Microcavity semiconductor laser with enhanced spontaneous emission

Yamamoto, Yoshihisa; Machida, Susumu; Björk, Gunnar

doi:10.1103/physreva.44.657

Cited by 279 publications

(145 citation statements)

References 23 publications

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“…This suggests that there is more coupling of the spontaneous emission into the lasing modes with lower losses in the bigger samples. This behavior is consistent with previous descriptions that the lasing threshold power density ( P thr ) is inversely proportional to the β × Q product,48, 49 where the larger β and Q factors would mean a lower threshold.…”

Section: Resultssupporting

confidence: 92%

Periodic Organic–Inorganic Halide Perovskite Microplatelet Arrays on Silicon Substrates for Room‐Temperature Lasing

et al. 2016

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Organic–inorganic metal halide perovskites have recently demonstrated outstanding efficiencies in photovoltaics as well as highly promising performances for a wide range of optoelectronic applications such as lasing, light emission, optical detectors, and even for radiation detection. Key to the realization of functional perovskite micro/nanosystems on the ubiquitous silicon optoelectronics platform is through sophisticated lithography. Despite the rapid progress made in halide perovskite lasing, direct lithographic patterning of perovskite films to form optical cavities on conventional substrates remains extremely challenging. This study realizes room‐temperature high‐quality factor whispering‐gallery‐mode lasing (Q ≈ 1210) from patterned lead halide perovskite microplatelets fabricated in periodic arrays on silicon substrate with micropatterned BN film as the buffer layer. By varying the size of the platelets, modal selectivity for single mode lasing can be achieved with different cavity sizes or by simply breaking the structural symmetry of the cavity through designing the pattern. Importantly, this work demonstrates a straightforward, versatile bottom‐up scalable strategy to realize high‐quality periodic perovskite arrays with variable cavity sizes for large‐area light‐emitting and optical gain applications.

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Section: Resultssupporting

confidence: 92%

Periodic Organic–Inorganic Halide Perovskite Microplatelet Arrays on Silicon Substrates for Room‐Temperature Lasing

et al. 2016

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“…When the length of the cavity is equal to the half wavelength, the coherence between the spontaneous emission photons is obviously enhanced [132]. We consider an ideal microcavity, where all radiating photons are coupled into a single cavity resonant mode.…”

Section: Low Threshold Lasermentioning

confidence: 99%

Exciton-plasmon coupling interactions: from principle to applications

et al. 2017

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Abstract:The interaction of exciton-plasmon coupling and the conversion of exciton-plasmon-photon have been widely investigated experimentally and theoretically. In this review, we introduce the exciton-plasmon interaction from basic principle to applications. There are two kinds of exciton-plasmon coupling, which demonstrate different optical properties. The strong exciton-plasmon coupling results in two new mixed states of light and matter separated energetically by a Rabi splitting that exhibits a characteristic anticrossing behavior of the exciton-LSP energy tuning. Compared to strong coupling, such as surface-enhanced Raman scattering, surface plasmon (SP)-enhanced absorption, enhanced fluorescence, or fluorescence quenching, there is no perturbation between wave functions; the interaction here is called the weak coupling. SP resonance (SPR) arises from the collective oscillation induced by the electromagnetic field of light and can be used for investigating the interaction between light and matter beyond the diffraction limit. The study on the interaction between SPR and exaction has drawn wide attention since its discovery not only due to its contribution in deepening and broadening the understanding of SPR but also its contribution to its application in light-emitting diodes, solar cells, low threshold laser, biomedical detection, quantum information processing, and so on.

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“…Nanolaser emission properties WW Chow et al 2 of b in atomic-molecular-optical systems. 1,32 This aim is accomplished with a consistent derivation of photon correlations along with the equations of motion for carrier and photon populations. We also include a description of QD excitation via the surrounding QWs in terms of carrier injection, capture and escape, as well as inhomogeneous broadening due to QD size and composition fluctuations.…”

Section: Nanolaser Model Incorporating Semiconductor Quantum Opticsmentioning

confidence: 99%

Emission properties of nanolasers during the transition to lasing

2014

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This review addresses ongoing discussions involving nanolaser experiments, particularly those related to thresholdless lasing or few-emitter devices. A quantum-optical (quantum-mechanical active medium and radiation field) theory is used to examine the emission properties of nanolasers under different experimental configurations. The active medium is treated as inhomogeneously broadened semiconductor quantum dots embedded in a quantum well, where carriers are introduced via current injection.Comparisons are made between a conventional laser and a nanolaser with a spontaneous emission factor of unity, as well as a laser with only a few quantum dots providing the gain. It is found that the combined exploration of intensity, coherence time, photon autocorrelation function and carrier spectral hole burning can provide a unique and consistent picture of nanolasers in the new regimes of laser operation during the transition from thermal to coherent emission. Furthermore, by reducing the number of quantum dots in the optical cavity, a clear indication of non-classical photon statistics is observed before the single-quantum-dot limit is reached. Keywords: nanolasers; optoelectronics; photon statistics; quantum light sources; quantum optics; semiconductor quantum dots; thresholdless lasing FROM CONVENTIONAL TO NANOLASERS Advances in nanofabrication have drastically reduced the size and increased the quality of optical cavities, enabling optical components with dimensions near the diffraction limit. 1-3 Among the driving forces for substantial miniaturization of lasers are technological applications, such as optical interconnects for information processing and communications, where reducing the power consumption is a priority. 4 From a research viewpoint, such efforts are motivated by a new quantum limit that is reachable with nanolasers consisting of a few emitters [5][6][7] or even a single emitter [8][9][10] and low intracavity photon numbers sustained by stimulated emission. 11 Entering the regime of cavity quantum electrodynamics (CQED), nanolasers can provide non-classical light for applications in quantum information. 12 Novel nano-optical structures, such as pillar vertical-cavity surfaceemitting lasers, microdisks, photonic lattices, nanowires and plasmonic resonators, 13-16 enable the extension of optical-mode confinement from one-dimensional to three-dimensional (3D). The features of 3D mode confinement include spectrally widely separated cavity modes, allowing for the possibility of only one mode overlapping with the spontaneous emission spectrum. CQED phenomena include the enhancement 17 or inhibition 18 of spontaneous emission.The spontaneous emission factor b is a quantitative measure of optical resonator control over spontaneous emission. This factor is defined as the spontaneous emission rate into the laser mode divided by the total spontaneous emission rate. For small values of b, which are typical for conventional lasers, the onset of stimulated emission produces a distinct jump in output intensity. Rec...

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Microcavity semiconductor laser with enhanced spontaneous emission

Cited by 279 publications

References 23 publications

Periodic Organic–Inorganic Halide Perovskite Microplatelet Arrays on Silicon Substrates for Room‐Temperature Lasing

Periodic Organic–Inorganic Halide Perovskite Microplatelet Arrays on Silicon Substrates for Room‐Temperature Lasing

Exciton-plasmon coupling interactions: from principle to applications

Emission properties of nanolasers during the transition to lasing

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