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We present both experimental and theoretical investigations of a laser-driven quantum dot (QD) in the dressed-state regime of resonance fluorescence. We explore the role of phonon scattering and pure dephasing on the detuning-dependence of…

Mesoscale and Nanoscale Physics · Physics 2015-06-11 Ata Ulhaq , Stefanie Weiler , Chiranjeeb Roy , Sven Marcus Ulrich , Michael Jetter , Stephen Hughes , Peter Michler

Detailed properties of resonance fluorescence from a single quantum dot in a micropillar cavity are investigated, with particular focus on emission coherence in dependence on optical driving field power and detuning. Power-dependent series…

Mesoscale and Nanoscale Physics · Physics 2013-03-08 S. M. Ulrich , S. Ates , S. Reitzenstein , A. Löffler , A. Forchel , P. Michler

We investigate temperature-dependent resonance fluorescence spectra obtained from a single self-assembled quantum dot. A decrease of the Mollow triplet sideband splitting is observed with increasing temperature, an effect we attribute to a…

Mesoscale and Nanoscale Physics · Physics 2014-09-18 Yu-Jia Wei , Yu He , Yu-Ming He , Chao-Yang Lu , Jian-Wei Pan , Christian Schneider , Martin Kamp , Sven Höfling , Dara P. S. McCutcheon , Ahsan Nazir

We study the resonance fluorescence spectra of a driven quantum dot placed inside a high $Q$ semiconductor cavity and interacting with an acoustic phonon bath. The dynamics is calculated using a time-convolutionless master equation obtained…

Mesoscale and Nanoscale Physics · Physics 2011-08-24 C. Roy , S. Hughes

We experimentally demonstrate that the Mollow triplet sidebands of a quantum dot strongly coupled to a cavity exhibit anomalous power induced broadening and enhanced emission when one sideband is tuned over the cavity frequency. We observe…

Quantum Physics · Physics 2015-06-17 Hyochul Kim , Thomas C. Shen , Kaushik Roy-Choudhury , Glenn S. Solomon , Edo Waks

Emission from a resonantly excited quantum emitter is a fascinating research topic within quantum optics and a useful source for different types of quantum light fields. The resonance spectrum consists of a single spectral line below…

Mesoscale and Nanoscale Physics · Physics 2015-05-30 Ata Ulhaq , Stefanie Weiler , Sven M. Ulrich , Robert Roßbach , Michael Jetter , Peter Michler

Resonant excitation of solid state quantum emitters has the potential to deterministically excite a localized exciton while ensuring a maximally coherent emission. In this work, we demonstrate the coherent coupling of an exciton localized…

We report on resonance fluorescence from a single quantum dot emitting at telecom wavelengths. We perform high-resolution spectroscopy and observe the Mollow triplet in the Rabi regime--a hallmark of resonance fluorescence. The measured…

Nonlinear optical signals in optically driven quantum systems can reveal coherences and thereby open up the possibility for manipulation of quantum states. While the limiting cases of ultrafast and continuous-wave excitation have been…

Resonance fluorescence from atomic systems consists of a single spectral peak that evolves into a Mollow triplet for a strong excitation field. Photons from different peaks of the triplet show distinct photon correlation that make the…

Quantum Physics · Physics 2022-12-29 Boon Long Ng , Chang Hoong Chow , Christian Kurtsiefer

Resonance fluorescence from a single two-level system is a cornerstone of quantum optics. In the strong driving regime, its emission spectrum exhibits the iconic Mollow triplet, with each spectral component corresponding to a transition…

Quantum Physics · Physics 2025-10-01 Yuan Zhan , Zixuan Wang , Richard P. Mirin , Kevin L. Silverman , Shuo Sun

Although individual spins in quantum dots have been studied extensively as qubits, their investigation under strong resonant driving in the scope of accessing Mollow physics is still an open question. Here, we have grown high quality…

Mesoscale and Nanoscale Physics · Physics 2017-01-24 K. G. Lagoudakis , K. A. Fischer , T. Sarmiento , P. L. McMahon , M. Radulaski , J. L. Zhang , Y. Kelaita , C. Dory , K. Müller , J. Vučković

The mesoscopic characteristics of a quantum dot (QD), which make the dipole approximation (DA) break down, provide a new dimension to manipulate light-matter interaction [M. L. Andersen et al., Nat. Phys. 7, 215 (2011)]. Here we investigate…

Mesoscale and Nanoscale Physics · Physics 2016-05-04 Chun-Jie Yang , Jun-Hong An

We study the crucial role played by the solid-state environment in determining the photon emission characteristics of a driven quantum dot. For resonant driving, we predict a phonon-enhancement of the coherently emitted radiation field with…

Quantum Physics · Physics 2015-03-20 Dara P. S. McCutcheon , Ahsan Nazir

We study the response of a magnetic-field-driven superconducting qubit strongly coupled to a superconducting coplanar waveguide resonator. We observed a strong amplification/damping of a probing signal at different resonance points…

Superconductivity · Physics 2015-03-25 P. Neilinger , M. Rehák , M. Grajcar , G. Oelsner , U. Hübner , E. Il'ichev

The Mollow triplet is the definitive spectral signature of an optically dressed quantum emitter. We predict that for emitters coupled to localized phonons, this signature is not confined to the zero-phonon line. Under a strong resonant…

Quantum Physics · Physics 2026-01-22 Devashish Pandey , Corne Koks , Martijn Wubs , Nicolas Stenger , Jake Iles-Smith

Subwavelength arrays of quantum two-level emitters have emerged as an interesting platform displaying prominent collective effects that can be harnessed for applications. Here we study such arrays under strong coherent driving, realizing an…

Quantum Gases · Physics 2025-03-10 Orazio Scarlatella , Nigel R. Cooper

We present a theoretical study of the resonance fluorescence spectra of an optically driven quantum dot placed near a single metal nanoparticle. The metallic reservoir coupling is calculated for an 8-nm metal nanoparticle using a…

Mesoscale and Nanoscale Physics · Physics 2013-05-22 Rong-Chun Ge , C. Van Vlack , P. Yao , Jeff. F. Young , S. Hughes

We develop a realistic model of Rabi oscillations in a quantum-dot photodiode. Based in a multi-exciton density matrix formulation we show that for short pulses the two-level models fails and higher levels should be taken into account. This…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 J. M. Villas-Boas , Sergio E. Ulloa , A. O. Govorov

We study the processes in a quantum dot and its surrounds under resonant excitation with the addition of weak non-resonant light. We observe a decrease in inhomogeneous emission linewidth, as well as previously observed enhancement of…

Quantum Physics · Physics 2017-02-15 O. Gazzano , T. Huber , V. Loo , S. Polyakov , E. B. Flagg , G. S. Solomon
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