., & Pryde, G. J. (2019) · Applied Physics Reviews · doi:10.1063/1.5115814 · Cited by 644 · see citing works
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- Authors
- Grice, W. P., & Walmsley, I. A.
- Affiliations
- University of Rochester (US)
- Venue
- Physical Review A
- Publisher
- American Physical Society (APS)
- Published
- 1997-08-01
- Volume
- 56
- Issue
- 2
- Pages
- 1627-1634
- ISSN
- 0556-2791 (ISSN-L)
- 1050-2947
- 1094-1622
- OpenAlex
- W2000991915
- Cited by
- 516
- References
- 3
- Citations by year
- 2026: 16 · 2025: 19 · 2024: 16 · 2023: 18 · 2022: 19 · 2021: 23 · 2020: 30 · 2019: 26 · 2018: 20 · 2017: 19 · 2016: 32 · 2015: 19 · 2014: 19 · 2013: 20 · 2012: 21
- FWCI
- 6.62
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Physical Review A (publishedVersion)
- Funders
- National Science Foundation
- Topics
- Physical Sciences › Computer Science › Artificial Intelligence › Quantum Information and Cryptography
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Photorefractive and Nonlinear Optics
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Quantum optics and atomic interactions
- Keywords
- spontaneous parametric down-conversion, polarization-entangled photon pairs, pump bandwidth, nonlinear optical crystals, fourth-order interference, quantum optics
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