A metasurface for non-linear optical generation with full phase control | Laboratoire MPQ

Researchers of the DON team at MPQ lab have obtained the first dielectric optical metasurface generating second harmonic with full phase control.

Figure:

SEM image of a Fresnel lens designed to focus a second-harmonic signal.

Thanks to this breakthrough, they achieved meta-arrays, meta-lenses and non-linear meta-holograms, with frequency conversions a million times more efficient than with metallic metasurfaces. These results, achieved within the PhD thesis of Carlo Gigli and a collaboration with the CEA funded by the ANR, are published in the journal Optica. They have been highlighted on the CNRS-INP website.

Contact:
Giuseppe Leo (giuseppe.leo@u-paris.fr)

Reference:
Tensorial phase control in nonlinear meta-optics, Carlo Gigli, Giuseppe Marino, Alberto Artioli, Davide Rocco, Costantino De Angelis, Julien Claudon, Jean-Michel Gérard, Giuseppe Leo, Optica 8, 269 (2021).

À lire aussi

On-chip generation of spatial entanglement

MPQ, QITE

The QITE team just published in Phys. Rev. Lett. its work on the generation of spatial entanglement in nonlinear waveguide arrays, in collaboration with C2N and INPHYNI. Combining the generation and manipulation of complex quantum states of light on a single chip is a...

An hybrid III-V / Silicon source of photon pairs

MPQ, QITE

The QITE team of MPQ lab, in collaboration with C2N lab, INPHYNI and STMicroelectronics, has just published its work on the development of integrated hybrid sources of entangled photons in PRX Quantum. Combining the generation and manipulation of quantum states of...

Emergent quantum phase transition in superconducting circuits

MPQ, THEORIE

The THEORIE team has recently published a significant theoretical study in Nature Communications on the topic of quantum critical phenomena. This research addresses a current debate that questions the traditional understanding of dissipative quantum phase transitions...

Probing and manipulating the superconducting state of NbSe2 in the 2D limit

PostDoc

Context:. The dynamics of superconductors (SC) driven out-of-equilibrium is governed by their collective mode spectrum, and in particular the SC amplitude mode which is an analog of the Higgs mode in high-energy physics [1]. In many materials the coexistence of SC...