Temporally resolved second-order photon correlations of exciton-polariton Bose-Einstein condensate formation

Adiyatullin, Albert F.; Anderson, Mitchell D.; Busi, Pierre V.; Abbaspour, Hadis; André, R.; Portella‐Oberli, M. T.; Deveaud, B.

doi:10.1063/1.4936889

Cited by 20 publications

(22 citation statements)

References 31 publications

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“…However as discussed above, the time t m to maximize the sub-Poissonian character becomes a crucial quantity from an experimental point of view. Indeed to observe the nonclassical signature one has to favor a situation where it occurs at short times before the signal-to-noise ratio becomes too small [31,46]. The most favorable situation is found for a large yet imperfect imbalance, i.e., 0 z 0 < 1.…”

Section: Resultsmentioning

confidence: 99%

“…While streak cameras currently demonstrate resolutions of a few picoseconds [31], their quantum efficiency of less than 1% might be too low to detect sufficient counts during reasonable integration times [46]. On the other hand, superconductorbased detectors demonstrate a very high efficiency up to 90% at the price of a lower time resolution in the range of tens of picoseconds.…”

Section: Discussionmentioning

confidence: 99%

“…The next milestone is the experimental demonstration of purely nonclassical effects in semiconductor microcavities [21], such as the polariton blockade [22], entanglement generation [23], nonclassical statistics [24], or the possibility to simulate quantum optics Hamiltonians [25]. Along this line, a few reports have brought initial evidence [26][27][28][29] of a quantum regime, and quantum measurements are still the focus of a number of experimental investigations [30][31][32]. The main limitation in the quest for nonclassical polariton states under standard driving resides in the dominant classical character of the polariton field, at the field amplitudes required to overcome the noise and dephasing characterizing semiconductor-based structures.…”

Section: Introductionmentioning

confidence: 99%

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Nonclassical statistics from a polaritonic Josephson junction

Flayac

Savona

2017

Phys. Rev. A

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We theoretically study the emission statistics of a weakly nonlinear photonic dimer during coherent oscillations. We show that the phase and population dynamics allow to periodically meet an optimal squeezing condition resulting in a strongly nonclassical emission statistics. By considering an exciton-polariton Josephson junction driven resonantly by a pulsed classical source, we show that a sizable antibunching should emerge in such a semiconductor system where intrinsic nonclassical signatures have remained elusive to date.

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Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Nonclassical statistics from a polaritonic Josephson junction

Flayac

Savona

2017

Phys. Rev. A

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“…Let us consider only the dominant light-matter coupling, which occurs between excitons and the C 1 mode, and estimate the ratio between blueshifts for samples S1 and S2 using Eq. (9). The Rabi coupling at low excitation power corresponds to (12) where d X denotes the dipole moment for Frenkel excitons (assumed to be pointing same direction) and E is the electric field for the cavity mode, directed along vector e EM .…”

Section: Theoretical Description Of the Blueshift In Organic Semimentioning

confidence: 99%

Coherence and Interaction in Confined Room-Temperature Polariton Condensates with Frenkel Excitons

et al. 2019

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The strong light-matter coupling of a microcavity mode to tightly bound Frenkel excitons in organic materials emerged as a versatile, room-temperature compatible platform to study nonlinear many-particle physics and bosonic condensation. However, various aspects of the optical response of Frenkel excitons in this regime remained largely unexplored. Here, we utilize a hemispheric optical cavity filled with the fluorescent protein mCherry to address two important questions in the field of room-temperature polariton condensates. First, combining the high quality factor of the microcavity with a well-defined mode structure allows us to provide a definite answer whether temporal coherence in such systems can become competitive with their low-temperature counterparts. We observe highly monochromatic and coherent light beams emitted from the condensate, characterized by a coherence time greater than 150 ps, which exceeds the polariton lifetime by two orders of magnitude. Second, the high quality of our device allows to sensibly trace the emission energy of the condensate, and thus to establish a fundamental picture which quantitatively explains the core nonlinear processes yielding the characteristic density-dependent blueshift. We find that the energy shift of Frenkel excitonpolaritons is largely dominated by the reduction of the Rabi-splitting due to phase space filling effects, which is influenced by the redistribution of polaritons in the system. While our finding of highly coherent condensation at ambient conditions addresses the suitability of organic polaritonics regarding their utilization as highly coherent room temperature polariton lasers, shedding light on the non-linearity is of great benefit towards implementing non-linear devices, optical switches, and lattices based on exciton-polaritons at room temperature.

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“…The laser is focused into a 3 µm spot mostly onto one mesa, which allows us to obtain high-contrast Josephson oscillations. The light emitted by the mesas is collected in the transmission geometry with a microscope objective and sent to a beamsplitter, realizing a Hanbury Brown and Twiss (HBT) setup, with a streak-camera that acts as a single photon detector for both arms [30,31]. The images acquired by the streak-camera are processed using a photon counting procedure.…”

Section: Polariton Josephson Junctionmentioning

confidence: 99%

Periodic squeezing in a polariton Josephson junction

et al. 2017

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The use of a Kerr nonlinearity to generate squeezed light is a well-known way to surpass the quantum noise limit along a given field quadrature. Nevertheless, in the most common regime of weak nonlinearity, a single Kerr resonator is unable to provide the proper interrelation between the field amplitude and squeezing required to induce a sizable deviation from Poissonian statistics. We demonstrate experimentally that weakly coupled bosonic modes allow exploration of the interplay between squeezing and displacement, which can give rise to strong deviations from the Poissonian statistics. In particular, we report on the periodic bunching in a Josephson junction formed by two coupled exciton-polariton modes. Quantum modeling traces the bunching back to the presence of quadrature squeezing. Our results, linking the light statistics to squeezing, are a precursor to the study of nonclassical features in semiconductor microcavities and other weakly nonlinear bosonic systems.

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Temporally resolved second-order photon correlations of exciton-polariton Bose-Einstein condensate formation

Abstract: International audienc

Cited by 20 publications

References 31 publications

Nonclassical statistics from a polaritonic Josephson junction

Nonclassical statistics from a polaritonic Josephson junction

Coherence and Interaction in Confined Room-Temperature Polariton Condensates with Frenkel Excitons

Periodic squeezing in a polariton Josephson junction

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