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 entangled light source
AU - Stevenson, R. M.
AU - Hudson, A. J.
AU - Young, R. J.
AU - Atkinson, P.
AU - Cooper, K.
AU - Ritchie, D. A.
AU - Shields, A. J.
PY - 2007/5/14
Y1 - 2007/5/14
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 Optical Society of America
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 Optical Society of America
M3 - Journal article
VL - 15
SP - 6507
EP - 6512
JO - Optics Express
JF - Optics Express
SN - 1094-4087
IS - 10
ER -