Strongly coupled single quantum dot in a photonic crystal waveguide cavity

Brossard, Frederic S. F.; Xl, Xu; Williams, D. A.; Hadjipanayi, Maria; Hugues, Maxime; Hopkinson, M.; Wang, X.; Taylor, Robert A.

doi:10.1063/1.3487937

Cited by 42 publications

(26 citation statements)

References 21 publications

(21 reference statements)

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“…For devices at the low energy tail of the QD ensemble, the Q increases to about 10 000. This is comparable to Q-factors of e-beam written cavities in the same wafer as shown in our previous work, [3] indicating that absorption in the III-V material may be the limiting factor. A PL map, shown in Figure 2B, demonstrates the localized cavity mode, which is estimated to have a small modal volume of about 2 (λ/n) 3 (according to numerical simulations incorporating the truncated Gaussian profile of the strip).…”

Section: Doi: 101002/adma201704425supporting

confidence: 72%

“…In particular, photonic crystal cavities have the highest finesse of any photonic nanocavity, lending themselves to applications in strong-coupling, [1][2][3] single photon sources, [4,5] low threshold lasers, [6,7] and sensing. [8][9][10][11] Recently, deep UV photolithography has been successfully employed for the fabrication of high quality PhC cavities, [12,13] thus paving the way for their mass production.…”

Section: Doi: 101002/adma201704425mentioning

confidence: 99%

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Inkjet‐Printed Nanocavities on a Photonic Crystal Template

et al. 2017

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the possibility of creating nanocavities by depositing a low-refractive-index polymer on a photonic crystal waveguide. [14][15][16][17] This is suggestive of the technological and scientific potential that could be realized by bringing patterned unconventional low-refractive-index materials into intimate contact with conventional inorganic PhC templates: on the one hand, the production of photonic devices by postprocessing a generic, mass-produced, photonic crystal template; on the other hand, new device architecture/functionalities and fundamental light-matter interaction studies through the wealth of solution-processable nano-, hybrid, and soft materials that have emerged over the last decade. However, this potential has been frustrated thus far, as the approaches pursued to date for the deposition of the low-refractive-index materials relied on e-beam or UV exposure technique, both being highly material specific and requiring multiple complex fabrication steps.Here we propose and demonstrate the printing of nanocavities using an electrohydrodynamic jet printer with femtoliter droplet delivery [18][19][20] on a generic 2D photonic crystal template. Our free-form, bottom-up approach offers the possibility of assigning by design any solution processable material on the surface of a photonic crystal in a single fabrication step. In the following, we demonstrate the fine tuning of the cavity emission and the reproducible printing of nanocavities with high Q factors, which also enable the fabrication of photonic molecules with controllable splitting. Three different cavity designs areThe last decade has witnessed the rapid development of inkjet printing as an attractive bottom-up microfabrication technology due to its simplicity and potentially low cost. The wealth of printable materials has been key to its widespread adoption in organic optoelectronics and biotechnology. However, its implementation in nanophotonics has so far been limited by the coarse resolution of conventional inkjet-printing methods. In addition, the low refractive index of organic materials prevents the use of "soft-photonics" in applications where strong light confinement is required. This study introduces a hybrid approach for creating and fine tuning high-Q nanocavities, involving the local deposition of an organic ink on the surface of an inorganic 2D photo nic crystal template using a commercially available high-resolution inkjet printer. The controllability of this approach is demonstrated by tuning the resonance of the printed nanocavities by the number of printer passes and by the fabrication of photonic crystal molecules with controllable splitting. The versatility of this method is evidenced by the realization of nanocavities obtained by surface deposition on a blank photonic crystal. A new method for a free-form, high-density, material-independent, and highthroughput fabrication technique is thus established with a manifold of opportunities in photonic applications.

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Section: Doi: 101002/adma201704425supporting

confidence: 72%

Section: Doi: 101002/adma201704425mentioning

confidence: 99%

Inkjet‐Printed Nanocavities on a Photonic Crystal Template

et al. 2017

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“…However, in order to facilitate stable experiments with this setup, one needs a strong coupling between light and matter in order to reduce the losses induced by the spontaneous emission. Fortunately, over the past few years, this so called strong-coupling regime [54,55,62] has become experimentally accessible for a large number of different setups [53,[56][57][58][59][60][61]63]. However, a drawback of the strong coupling is the short polariton lifetime which prevents to reach thermal equilibrium.…”

Section: B Cavity Qed Latticesmentioning

confidence: 99%

Ginzburg-Landau theory for the Jaynes-Cummings-Hubbard model

Nietner¹,

Pelster²

2012

Phys. Rev. A

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We develop a Ginzburg-Landau theory for the Jaynes-Cummings-Hubbard model which effectively describes both static and dynamic properties of photons evolving in a cubic lattice of cavities, each filled with a two-level atom. To this end we calculate the effective action to first-order in the hopping parameter. Within a Landau description of a spatially and temporally constant order parameter we calculate the finite-temperature mean-field quantum phase boundary between a Mott insulating and a superfluid phase of polaritons. Furthermore, within the Ginzburg-Landau description of a spatio-temporal varying order parameter we determine the excitation spectra in both phases and, in particular, the sound velocity of light in the superfluid phase.

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“…The details of the fabrication can be found elsewhere [5]. Photoluminescence (PL) measurements were carried out at 4K by mounting the sample in a continuous-flow liquid helium cryostat.…”

Section: Measurements and Resultsmentioning

confidence: 99%