TY - JOUR
T1 - All optical switching of a single photon stream by excitonic depletion
AU - Muñoz-Matutano, Guillermo
AU - Johnsson, Mattias
AU - Martínez-Pastor, Juan
AU - Rivas Góngora, David
AU - Seravalli, Luca
AU - Trevisi, Giovanna
AU - Frigeri, Paola
AU - Volz, Thomas
AU - Gurioli, Massimo
N1 - © The Author(s) 2020. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.
PY - 2020/1/31
Y1 - 2020/1/31
N2 - Single semiconductor quantum dots have been extensively used to demonstrate the deterministic emission of high purity single photons. The single photon emission performance of these nanostructures has become very well controlled, offering high levels of photon indistinguishability and brightness. Ultimately, quantum technologies will require the development of a set of devices to manipulate and control the state of the photons. Here we measure and simulate a novel all-optical route to switch the single photon stream emitted from the excitonic transition in a single semiconductor quantum dot. A dual non-resonant excitation pumping scheme is used to engineer a switching device operated with GHz speeds, high differential contrasts, ultra-low power consumption and high single photon purity. Our device scheme can be replicated in many different zero dimensional semiconductors, providing a novel route towards developing a platform-independent on-chip design for high speed and low power consumption quantum devices.
AB - Single semiconductor quantum dots have been extensively used to demonstrate the deterministic emission of high purity single photons. The single photon emission performance of these nanostructures has become very well controlled, offering high levels of photon indistinguishability and brightness. Ultimately, quantum technologies will require the development of a set of devices to manipulate and control the state of the photons. Here we measure and simulate a novel all-optical route to switch the single photon stream emitted from the excitonic transition in a single semiconductor quantum dot. A dual non-resonant excitation pumping scheme is used to engineer a switching device operated with GHz speeds, high differential contrasts, ultra-low power consumption and high single photon purity. Our device scheme can be replicated in many different zero dimensional semiconductors, providing a novel route towards developing a platform-independent on-chip design for high speed and low power consumption quantum devices.
UR - http://www.scopus.com/inward/record.url?scp=85079173752&partnerID=8YFLogxK
UR - http://purl.org/au-research/grants/arc/CE170100009
U2 - 10.1038/s42005-020-0292-8
DO - 10.1038/s42005-020-0292-8
M3 - Article
AN - SCOPUS:85079173752
SN - 2399-3650
VL - 3
SP - 1
EP - 9
JO - Communications Physics
JF - Communications Physics
IS - 1
M1 - 29
ER -