An electrically pumped polariton laser

Schneider, Christian; Rahimi‐Iman, Arash; Kim, Na Young; Amthor, M.; Fischer, Julian; Lermer, M.; Savenko, I. G.; Shelykh, I. A.; Kulakovskiĭ, V. D.; Worschech, L.; Kamp, M.; Reitzenstein, Stephan; Forchel, A.; Yamamoto, Yoshihisa; Höfling, Sven

doi:10.1364/cleo_si.2013.cth5c.1

Cited by 43 publications

(45 citation statements)

References 3 publications

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“…In addition, we exploited the strong relation between delayed and spatiotemporal systems, which allowed us to interpret the temporal F-bits as robust homoclinic kinks of a modified Sine-Gordon equation. Owing to the genericity of our results, we believe that next-generation photonic sources such as quantum cascade 38 or polariton 39 lasers may support F-bits with identical dynamical origin and features and very attractive physical properties.…”

Section: Discussionmentioning

confidence: 70%

Topological solitons as addressable phase bits in a driven laser

et al. 2015

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Optical localized states are usually defined as self-localized bistable packets of light, which exist as independently controllable optical intensity pulses either in the longitudinal or transverse dimension of nonlinear optical systems. Here we demonstrate experimentally and analytically the existence of longitudinal localized states that exist fundamentally in the phase of laser light. These robust and versatile phase bits can be individually nucleated and canceled in an injection-locked semiconductor laser operated in a neuron-like excitable regime and submitted to delayed feedback. The demonstration of their control opens the way to their use as phase information units in next-generation coherent communication systems. We analyse our observations in terms of a generic model, which confirms the topological nature of the phase bits and discloses their formal but profound analogy with Sine-Gordon solitons.

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Section: Discussionmentioning

confidence: 70%

Topological solitons as addressable phase bits in a driven laser

et al. 2015

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“…Very recently, electrically pumped polariton lasing has also been demonstrated, even though only at cryogenic temperatures and substantial magnetic fields (Fig. B1b and c) 96,97 .…”

Section: Box: Exciton-polariton Lasersmentioning

confidence: 99%

Advances in small lasers

2014

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In recent years there have been significant advances in the size and characteristics of small lasers, i.e. lasers with dimensions or modes sizes close to or smaller than the wavelength of emitted light. This work has primarily been led by innovative use of new materials and cavity designs. This article reviews some of the latest developments, particularly in metallic and plasmonic lasers, improvements in small dielectric lasers, and the emerging area of small bio-compatible/bioderived lasers. We examine the different approaches employed in small lasers to reduce size and how they lead to significant differences , particularly between metal and dielectric cavity lasers. We present potential applications for the various forms of small lasers and indicate where further developments are required.

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“…The effect of polariton lasing has been shown for different materials [4,5], even up to room temperature in wide bandgap GaN [6], and organic [7][8][9] materials under optical pumping. Furthermore, polariton diodes can be excited electrically in GaAs based vertically emitting microcavities [10][11][12]. It is worth mentioning, that it turned out to be challenging to observe polariton laser operation or condensation effects in GaAs based microcavities with implemented InGaAs quantum wells (QWs).…”

Section: Introductionmentioning

confidence: 99%

“…It is worth mentioning, that it turned out to be challenging to observe polariton laser operation or condensation effects in GaAs based microcavities with implemented InGaAs quantum wells (QWs). However, InGaAs/GaAs QW microcavities bear several significant advantages compared to GaAs/Al(Ga)As QW cavities: a) as discussed in [10][11][12], electrical current injection is much easier due to smaller resistivity of both the doped distributed Bragg reflectors (DBR) and the typically intrinsic cavity; b) the DBRs can be composed of the binary compounds GaAs and AlAs which have the largest possible refractive index difference of the commonly used quasi lattice matched materials on GaAs substrate. Such mirrors are inherently easier to grow, are less afflicted to detrimental roughening, hence allowing to obtain large Q-factors much easier than DBRs based on ternary AlGaAs alloys ; c) the substrate is transparent at the emission frequency, which makes transmission studies straight forward, being particularly appealing in resonant studies; d) compared to GaAs QWs, InGaAs QWs allow for a significantly higher flexibility in the design of the QW bandstructure.…”

Section: Introductionmentioning

confidence: 99%

Electro-optical switching between polariton and cavity lasing in an InGaAs quantum well microcavity

Amthor¹,

Weissenseel²,

Fischer³

et al. 2014

Opt. Express

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Abstract:We report on the condensation of microcavity exciton polaritons under optical excitation in a microcavity with four embedded InGaAs quantum wells. The polariton laser is characterized by a distinct nonlinearity in the input-output-characteristics, which is accompanied by a drop of the emission linewidth indicating temporal coherence and a characteristic persisting emission blueshift with increased particle density. The temporal coherence of the device at threshold is underlined by a characteristic drop of the second order coherence function to a value close to 1. Furthermore an external electric field is used to switch between polariton regime, polariton condensate and photon lasing.

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An electrically pumped polariton laser

Cited by 43 publications

References 3 publications

Topological solitons as addressable phase bits in a driven laser

Topological solitons as addressable phase bits in a driven laser

Advances in small lasers

Electro-optical switching between polariton and cavity lasing in an InGaAs quantum well microcavity

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