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

Research output: Contribution to conferencePaperResearchpeer-review

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 languageEnglish
Publication date2015
Number of pages2
Publication statusPublished - 2015
Event2015 Conference on Lasers and Electro-Optics 2015 (CLEO) - San Jose Convention Center, San Jose, CA, United States
Duration: 10 May 201515 May 2015

Conference

Conference2015 Conference on Lasers and Electro-Optics 2015 (CLEO)
LocationSan Jose Convention Center
CountryUnited States
CitySan Jose, CA
Period10/05/201515/05/2015

Cite this

Unsleber, S., McCutcheon, D., Dambach, M., Lermer, M., Gregersen, N., Hofling, S., Schneider, C., & Kamp, M. (2015). Two-photon interference from a quantum dot-microcavity: Persistent pure-dephasing and suppression of time-jitter. Paper presented at 2015 Conference on Lasers and Electro-Optics 2015 (CLEO), San Jose, CA, United States.