On-chip steering of entangled photons in nonlinear photonic crystals

H.Y. Leng, X.Q. Yu, Y.X. Gong, P. Xu (), Z.D. Xie, H. Jin, C. Zhang and S.N. Zhu
Additional contact information
H.Y. Leng: National Laboratory of Solid State Microstructures and School of Physics, Nanjing University
X.Q. Yu: National Laboratory of Solid State Microstructures and School of Physics, Nanjing University
Y.X. Gong: National Laboratory of Solid State Microstructures and School of Physics, Nanjing University
P. Xu: National Laboratory of Solid State Microstructures and School of Physics, Nanjing University
Z.D. Xie: National Laboratory of Solid State Microstructures and School of Physics, Nanjing University
H. Jin: National Laboratory of Solid State Microstructures and School of Physics, Nanjing University
C. Zhang: School of Modern Engineering and Applied Science, Nanjing University
S.N. Zhu: National Laboratory of Solid State Microstructures and School of Physics, Nanjing University

Nature Communications, 2011, vol. 2, issue 1, 1-5

Abstract: Abstract One promising technique for working toward practical photonic quantum technologies is to implement multiple operations on a monolithic chip, thereby improving stability, scalability and miniaturization. The on-chip spatial control of entangled photons will certainly benefit numerous applications, including quantum imaging, quantum lithography, quantum metrology and quantum computation. However, external optical elements are usually required to spatially control the entangled photons. Here we present the first experimental demonstration of on-chip spatial control of entangled photons, based on a domain-engineered nonlinear photonic crystal. We manipulate the entangled photons using the inherent properties of the crystal during the parametric downconversion, demonstrating two-photon focusing and beam-splitting from a periodically poled lithium tantalate crystal with a parabolic phase profile. These experimental results indicate that versatile and precise spatial control of entangled photons is achievable. Because they may be operated independent of any bulk optical elements, domain-engineered nonlinear photonic crystals may prove to be a valuable ingredient in on-chip integrated quantum optics.

Date: 2011
References: Add references at CitEc
Citations:

Downloads: (external link)
https://www.nature.com/articles/ncomms1439 Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:2:y:2011:i:1:d:10.1038_ncomms1439

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/ncomms1439

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().