Nanophotonics and Quantum Light Emitters

Light matter interaction at the nanoscale occurs in novel ways. Understanding these interactions is not only of fundamental importance but is also of interest for applications in optical sensing, optoelectronics, high performance integrated optics and quantum science. Our group investigates innovative light emitter and their integration in photonic structures capable to manipulate and confine light at the nanoscale.

Semiconductor quantum dots (QDs), carbon nanotubes (CNTs), 2D semiconductors materials, are the basic materials for the realization of high-performance optoelectronic devices, like single photon sources, and they can be also useful as building blocks for spintronic devices and for the creation and manipulation of quantum bits. Micro and nano resonators allow to confine light in hot spots with reduced dimensions and with a high local density od states (LDOS) that can significantly enhance the radiative emission scof quantum emitters.
We are currently addressing several frontier topics with QDs and CNTs, either realized with traditional methods or with site controlled fabrication techniques based on nano-photonics, by means of low-temperature confocal spectroscopy and photon coincidence measurements. We are also investigating, with subwavelength spatial resolution, the LDOS of ordered and disordered dielectric systems as photonic crystal cavities, silicon ring resonators, dielectric Mie scatterers and hyperuniform geometries, by means of scanning-near-field optical microscopy, dark-field microscopy, and finite difference time domain simulations.

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