Controlling the properties of single photon emitters via the Purcell effect

Abstract

Single photon emission by an InAs/GaAs quantum dot weakly coupled to a photonic crystal microcavity has been studied as a function of energy detuning. Precise and continuous control of the photon statistics as well as of the linear polarization emission angle is achieved simply by changing the energy detuning between the exciton and the cavity mode. A continuous decrease of the antibunching time, the bunching amplitude and the g 2 (0) value is observed as the detuning is decreased at constant excitation rate, due to the detuning-dependent Purcell effect.

Coupled Collective and Rabi Oscillations Triggered by Electron Transport through a Photon Cavity

“…The transport of electrons through quantum dots assisted by up to four photons in the teraherz frequency range has been observed [1], and double quantum dots have been used to detect single-photons from shot-noise in electron transport through a quantum point contact [2]. The properties and control of atomic or electronic systems in photonic cavities is a common theme in the research effort of many teams working on various aspects of quantum cavity electrodynamics and related fields [3][4][5][6][7][8][9][10]. The non-local single-photon transport properties of two sets of double quantum dots within a photon cavity has recently been modeled [11], and also a pump-probe scheme for electron-photon dynamics in a hybrid conductor-cavity system with one electron reservoir [12].…”

Cavity‐photon contribution to the effective interaction of electrons in parallel quantum dots

“…Experiments on atom or electronic systems of various types in photonic cavities have been opening up a new and exciting venue to test and manipulate photon‐matter interactions in the strong coupling limit .…”

“…Experiments on atom or electronic systems of various types in photonic cavities have been opening up a new and exciting venue to test and manipulate photon-matter interactions in the strong coupling limit. [1][2][3][4][5][6] Modeling of these time-dependent systems has commonly been aimed at evaluating their steady state properties, that can include such diverse observables as their conductance, 7 the life time, 8 the broadening, 9 or the energy shift of certain many-body states or modes of relevance. Here, we would like to draw attention to how the experimentally challenging transient time regime can reveal information about the interaction of the participating constituents, in our case, electrons and cavity photons.…”

High quality factor GaAs-based photonic crystal microcavities by epitaxial re-growth

“…Single quantum dots embedded in a PCM become efficient quantum emitters which might be used for the generation of single-photons [3][4][5], entangled photon pairs [6], ultra-low threshold lasing [2], polariton lasing [2,7] or to explore new strong coupling phenomena [8][9][10]. Most c-QED applications require of a large optical quality factor (Q), a small electromagnetic mode volume (V), and a large coupling between the QD emission and the PCM mode [11].…”

“…The long axis of the hexagon is aligned along the [110] crystalline direction. This direction corresponds to the intersection of B-type facets (As terminated) with the (001) surface plane; the short axis of the hexagon is aligned along [1][2][3][4][5][6][7][8][9][10] that corresponds to the intersection of A-type facets (Ga terminated) with the (001) surface plane. A lateral flux of Ga atoms towards B-type facets and away from A-type facets during the re-growth step can explain the observed hexagonal shape.…”