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Gold nanoclusters (AuNCs) have captured significant interest for their photoluminescent properties; however, their rapid photodynamics remain elusive while probed by ensemble-averaging spectroscopy techniques. To address this challenge, we…

We demonstrate a method to perform spectroscopy of near-infrared single photons without the need of dispersive elements. This method is based on a photon energy resolving transition edge sensor and is applied for the characterization of…

Single-photon emitters integrated into quantum optical circuits will enable new, miniaturized quantum optical devices. Here, we numerically investigate semiconductor quantum dots embedded to low refractive index contrast waveguides. We…

Analysing extended emission in photometric observations of star-forming regions requires maps free from compact foreground, embedded, and background sources, which can interfere with various techniques used to characterise the interstellar…

天体物理仪器与方法 · 物理学 2025-04-02 M. Madarász , G. Marton , I. Gezer , S. Lehner , J. Roquette , M. Audard , D. Hernandez , O. Dionatos

We demonstrate by time-resolved resonance fluorescence measurements on a single self-assembled quantum dot an internal photo-effect that emits electrons from the dot by an intra-band excitation. We find a linear dependence of the optically…

介观与纳米尺度物理 · 物理学 2021-02-24 Pia Lochner , Jens Kerski , Annika Kurzmann , Andreas D. Wieck , Arne Ludwig , Martin Geller , Axel Lorke

Room temperature detection of single quantum emitters has had a broad impact in fields ranging from biophysics to material science, photophysics, or even quantum optics. These experiments have exclusively relied on the efficient detection…

其他凝聚态物理 · 物理学 2008-02-11 P. Kukura , M. Celebrano , A. Renn , V. Sandoghdar

Spectral filtering of resonance fluorescence is widely employed to improve single photon purity and indistinguishability by removing unwanted backgrounds. For filter bandwidths approaching the emitter linewidth, complex behaviour is…

We present an analytically tractable model of a driven quantum harmonic emitter, such as an oscillating charged dipole, emitting radiation via resonance fluorescence. With this model we are able to characterize the quantum mechanical…

量子物理 · 物理学 2026-04-14 Yuliya Bilinskaya , Sreenath K. Manikandan

A numerical modeling of the radiation emitted from a Luminescent dye embedded in a finite one-dimensional photonic crystal is presented. The Photonic Band Structure and the Photonic Density of States are derived using classical…

光学 · 物理学 2010-12-30 J. Manzanares-Martinez , P. Castro-Garay

Quantum dots acting as single photon emitters in the blue-green range are fabricated and characterized at cryogenic temperature. They consist in CdSe dots inserted in (Zn,Mg)Se nanowires with a thick shell. Photoluminescence spectra, decay…

The light emission rate of a single quantum dot can be drastically enhanced by embedding it in a resonant semiconductor microcavity. This phenomenon is known as the Purcell effect, and the coupling strength between emitter and cavity can be…

介观与纳米尺度物理 · 物理学 2015-05-13 M. Munsch , A. Mosset , A. Auffèves , Signe Seidelin , J. P. Poizat , J. -M. Gérard , A. Lemaître , I. Sagnes , P. Senellart

Solid-state quantum emitters have emerged as robust single-photon sources and addressable spins: key components in rapidly developing quantum technologies for broadband magnetometry, biological sensing, and quantum information science.…

The authors investigate the spontaneous emission dynamics of self-assembled InGaAs quantum dots embedded in GaAs photonic crystal waveguides. For an ensemble of dots coupled to guided modes in the waveguide we report spatially, spectrally,…

The detection of fluorescence with submolecular resolution enables the exploration of spatially varying photon yields and vibronic properties at the single-molecule level. By placing individual polycyclic aromatic hydrocarbon molecules into…

介观与纳米尺度物理 · 物理学 2018-08-01 Jörg Kröger , Benjamin Doppagne , Fabrice Scheurer , Guillaume Schull

Rayleigh criterion has been continuously broken through with modern detecting instruments, many methods on resolving two emitters below the classical diffraction limit has been developed, one of these methods is detecting high order…

量子物理 · 物理学 2018-01-01 Xiao Liang , Yong-sheng Zhang

Photonic nanostructures provide means of tailoring the interaction between light and matter and the past decade has witnessed a tremendous experimental and theoretical progress in this subject. In particular, the combination with…

量子物理 · 物理学 2015-06-05 Peter Lodahl , Sahand Mahmoodian , Søren Stobbe

We present an experimental comparison and a theoretical analysis of the signal-to-noise ratios in fluorescence and extinction spectroscopy of a single emitter. We show that extinction measurements can be advantageous if the emitter is…

量子物理 · 物理学 2008-11-07 Gert Wrigge , Jaesuk Hwang , Ilja Gerhardt , Gert Zumofen , Vahid Sandoghdar

A simple calculation method for photon statistics of frequency-filtered fields is proposed. This method, based on eigenvalue decompositions of superoperators, allows us to study effects on the photon statistics of spectral filtering by…

量子物理 · 物理学 2015-09-23 Kenji Kamide , Satoshi Iwamoto , Yasuhiko Arakawa

Low-power, high-speed and bright electrically driven true single-photon sources, which are able to operate at room temperature, are vital for the practical realization of quantum communication networks and optical quantum computations.…

量子物理 · 物理学 2019-05-14 Igor A. Khramtsov , Mario Agio , Dmitry Yu. Fedyanin

We investigate the quantum optical properties of a single photon emitter coupled to a finite-size metal nanoparticle using a photon Green function technique that rigorously quantizes the electromagnetic fields. We first obtain pronounced…

介观与纳米尺度物理 · 物理学 2012-02-07 C. Van Vlack , Philip Trøst Kristensen , S. Hughes