Nonclassical emission from single colloidal nanocrystals in a microcavity: a route towards room temperature single photon sources

Silicon Nitride Photonic Crystal Free-Standing Membranes: A Flexible Platform for Visible Spectral Range Devices

“…g ∝ 1/ √ V. Thus the properties of the photonic mode and, in particular, the electromagnetic field confinement in both time and spatial domains strongly affect the dynamic of the coupled system. At visible wavelengths, these phenomena have been observed by means of several optically confined systems [28,29], but 2D-PhCs represent the most promising structures, since they give the best control on the optical properties of the resonators. To date, PhC cavities for visible spectral range are based on various geometries [6,11,21] and on higher-order modes of the widely studied H1 defect [30] (sketched in Fig.…”

Recent advances on single photon sources based on single colloidal nanocrystals

“…A further step toward the practical real− ization of single NC based SPS was reported in Ref. 82. Qualtieri et al showed for the first time the occurrence of photon antibunching at room temperature from single colloidal CdSe/ZnS nanocrystals inserted in an ordered ar− ray of vertical microcavities.…”

“…Qualtieri et al showed for the first time the occurrence of photon antibunching at room temperature from single colloidal CdSe/ZnS nanocrystals inserted in an ordered ar− ray of vertical microcavities. The approach relies on the single NC localization technique obtained by direct electron beam lithography on top of a SiO 2 /TiO 2 Bragg mirror [82]. Subsequently, the array of localized single quantum emitters was clad by a second DBR consisting of four alternating quarter−wavelength thick layers of TiO 2 /SiO 2 .…”

Advances in Resist Materials and Processing Technology: Photonic Devices Fabricated by Direct Lithography of Resist/Colloidal Nanocrystals Blend

“…7c). This new strategy for the fabrication of high- : 3D-sketches of the whole structure and of the cavity region, respectively (arranged from Qualtieri et al, 2009b).…”