Two-Color Single-Photon Emission from InAs Quantum Dots: Toward Logic Information Management Using Quantum Light

Rivas, David Fernández; Muñoz‐Matutano, Guillermo; Canet‐Ferrer, Josep; García-Calzada, Raúl; Trevisi, Giovanna; Seravalli, L.; Frigeri, P.; Martínez‐Pastor, Juan P.

doi:10.1021/nl403364h

Cited by 16 publications

(8 citation statements)

References 80 publications

(129 reference statements)

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“…Furthermore, we recorded power dependent μ-PL evolution with excitation above GaAs barrier (780 nm) (see supplementary information ). Using this excitation wavelength, neutral and negative transitions dominates the μ-PL spectrum, as GaAs barrier absorption produces extra single and correlated carrier diffusion and injection feeding channels 25 26 . In conclusion, our hypothesis of a positively charged QDs seems reasonable as structural information, excitation conditions, and μ-PL in different excitation conditions support it.…”

Section: Resultsmentioning

confidence: 99%

All-Optical Fiber Hanbury Brown & Twiss Interferometer to study 1300 nm single photon emission of a metamorphic InAs Quantum Dot

Muñoz‐Matutano

Barrera

Fernández-Pousa

et al. 2016

Sci Rep

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New optical fiber based spectroscopic tools open the possibility to develop more robust and efficient characterization experiments. Spectral filtering and light reflection have been used to produce compact and versatile fiber based optical cavities and sensors. Moreover, these technologies would be also suitable to study N-photon correlations, where high collection efficiency and frequency tunability is desirable. We demonstrated single photon emission of a single quantum dot emitting at 1300 nm, using a Fiber Bragg Grating for wavelength filtering and InGaAs Avalanche Photodiodes operated in Geiger mode for single photon detection. As we do not observe any significant fine structure splitting for the neutral exciton transition within our spectral resolution (46 μeV), metamorphic QD single photon emission studied with our all-fiber Hanbury Brown & Twiss interferometer could lead to a more efficient analysis of entangled photon sources at telecom wavelength. This all-optical fiber scheme opens the door to new first and second order interferometers to study photon indistinguishability, entangled photon and photon cross correlation in the more interesting telecom wavelengths.

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Section: Resultsmentioning

confidence: 99%

All-Optical Fiber Hanbury Brown & Twiss Interferometer to study 1300 nm single photon emission of a metamorphic InAs Quantum Dot

Muñoz‐Matutano

Barrera

Fernández-Pousa

et al. 2016

Sci Rep

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“…Even if photon losses are strongly affecting the measurement, only subsecond integration times would be needed. The fast readout of the statistical nature of the light fluctuations could be very interesting for the biophysics sector or to develop new quantum technology and computation strategies …”

Section: Discussionmentioning

confidence: 99%

Stroboscopic Space Tag for Optical Time-Resolved Measurements with a Charge Coupled Device Detector

et al. 2018

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Time-resolved measurements are extensively employed in the study of light−matter interaction at the nanoscale such as the exciton dynamics in semiconductors or the ultrafast intraband transitions in metals. Importantly, singlephoton correlation, quantum state tomography, and other techniques devoted to the characterization of quantum optics systems rely on time-resolved experiments, whose resolution which is bound to the time response of the detector and related electronics. For this reason, multiplexing or beam deflection techniques have been recently proposed to overcome the detector resolution and thus measure the final photon distribution characteristics. Taking advantage of both strategies, in this work we present a simple method to obtain time-resolved light transients independently on the detector response. The method is based on the stroboscopic synchronization of a given optical signal after spatial tag of its time response. To illustrate the potential of the approach, we present a simple setup able to measure transient optical signals with a time interval per pixel < 1 ns, using conventional CCD camera optical detection with large integration times. The system response depends on the stroboscopic synchronization parameters but not on the detector time resolution. We illustrate the operation and resolution of the proposed technique, while providing a numerical simulation of its potential use in photon correlation experiments.

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“…Although excitons are often thought of in association with diffusive energy flows 1 , it is possible to characterize their dynamics prior to a loss of coherence 2 . For instance, unstructured superpositions have been identified using quantum beat spectroscopy 3,4 , hot carrier luminescence spectroscopy 5 , emission spectra splitting 6 , two-time anisotropy decay 7 , transport spectroscopy 8 and Hanbury-Brown and Twiss interferometry 9 . Related excitonic Bloch oscillations have been measured using transient degenerate four-wave mixing 10 .…”

Section: Introductionmentioning

confidence: 99%

Engineering and manipulating exciton wave packets

et al. 2017

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When a semiconductor absorbs light, the resulting electron-hole superposition amounts to a uncontrolled quantum ripple that eventually degenerates into diffusion. If the conformation of these excitonic superpositions could be engineered, though, they would constitute a new means of transporting information and energy. We show that properly designed laser pulses can be used to create such excitonic wave packets. They can be formed with a prescribed speed, direction and spectral make-up that allows them to be selectively passed, rejected or even dissociated using superlattices. Their coherence also provides a handle for manipulation using active, external controls. Energy and information can be conveniently processed and subsequently removed at a distant site by reversing the original procedure to produce a stimulated emission. The ability to create, manage and remove structured excitons comprises the foundation for opto-excitonic circuits with application to a wide range of quantum information, energy and light-flow technologies. The paradigm is demonstrated using both Tight-Binding and Time-Domain Density Functional Theory simulations.

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Two-Color Single-Photon Emission from InAs Quantum Dots: Toward Logic Information Management Using Quantum Light

Cited by 16 publications

References 80 publications

All-Optical Fiber Hanbury Brown & Twiss Interferometer to study 1300 nm single photon emission of a metamorphic InAs Quantum Dot

All-Optical Fiber Hanbury Brown & Twiss Interferometer to study 1300 nm single photon emission of a metamorphic InAs Quantum Dot

Stroboscopic Space Tag for Optical Time-Resolved Measurements with a Charge Coupled Device Detector

Engineering and manipulating exciton wave packets

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