Spontaneous emission of quantum dot excitons into surface plasmons in a nanowire

Chen, Guang-Yin; Chen, Yueh-Nan; Chuu, Der–San

doi:10.1364/ol.33.002212

Cited by 55 publications

(52 citation statements)

References 13 publications

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“…Massively Fermi-degenerate electrons and holes, which would never occur in atomic-like systems, can lead to many-body enhancement of gain, which induces preferential production of a superfluorescent burst at the Fermi edge [140]. This is still a rapidly progressing field of research, expanding to encompass more and more nontraditional physical situations for SR and SF, such as plasmon excitations [43,61] and exciton-plasmon coupling [170,171], with unique solid-state cavities to create nonintuitive many-body playgrounds [60,169,172].…”

Section: Discussionmentioning

confidence: 99%

Dicke superradiance in solids [Invited]

et al. 2016

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Recent advances in optical studies of condensed matter systems have led to the emergence of a variety of phenomena that have conventionally been studied in the realm of quantum optics. These studies have not only deepened our understanding of light-matter interactions but also introduced aspects of many-body correlations inherent in optical processes in condensed matter systems. This article is concerned with the phenomenon of superradiance (SR), a profound quantum optical process originally predicted by Dicke in 1954. The basic concept of SR applies to a general N -body system where constituent oscillating dipoles couple together through interaction with a common light field and accelerate the radiative decay of the whole system. Hence, the term SR ubiquitously appears in order to describe radiative coupling of an arbitrary number of oscillators in many situations in modern science of both classical and quantum description. In the most fascinating manifestation of SR, known as superfluorescence (SF), an incoherently prepared system of N inverted atoms spontaneously develops macroscopic coherence from vacuum fluctuations and produces a delayed pulse of coherent light whose peak intensity ∝ N 2 . Such SF pulses have been observed in atomic and molecular gases, and their intriguing quantum nature has been unambiguously demonstrated. In this review, we focus on the rapidly developing field of research on SR phenomena in solids, where not only photon-mediated coupling (as in atoms) but also strong Coulomb interactions and ultrafast scattering processes exist. We describe SR and SF in molecular centers in solids, molecular aggregates and crystals, quantum dots, and quantum wells. In particular, we will summarize a series of studies we have recently performed on semiconductor quantum wells in the presence of a strong magnetic field. In one type of experiment, electron-hole pairs were incoherently prepared, but a macroscopic polarization spontaneously emerged and cooperatively decayed, emitting an intense SF burst. In another type of experiment, we observed the SR decay of coherent cyclotron resonance of ultrahigh-mobility two-dimensional electron gases, leading to a decay rate that is proportional to the electron density. These results show that cooperative effects in solid-state systems are not merely small corrections that require exotic conditions to be observed; rather, they can dominate the nonequilibrium dynamics and light emission processes of the entire system of interacting electrons.

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Section: Discussionmentioning

confidence: 99%

Dicke superradiance in solids [Invited]

et al. 2016

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“…Such an ability to control and enhance or inhibit the total spontaneous emission rate can have fundamental implications in quantum communication and computing systems [32-34], low-threshold nanolasers [35], ultrasensitive optical sensors [48,49] and new solar cell designs. Our findings can also be applied to other quantum processes, such as 14 the efficient generation and control of long range quantum entanglement between qubits [59,60].…”

Section: Srmentioning

confidence: 90%

Controlling collective spontaneous emission with plasmonic waveguides

Liu¹,

Argyropoulos²

2016

Opt. Express

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Abstract:We demonstrate a plasmonic route to control the collective spontaneous emission of two-level quantum emitters. Superradiance and subradiance effects are observed over distances comparable to the operating wavelength inside plasmonic nanochannels. These plasmonic waveguides can provide an effective epsilon-near-zero operation in their cut-off frequency and Fabry-Pérot resonances at higher frequencies. The related plasmonic resonant modes are found to efficiently enhance the constructive (superradiance) or destructive (subradiance) interference between different quantum emitters located inside the waveguides. By increasing the number of emitters located in the elongated plasmonic channel, the superradiance effect is enhanced at the epsilon-near-zero operation, leading to a strong coherent increase in the collective spontaneous emission rate. In addition, the separation distance between neighboring emitters and their emission wavelengths can be changed to dynamically control the collective emission properties of the plasmonic system. It is envisioned that the dynamic modification between quantum superradiant and subradiant modes will find applications in quantum entanglement of qubits, low-threshold nanolasers and efficient sensors. References and links 1.E. M. Purcell, "Spontaneous emission probabilities at radio frequencies.," Phys.

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“…[78,81], only one (n = 0) fundamental Plasmon mode is considered and all other modes are cutoff in the limit of vanishing nanowire radius (R → 0). Chen modified the limit and considered the interaction between other Plasmon modes with the emitter on finite radius nanowire [82,83]. Their results are displayed in Fig.…”

Section: Se In Microcavities and Metallic Micro-and Nanostructuresmentioning

confidence: 99%

“…Metallic micro-or nano-structures can provide another cavity-free approach to control the interaction between the emitter and sub-wavelength confinement of the optical field. In recent years, both in experiments and theories, there have been a growing interest in controlling the efficiency of SE using metallic microor nano-structures, such as thin noble metal nanofilms [72][73][74][75][76][77], nanowires [78][79][80][81][82][83][84], and nanoparticles [85,86].…”

Section: Introductionmentioning

confidence: 99%

Spontaneous emission in micro- and nano-structures

Liu

2010

Front. Phys. China

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Spontaneous emission of emitters governing the performance of optoelectronic devices is a fundamental phenomenon, and it has strong environment-dependent characteristics. In this article, we mainly review the experimental and theoretical progresses in the control of spontaneous emission by manipulating optical modes with photonic crystals, optical microcavities and metallic nanostructures. The spontaneous emission from emitters in photonic crystals can be modified by the local density of states, and by employing photonic crystals, the devices' efficiency is enhanced, the angular radiation pattern can be engineered, and highly efficient optoelectronic devices are achieved through decreasing the radiative lifetime. In quantum optical devices, microcavities would alter the lifetime of an excited state through tuning the resonance in the frequency and positioning between the emitters and cavity field, and inducing the emitters to emit spontaneous photons in a desired direction. The emerging enhanced electromagnetic field near metallic nanostructures can help to control and manipulate the spontaneous emission of an emitter. The use of micro-and nano-structures to manipulate spontaneous emission will open unprecedented opportunities for realizing functional photonic devices.

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Spontaneous emission of quantum dot excitons into surface plasmons in a nanowire

Cited by 55 publications

References 13 publications

Dicke superradiance in solids [Invited]

Dicke superradiance in solids [Invited]

Controlling collective spontaneous emission with plasmonic waveguides

Spontaneous emission in micro- and nano-structures

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