Two-photon interference from a quantum dot-microcavity: Persistent pure-dephasing and suppression of time-jitter

S. Unsleber; Dara McCutcheon; M. Dambach; Matthias Lermer; Niels Gregersen; Sven Hofling; C. Schneider; M. Kamp

Two-photon interference from a quantum dot-microcavity: Persistent pure-dephasing and suppression of time-jitter

S. Unsleber, Dara McCutcheon, M. Dambach, Matthias Lermer, Niels Gregersen, Sven Hofling, C. Schneider, M. Kamp

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Abstract

We demonstrate the emission of highly indistinguishable photons from a quasiresonantly pumped coupled quantum dot–microcavity system operating in the regime of cavity quantum electrodynamics. Changing the sample temperature allows us to vary the quantum dot–cavity detuning, and on spectral resonance we observe a three-fold improvement in the Hong–Ou–Mandel interference visibility, reaching values in excess of 80%. By comparison with our microscopic model, we are able to identify pure-dephasing and not time-jitter as the dominating source of imperfections in our system.

Original language	English
Publication date	2015
Number of pages	2
Publication status	Published - 2015
Event	2015 Conference on Lasers and Electro-Optics 2015 (CLEO) - San Jose Convention Center, San Jose, CA, United States Duration: 10 May 2015 → 15 May 2015

Conference

Conference	2015 Conference on Lasers and Electro-Optics 2015 (CLEO)
Location	San Jose Convention Center
Country/Territory	United States
City	San Jose, CA
Period	10/05/2015 → 15/05/2015

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title = "Two-photon interference from a quantum dot-microcavity: Persistent pure-dephasing and suppression of time-jitter",

abstract = "We demonstrate the emission of highly indistinguishable photons from a quasiresonantly pumped coupled quantum dot–microcavity system operating in the regime of cavity quantum electrodynamics. Changing the sample temperature allows us to vary the quantum dot–cavity detuning, and on spectral resonance we observe a three-fold improvement in the Hong–Ou–Mandel interference visibility, reaching values in excess of 80%. By comparison with our microscopic model, we are able to identify pure-dephasing and not time-jitter as the dominating source of imperfections in our system.",

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TY - CONF

T1 - Two-photon interference from a quantum dot-microcavity: Persistent pure-dephasing and suppression of time-jitter

AU - Unsleber, S.

AU - McCutcheon, Dara

AU - Dambach, M.

AU - Lermer, Matthias

AU - Gregersen, Niels

AU - Hofling, Sven

AU - Schneider, C.

AU - Kamp, M.

PY - 2015

Y1 - 2015

N2 - We demonstrate the emission of highly indistinguishable photons from a quasiresonantly pumped coupled quantum dot–microcavity system operating in the regime of cavity quantum electrodynamics. Changing the sample temperature allows us to vary the quantum dot–cavity detuning, and on spectral resonance we observe a three-fold improvement in the Hong–Ou–Mandel interference visibility, reaching values in excess of 80%. By comparison with our microscopic model, we are able to identify pure-dephasing and not time-jitter as the dominating source of imperfections in our system.

AB - We demonstrate the emission of highly indistinguishable photons from a quasiresonantly pumped coupled quantum dot–microcavity system operating in the regime of cavity quantum electrodynamics. Changing the sample temperature allows us to vary the quantum dot–cavity detuning, and on spectral resonance we observe a three-fold improvement in the Hong–Ou–Mandel interference visibility, reaching values in excess of 80%. By comparison with our microscopic model, we are able to identify pure-dephasing and not time-jitter as the dominating source of imperfections in our system.

M3 - Paper

T2 - 2015 Conference on Lasers and Electro-Optics 2015 (CLEO)

Y2 - 10 May 2015 through 15 May 2015

ER -

Two-photon interference from a quantum dot-microcavity: Persistent pure-dephasing and suppression of time-jitter

Abstract

Conference

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