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Title: Beamlike photon-pair generation for two-photon interference and polarization entanglement

Abstract

Beamlike photon pairs were generated by spontaneous parametric down-conversion using a type-II {beta}-BaB{sub 2}O{sub 4} crystal. A pump laser generated photon pairs when it transmitted through the crystal and was reflected back into the crystal by a mirror to generate more photon pairs. The photon pairs generated when the pump laser first transmitted through the crystal (first photon pairs) were also reflected back into the crystal to overlap with the light path of the photon pairs generated in the second transmission of the pump laser through the crystal (second photon pairs). We observed interference between the first and second photon pairs modulated with a half period of the wavelength of the photon pairs, which demonstrates two-photon interference using the beamlike photon pairs. The fringe period confirms that the observed interference is not classical interference but quantum two-photon interference. Through rotating the angles of quarter-wave plates in the light paths of the photon pairs, we generated beamlike photon pairs with entangled polarization. The phase between the first and second photon pairs could be tuned by changing the position of mirrors reflecting the pump pulses and photon pairs. The fringes of coincidence counts showed that the beamlike photon pairs have polarization entanglement.

Authors:
 [1]; ;  [2];  [1];  [2]
  1. Department of Physics, National Tsing Hua University, Hsinchu, 300, Taiwan (China)
  2. Department of Electrophysics, National Chiao-Tung University, Hsinchu, 300, Taiwan (China)
Publication Date:
OSTI Identifier:
21537130
Resource Type:
Journal Article
Journal Name:
Physical Review. A
Additional Journal Information:
Journal Volume: 83; Journal Issue: 2; Other Information: DOI: 10.1103/PhysRevA.83.022313; (c) 2011 American Institute of Physics; Journal ID: ISSN 1050-2947
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; CRYSTALS; INTERFERENCE; LASER MIRRORS; LASER RADIATION; LIGHT TRANSMISSION; OPTICAL PUMPING; PAIR PRODUCTION; PHOTONS; POLARIZATION; PULSES; QUANTUM ENTANGLEMENT; TWO-BODY PROBLEM; VISIBLE RADIATION; WAVELENGTHS; BOSONS; ELECTROMAGNETIC RADIATION; ELEMENTARY PARTICLES; INTERACTIONS; MANY-BODY PROBLEM; MASSLESS PARTICLES; MIRRORS; PARTICLE PRODUCTION; PUMPING; RADIATIONS; TRANSMISSION

Citation Formats

Lo, Hsin-Pin, Department of Electrophysics, National Chiao-Tung University, Hsinchu, 300, Taiwan, Yabushita, Atsushi, Luo, Chih-Wei, Chen, Pochung, Kobayashi, Takayoshi, International Cooperative Research Project, Japan Science and Technology Agency, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, University of Electro-Communications, 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585, and Institute of Laser Engineering, Osaka University, 2-6 Yamada oka, Suita, Osaka 565-0971. Beamlike photon-pair generation for two-photon interference and polarization entanglement. United States: N. p., 2011. Web. doi:10.1103/PHYSREVA.83.022313.
Lo, Hsin-Pin, Department of Electrophysics, National Chiao-Tung University, Hsinchu, 300, Taiwan, Yabushita, Atsushi, Luo, Chih-Wei, Chen, Pochung, Kobayashi, Takayoshi, International Cooperative Research Project, Japan Science and Technology Agency, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, University of Electro-Communications, 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585, & Institute of Laser Engineering, Osaka University, 2-6 Yamada oka, Suita, Osaka 565-0971. Beamlike photon-pair generation for two-photon interference and polarization entanglement. United States. https://doi.org/10.1103/PHYSREVA.83.022313
Lo, Hsin-Pin, Department of Electrophysics, National Chiao-Tung University, Hsinchu, 300, Taiwan, Yabushita, Atsushi, Luo, Chih-Wei, Chen, Pochung, Kobayashi, Takayoshi, International Cooperative Research Project, Japan Science and Technology Agency, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, University of Electro-Communications, 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585, and Institute of Laser Engineering, Osaka University, 2-6 Yamada oka, Suita, Osaka 565-0971. Tue . "Beamlike photon-pair generation for two-photon interference and polarization entanglement". United States. https://doi.org/10.1103/PHYSREVA.83.022313.
@article{osti_21537130,
title = {Beamlike photon-pair generation for two-photon interference and polarization entanglement},
author = {Lo, Hsin-Pin and Department of Electrophysics, National Chiao-Tung University, Hsinchu, 300, Taiwan and Yabushita, Atsushi and Luo, Chih-Wei and Chen, Pochung and Kobayashi, Takayoshi and International Cooperative Research Project, Japan Science and Technology Agency, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012 and University of Electro-Communications, 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585 and Institute of Laser Engineering, Osaka University, 2-6 Yamada oka, Suita, Osaka 565-0971},
abstractNote = {Beamlike photon pairs were generated by spontaneous parametric down-conversion using a type-II {beta}-BaB{sub 2}O{sub 4} crystal. A pump laser generated photon pairs when it transmitted through the crystal and was reflected back into the crystal by a mirror to generate more photon pairs. The photon pairs generated when the pump laser first transmitted through the crystal (first photon pairs) were also reflected back into the crystal to overlap with the light path of the photon pairs generated in the second transmission of the pump laser through the crystal (second photon pairs). We observed interference between the first and second photon pairs modulated with a half period of the wavelength of the photon pairs, which demonstrates two-photon interference using the beamlike photon pairs. The fringe period confirms that the observed interference is not classical interference but quantum two-photon interference. Through rotating the angles of quarter-wave plates in the light paths of the photon pairs, we generated beamlike photon pairs with entangled polarization. The phase between the first and second photon pairs could be tuned by changing the position of mirrors reflecting the pump pulses and photon pairs. The fringes of coincidence counts showed that the beamlike photon pairs have polarization entanglement.},
doi = {10.1103/PHYSREVA.83.022313},
url = {https://www.osti.gov/biblio/21537130}, journal = {Physical Review. A},
issn = {1050-2947},
number = 2,
volume = 83,
place = {United States},
year = {2011},
month = {2}
}