Single quantum dot nanolaser

Strauf, Stefan; Jahnke, F.

doi:10.1002/lpor.201000039

Cited by 127 publications

(116 citation statements)

References 218 publications

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“…Introduction.-The temporal coherence of a source of radiation is a key quantity that distinguishes laserlike devices from thermal emitters. While the first-order coherence function g (1) (τ ), which is the correlator of field amplitudes at different times, reflects the coherence of the emitted photons, its second-order counterpart g (2) (τ ) involves intensity correlation and gives insights into emission statistics. In conventional semiconductor lasers, which rely on stimulated emission and population inversion, the emission statistics transits from thermal (below lasing threshold) to coherent as revealed by g (2) (τ = 0) = 2 and 1, respectively.…”

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confidence: 99%

Evolution of Temporal Coherence in Confined Exciton-Polariton Condensates

et al. 2018

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We study the influence of spatial confinement on the second-order temporal coherence of the emission from a semiconductor microcavity in the strong coupling regime. The confinement, provided by etched micropillars, has a favorable impact on the temporal coherence of solid state quasicondensates that evolve in our device above threshold. By fitting the experimental data with a microscopic quantum theory based on a quantum jump approach, we scrutinize the influence of pump power and confinement and find that phonon-mediated transitions are enhanced in the case of a confined structure, in which the modes split into a discrete set. By increasing the pump power beyond the condensation threshold, temporal coherence significantly improves in devices with increased spatial confinement, as revealed in the transition from thermal to coherent statistics of the emitted light.

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confidence: 99%

Evolution of Temporal Coherence in Confined Exciton-Polariton Condensates

et al. 2018

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“…This simplified form is the one most commonly seen and used in the literature [52] to quantify the cavityenhanced or -inhibited rate of spontaneous emission, relative to the emission in freespace. However, using the emitter-field-reservoir model in the quantum theory of damping, effects ignored in the commonly used Purcell factor expression can be captured.…”

Section: Purcell Effect In Semiconductor Nanolasersmentioning

confidence: 99%

Temperature effects in metal-clad semiconductor nanolasers

Smalley

Shane

et al. 2015

Nanophotonics

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Abstract:As the field of semiconductor nanolasers becomes mature in terms of both the miniaturization to the true sub-wavelength scale, and the realization of room temperature devices, the integrated treatment of multiple design aspects beyond pure electromagnetic consideration becomes necessary to further advance the field. In this review, we focus on one such design aspect: temperature effects in nanolasers. We summarize recent efforts in understanding the interplay of various temperaturedependent parameters, and study their effects on optical mode and emission characteristics. Building on this knowledge, nanolasers with improved thermal performance can be designed, and their performance evaluated. Although this review focuses on metal-clad semiconductor lasers because of their suitability for dense chip-scale integration, these thermal considerations also apply to the broader field of nanolasers.

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“…As an ultimate microscopic limit of thresholdless semiconductor lasers, single-QD nanolaser, i.e., a single QD coupled to a single mode of an optical cavity shown in Fig. 4, allow us to investigate the light-matter interaction down to the single particle level entering the so-called cavity quantum electrodynamics (QED) regime [4,77,78]. As early as in 1999, Pelton et al [77] firstly proposed a single QD microcavity system as a novel ultralow threshold laser device, consisting of a single InAs/GaAs self-assembled QD coupled to a highfinesse microsphere cavity.…”

Section: Ultimate Nanolasers: Single Quantum Dot Vecsel Devicesmentioning

confidence: 99%

“…As early as in 1999, Pelton et al [77] firstly proposed a single QD microcavity system as a novel ultralow threshold laser device, consisting of a single InAs/GaAs self-assembled QD coupled to a highfinesse microsphere cavity. Later, S. Strauf and co-workers have demonstrated that very few (2-4) QDs as a gain medium are sufficient to realize a photonic crystal (PhC) laser based on a high-quality nanocavity [78]. Photon correlation measurements show a transition from a thermal to a coherent light state proving that lasing action occurs at ultralow thresholds.…”

Section: Ultimate Nanolasers: Single Quantum Dot Vecsel Devicesmentioning

confidence: 99%

“…Recently, such a coupled system consisting of a nanocavity and a QD shown in Fig. 4(c) has been further extensively investigated because of its promising applications such as quantum information processing [4,[83][84][85][86], single photon sources [1,81,85], and ultimately low-threshold nanolasers [78,80,[86][87][88][89]. For such a single QD PhC nanocavity system, utilization of a single mode cavity with a sufficiently high Q factor as a lasing mode, the modal volume of which should be as small as possible to maximize the interaction with the single QD gain medium, is key to realize a thresholdless QD nanolaser.…”

Section: Figmentioning

confidence: 99%

See 1 more Smart Citation

Vertical-external-cavity surface-emitting lasers and quantum dot lasers

Shan¹,

Zhao²,

Hu³

et al. 2012

Front. Optoelectron.

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The use of cavity to manipulate photon emission of quantum dots (QDs) has been opening unprecedented opportunities for realizing quantum functional nanophotonic devices and also quantum information devices. In particular, in the field of semiconductor lasers, QDs were introduced as a superior alternative to quantum wells to suppress the temperature dependence of the threshold current in vertical-external-cavity surface-emitting lasers (VECSELs). In this work, a review of properties and development of semiconductor VECSEL devices and QD laser devices is given. Based on the features of VECSEL devices, the main emphasis is put on the recent development of technological approach on semiconductor QD VECSELs. Then, from the viewpoint of both single QD nanolaser and cavity quantum electrodynamics (QED), a single-QD-cavity system resulting from the strong coupling of QD cavity is presented. A difference of this review from the other existing works on semiconductor VECSEL devices is that we will cover both the fundamental aspects and technological approaches of QD VECSEL devices. And lastly, the presented review here has provided a deep insight into useful guideline for the development of QD VECSEL technology and future quantum functional nanophotonic devices and monolithic photonic integrated circuits (MPhICs).

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Single quantum dot nanolaser

Cited by 127 publications

References 218 publications

Evolution of Temporal Coherence in Confined Exciton-Polariton Condensates

Evolution of Temporal Coherence in Confined Exciton-Polariton Condensates

Temperature effects in metal-clad semiconductor nanolasers

Vertical-external-cavity surface-emitting lasers and quantum dot lasers

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