Room-temperature strong coupling of a single quantum emitter and a single
resonant plasmonic mode is a key resource for quantum information processing
and quantum sensing at ambient conditions. To beat dephasing, ultrafast energy
transfer is achieved by coupling single emitters to a plasmonic nanoresonator
with an extremely small mode volume and optimal spectral overlap. Typically,
normal mode splittings in luminescence spectra of single-emitter
strongly-coupled systems are provided as evidence for strong coupling and to
obtain rough estimates of the light-matter coupling strength g. However, a
complete anticrossing of a single emitter and a cavity mode as well as the
characterization of the uncoupled constituents is usually hard to achieve.
Here, we exploit the light-induced oxygen-dependent blue-shift of individual
CdSe/ZnS semiconductor quantum dots to tune their transition energy across the
resonance of a scanning plasmonic slit resonator after characterizing both
single emitter and nano resonator in their uncoupled states. Our results
provide clear proof of single-emitter strong light-matter coupling at ambient
condition as well as a value for the Rabi splitting at zero detuning 100 meV,
consistent with modeling, thereby opening the path towards plexitonic devices
that exploit single-photon nonlinearities at ambient conditions.
%0 Journal Article
%1 friedrich2023anticrossing
%A Friedrich, Daniel
%A Qin, Jin
%A Schurr, Benedikt
%A Tufarelli, Tommaso
%A Groß, Heiko
%A Hecht, Bert
%D 2023
%K anticrossing experiment myown nano-optics nanoresonator near-field plasmon
%T Anticrossing of a plasmonic nanoresonator mode and a single quantum dot
at room temperature
%U http://arxiv.org/abs/2305.06909
%X Room-temperature strong coupling of a single quantum emitter and a single
resonant plasmonic mode is a key resource for quantum information processing
and quantum sensing at ambient conditions. To beat dephasing, ultrafast energy
transfer is achieved by coupling single emitters to a plasmonic nanoresonator
with an extremely small mode volume and optimal spectral overlap. Typically,
normal mode splittings in luminescence spectra of single-emitter
strongly-coupled systems are provided as evidence for strong coupling and to
obtain rough estimates of the light-matter coupling strength g. However, a
complete anticrossing of a single emitter and a cavity mode as well as the
characterization of the uncoupled constituents is usually hard to achieve.
Here, we exploit the light-induced oxygen-dependent blue-shift of individual
CdSe/ZnS semiconductor quantum dots to tune their transition energy across the
resonance of a scanning plasmonic slit resonator after characterizing both
single emitter and nano resonator in their uncoupled states. Our results
provide clear proof of single-emitter strong light-matter coupling at ambient
condition as well as a value for the Rabi splitting at zero detuning 100 meV,
consistent with modeling, thereby opening the path towards plexitonic devices
that exploit single-photon nonlinearities at ambient conditions.
@article{friedrich2023anticrossing,
abstract = {Room-temperature strong coupling of a single quantum emitter and a single
resonant plasmonic mode is a key resource for quantum information processing
and quantum sensing at ambient conditions. To beat dephasing, ultrafast energy
transfer is achieved by coupling single emitters to a plasmonic nanoresonator
with an extremely small mode volume and optimal spectral overlap. Typically,
normal mode splittings in luminescence spectra of single-emitter
strongly-coupled systems are provided as evidence for strong coupling and to
obtain rough estimates of the light-matter coupling strength g. However, a
complete anticrossing of a single emitter and a cavity mode as well as the
characterization of the uncoupled constituents is usually hard to achieve.
Here, we exploit the light-induced oxygen-dependent blue-shift of individual
CdSe/ZnS semiconductor quantum dots to tune their transition energy across the
resonance of a scanning plasmonic slit resonator after characterizing both
single emitter and nano resonator in their uncoupled states. Our results
provide clear proof of single-emitter strong light-matter coupling at ambient
condition as well as a value for the Rabi splitting at zero detuning 100 meV,
consistent with modeling, thereby opening the path towards plexitonic devices
that exploit single-photon nonlinearities at ambient conditions.},
added-at = {2023-07-04T18:07:12.000+0200},
author = {Friedrich, Daniel and Qin, Jin and Schurr, Benedikt and Tufarelli, Tommaso and Groß, Heiko and Hecht, Bert},
biburl = {https://www.bibsonomy.org/bibtex/2498ee7077a39df323e9db0e5ce4b5ddc/ep5optics},
interhash = {bc1dff6f30c3f51b3456b38889b6fa60},
intrahash = {498ee7077a39df323e9db0e5ce4b5ddc},
keywords = {anticrossing experiment myown nano-optics nanoresonator near-field plasmon},
note = {cite arxiv:2305.06909},
timestamp = {2023-07-04T18:07:12.000+0200},
title = {Anticrossing of a plasmonic nanoresonator mode and a single quantum dot
at room temperature},
url = {http://arxiv.org/abs/2305.06909},
year = 2023
}