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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 39  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
QIT
(2nd)
2023-12-17
17:30
Okinawa OIST
(Primary: On-site, Secondary: Online)
[Poster Presentation] Polarization-entangled photon pair generation with a tandem type-II QPM PPLN waveguide
Daiki Hara (Osaka Univ.), Shoichi Murakami (Osaka Univ./QIQB, Osaka Univ.), Shunsuke Hiraoka (Osaka Univ.), Toshiki Kobayashi (Osaka Univ./QIQB, Osaka Univ.), Fumihiro China (NICT), Shigehito Miki (NICT/Kobe Univ.), Hirotaka Terai (NICT), Tsuyoshi Kodama (NICT/HAMAMATSU PHOTONICS), Tsuneaki Sawaya, Akihiko Ohtomo, Hideki Shimoi (HAMAMATSU PHOTONICS), Rikizo Ikuta, Takashi Yamamoto (Osaka Univ./QIQB, Osaka Univ.)
In the field of quantum information communication, the sharing of entanglement between distant parties plays a crucial r... [more]
QIT
(2nd)
2023-12-17
17:30
Okinawa OIST
(Primary: On-site, Secondary: Online)
[Poster Presentation] Experiment of single photon transmission over intercity optical fiber
Toshiki Kobayashi, Rikizo Ikuta, Takashi Yamamoto (Osaka Univ.)
In this work, we prepared heralded single photons using photon pairs generated by spontaneous parametric down-conversion... [more]
QIT
(2nd)
2023-05-29
15:45
Kyoto Katsura Campus, Kyoto University Quantum infrared spectroscopy in the fingerprint region
Yu Mukai, Ryo Okamoto, Shigeki Takeuchi (Kyoto Univ.)
Quantum infrared spectroscopy (QIRS) is one of the photonic quantum sensing techniques using frequency entangled photon ... [more]
NS, NWS
(Joint)
2023-01-27
11:20
Yamaguchi Hybrid Meeting (Yamaguchi Prefecture)
(Primary: On-site, Secondary: Online)
SRLG-Disjoint Optical Redundant Route Selection with k-SPF Algorithm
Hiroshi Matsuura, Koujun Koshiji, Yasuhasu Kaneko, Hanami Yokoi, Tatsuya Matsukawa, Takayuki Fujii, Takashi Miyamura (NTT) NS2022-164
When an end-to-end wavelength path is established, a primary/backup redundant route pair for the path should be prepared... [more] NS2022-164
pp.84-89
QIT
(2nd)
2022-12-08
14:00
Kanagawa Keio Univ.
(Primary: On-site, Secondary: Online)
[Poster Presentation] Two-photon phase singularity manifested by propagational distance control of photon pair generated by higher-order LG pump beam
Takumi Jinushi, Hirokazu Kobayashi (KUT)
We report our finding that a phase singularity in two-photon wave function is manifested at the center of the optical ax... [more]
QIT
(2nd)
2022-05-30
13:30
Online Online [Poster Presentation] Realization of Compression of Temporal Correlation Width of Frequency Entangled Photon Pairs Using Evolutionary Strategy Algorithm
Ryoya Saito, Itsumu Fujita, Shunsuke Sasaki, Naofumi Abe (Kyoto Univ), Mamoru Hisamitsu, Katsuhiko Tokuda (Shimadzu Corporation), Ryo Okamoto, Shigeki Takeuchi (Kyoto Univ)
Since broadband frequency entangled photon pairs can realize ultra-short temporal correlation width, those are
expected... [more]

LQE, LSJ 2019-05-31
09:30
Shiga   Study of quantum state conversion from photons to electron spins for long-distance quantum communications
Akira Oiwa (Osaka Univ.) LQE2019-16
We study the quantum state conversion from photons to electron spins in quantum dots, its efficient conversion and entan... [more] LQE2019-16
pp.19-22
QIT
(2nd)
2019-05-20
09:40
Fukuoka Kyushu University, Chikushi Campus Heralded amplification of nonlocality via entanglement swapping for long-distance device-independent quantum key distribution
Yoshiaki Tsujimoto (NICT), Chenglong You (LSU), Kentaro Wakui, Mikio Fujiwara, Kazuhiro Hayasaka, Shigehito Miki, Hirotaka Terai, Masahide Sasaki (NICT), Jonathan P. Dowling (LSU), Masahiro Takeoka (NICT)
To realize the practical implementation of device-independent quantum key distribution~(DIQKD), the main difficulty is t... [more]
QIT
(2nd)
2017-11-16
13:50
Saitama Saitama University [Poster Presentation] Transverse resolution improvement in quantum optical coherence tomography
Yoko Kawaguchi, Kyohei Hayama, Ryo Okamoto (Kyoto Univ.), Norihiko Nishizawa (Nagoya Univ.), Shigeki Takeuchi (Kyoto Univ.)
Quantum optical coherence tomography (QOCT), a quantum version of optical coherence tomography (OCT), has been proposed ... [more]
QIT
(2nd)
2017-05-30
16:10
Kyoto Ritesumeikan University, Suzaku Campus Classical observation of a focused beam spot beyond the diffraction limit by using the time-reversal symmetry of quantum mechanics
Kazuhisa Ogawa (Hokkaido Univ.), Hirokazu Kobayashi (Kochi Univ. of Tech.), Akihisa Tomita (Hokkaido Univ.)
The position-wavenumber entanglement in entangled photon pairs is the basis for various quantum-optical phenomena.
By... [more]

PN 2016-09-02
10:35
Hokkaido KKR Hakodate [Invited Talk] Availability Analyses for Photonic Network by Minimal Blocking Set using ZDD based Graphillion
Masashi Hashimoto, Tomihiro Utsumi (Akita Univ.), Takeru Inoue (NTT) PN2016-22
We propose availability estimation method of the photonic network in which more than one traffic demands are accommodate... [more] PN2016-22
pp.45-51
QIT
(2nd)
2016-05-30
13:00
Kochi Kochi University of Technology Eikokuji campus [Poster Presentation] The photon-number distribution of a heralded single photon source combining multiplexing and photon-pair number discrimination
Takayuki Kiyohara, Ryo Okamoto, Shigeki Takeuchi (Kyoto Univ.)
A heralded single photon source (HSPS) is widely used in many experimental quantum science, because it can realize high ... [more]
QIT
(2nd)
2016-05-30
13:00
Kochi Kochi University of Technology Eikokuji campus [Poster Presentation] Study on minimizing the temporal correlation of broadband entangled photon pairs
Tatsuki Deguchi, Shunta Sugano, Ryo Okamoto, Shigeki Takeuchi (Kyoto Univ.)
Entangled photon pairs whose temporal correlation are single optical cycle can be used in many applications including an... [more]
QIT
(2nd)
2015-05-25
13:20
Osaka Osaka University [Poster Presentation] Study on minimizing the temporal correlation of broadband entangled photon pairs
Shunta Sugano (Kyoto Univ.), Masayuki Okano (Kyoto Univ./Osaka Univ./Hokkaido Univ.), Yu Eto (Osaka Univ./Hokkaido Univ.), Ryo Okamoto, Shigeki Takeuchi (Kyoto Univ./Osaka Univ./Hokkaido Univ.)
Entangled photon pairs whose temporal correlation width are single optical cycle can be used in many applications includ... [more]
QIT
(2nd)
2015-05-25
13:20
Osaka Osaka University [Poster Presentation] Study on the rapid imaging of quantum optical coherence tomography
Shun Suezawa, Masayuki Okano, Ryo Okamoto (Kyoto Univ.), Norihiko Nishizawa (Nagoya Univ.), Shigeki Takeuchi (Kyoto Univ.)
Quantum optical coherence tomography (QOCT), a quantum version of optical coherence tomography (OCT ), has been studied ... [more]
LQE, LSJ 2014-05-23
10:35
Fukui   Development of Ultrashort Pulsed Laser at 1μm for Ultrafast Spectroscopy in Visible Range
Yuhei Chiba (TUAT), Hideyuki Takada, Kenji Torizuka (AIST), Kazuhiko Misawa (TUAT) LQE2014-10
Today, in the field of ultrafast spectroscopy, Ti:Sapphire laser is mainly used as ultrashort pulsed light source. Howev... [more] LQE2014-10
pp.43-47
QIT
(2nd)
2014-05-12
10:30
Aichi Nagoya Univ. Demonstration of high-resolution quantum optical coherence tomography by broadband frequency-correlated photon pairs
Masayuki Okano, Yuichi Nagamatsu, Akira Tanaka (Hokkaido Univ./Osaka Univ.), Hwan Hong Lim (NIMS), Ryo Okamoto (Hokkaido Univ./Osaka Univ.), Norihiko Nishizawa (Nagoya Univ.), Sunao Kurimura (NIMS), Shigeki Takeuchi (Hokkaido Univ./Osaka Univ./Kyoto Univ.)
Optical coherence tomography (OCT) based on low-coherence light interference has widely been utilized in medicine as a n... [more]
QIT
(2nd)
2014-05-12
- 2014-05-13
Aichi Nagoya Univ. [Poster Presentation] Dispersion-tolerant two-photon Michelson interferometer using telecom-band photon pairs with frequency entanglement
Akio Yoshizawa, Daiji Fukuda, Hidemi Tsuchida, Noritsugu Yamamoto (AIST)
We study chromatic group-velocity dispersion (GVD) tolerance of a fiber-optic two-photon interferometer using telecom-ba... [more]
QIT
(2nd)
2013-05-27
15:10
Hokkaido Hokkaido Univ. Realization and Observation of Ultra-Broadband Frequency Correlated Photon Pairs at Near-Infrared Wavelength Range
Akira Tanaka, Ryo Okamoto (Hokkaido Univ./Osaka Univ.), Hwan Hong Lim (NIMS), Masayuki Okano, Yu Eto, Shanthi Subashchandran (Hokkaido Univ./Osaka Univ.), Sunao Kurimura (NIMS), Labao Zhang, Lin Kang, Jian Chen, Peiheng Wu (Nanjing Univ.), Toru Hirohata (Hamamatsu Photonics, K.K.), Shigeki Takeuchi (Hokkaido Univ./Osaka Univ.)
A monocycle entangled photon pair is a two-photon state that has a temporal quantum correlation within an optical cycle ... [more]
QIT
(2nd)
2013-05-28
10:50
Hokkaido Hokkaido Univ. [Invited Talk] Semiconductor Photon Source of Single Photons and Entangled Photon Pairs for Quantum Information and Communication
Ikuo Suemune, Hidekazu Kumano, Hideaki Nakajima, Xiangming Liu, Hirotaka Sasakura, Satoru Odashima (Hokkaido Univ)
In quantum information and communication based on single photons, the security of communication is based on the quantum ... [more]
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