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タイトル: 0.54 μm resolution two-photon interference with dispersion cancellation for quantum optical coherence tomography.
著者: Okano, Masayuki
Lim, Hwan Hong
Okamoto, Ryo
Nishizawa, Norihiko
Kurimura, Sunao
Takeuchi, Shigeki  kyouindb  KAKEN_id
著者名の別形: 岡野, 真之
岡本, 亮
西澤, 典彦
栗村, 直
竹内, 繁樹
発行日: 14-Dec-2015
出版者: Nature Publishing Group
誌名: Scientific reports
巻: 5
論文番号: 18042
抄録: Quantum information technologies harness the intrinsic nature of quantum theory to beat the limitations of the classical methods for information processing and communication. Recently, the application of quantum features to metrology has attracted much attention. Quantum optical coherence tomography (QOCT), which utilizes two-photon interference between entangled photon pairs, is a promising approach to overcome the problem with optical coherence tomography (OCT): As the resolution of OCT becomes higher, degradation of the resolution due to dispersion within the medium becomes more critical. Here we report on the realization of 0.54 μm resolution two-photon interference, which surpasses the current record resolution 0.75 μm of low-coherence interference for OCT. In addition, the resolution for QOCT showed almost no change against the dispersion of a 1 mm thickness of water inserted in the optical path, whereas the resolution for OCT dramatically degrades. For this experiment, a highly-efficient chirped quasi-phase-matched lithium tantalate device was developed using a novel 'nano-electrode-poling' technique. The results presented here represent a breakthrough for the realization of quantum protocols, including QOCT, quantum clock synchronization, and more. Our work will open up possibilities for medical and biological applications.
記述: 量子もつれ光を用いた、超高分解能光断層撮影技術を開発-. 京都大学プレスリリース. 2015-12-15.
著作権等: This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
URI: http://hdl.handle.net/2433/202606
DOI(出版社版): 10.1038/srep18042
PubMed ID: 26657190
関連リンク: http://www.kyoto-u.ac.jp/ja/research/research_results/2015/151214_2.html
出現コレクション:学術雑誌掲載論文等

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