Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Biphoton interference with a quantum dot source of entangled light
AU - Hudson, A. J.
AU - Stevenson, R. M.
AU - Young, R. J.
AU - Atkinson, P.
AU - Cooper, K.
AU - Ritchie, D. A.
AU - Shields, A. J.
PY - 2008/4
Y1 - 2008/4
N2 - We demonstrate optical interferometry beyond the limits imposed by the photon wavelength using 'triggered' entangled photon pairs from a semiconductor quantum dot. Interference fringes of the entangled biphoton state reveals a periodicity half of that obtained with the single photon, and much less than that of the pump laser. High fringe visibility indicates that biphoton interference is less sensitive to decoherence than interference of two sequential single photons. The results suggest that quantum interferometry may be possible using a semiconductor LED-like device. (C) 2007 Elsevier B.V. All rights reserved.
AB - We demonstrate optical interferometry beyond the limits imposed by the photon wavelength using 'triggered' entangled photon pairs from a semiconductor quantum dot. Interference fringes of the entangled biphoton state reveals a periodicity half of that obtained with the single photon, and much less than that of the pump laser. High fringe visibility indicates that biphoton interference is less sensitive to decoherence than interference of two sequential single photons. The results suggest that quantum interferometry may be possible using a semiconductor LED-like device. (C) 2007 Elsevier B.V. All rights reserved.
U2 - 10.1016/j.physe.2007.08.130
DO - 10.1016/j.physe.2007.08.130
M3 - Journal article
VL - 40
SP - 1888
EP - 1890
JO - Physica E: Low-dimensional Systems and Nanostructures
JF - Physica E: Low-dimensional Systems and Nanostructures
SN - 1386-9477
IS - 6
ER -