Nonlinear and electro-optic devices are present in our daily life with many applications: light sources for microsurgery, green laser pointers, or modulators for telecommunication. Most of them use bulk materials such as glass fibres or high-quality crystals, hardly integrable or scalable due to low signal and difficult fabrication. Generating nonlinear or electro-optic effects from materials at the nanoscale can expand the applications to biology and optoelectronics. However, the efficiency of nanostructures is low due to their small volumes.Here I will show several strategies to enhance optical signals by engineering metal-oxides at the nanoscale with the goal of developing nonlinear and electro-optic photonics devices for a broad spectral range. We use metal-oxides such as barium titanate (BTO) and lithium niobate (LNO) as an alternative platform for nanoscale nonlinear photonics. Recently, we focused on bottom-up assemblies of BTO nanoparticles to obtain electro-optic metasurfaces and quasi phase matching effects (Fig.1).The field of metal-oxides at the nanoscale has a huge potential of applications in nanophotonics, integrated optics and telecommunication. Fig. 1: Schematic view of an assembly of BTO nanoparticles for Mie driven random quasi-phase-matching. (Savo et al. Nature Photonics 14, 740, 2020).

Electro-Optic Metal-Oxides for Miniaturised Telecom and Sensing Devices

Keynote

keynote

Optical systems are ubiquitous in modern society, with an ever-increasing number of applications covering medical sciences (vision technologies, surgical instrumentation, medical imaging), spatial exploration (telescopes, lenses, spectrometers), telecommunications (fiber optics), information processing (quantum computing), industry (from cutting, welding to precision metrology) and military/weaponry technology, to name but a few examples. Furthermore, laser and optical technology are in general absolutely essential to performing applied research in areas such as chemistry and biology, providing fundamental analysis tools. The success of optical systems and technologies in high-end scientific research has also found its way into everyday consumer products such as printers, displays, discs, cameras and eyeglasses, not to forget that optical fiber is crucial to telecommunications in general and internet in particular. The 10th edition of PHOTOPTICS features three different tracks on Optics, Photonics and Lasers, covering both theoretical and practical aspects. 
CONFERENCE AREAS 
1 . Lasers 
2 . Optics 
3 . Photonics

PHOTOPTICS 2022

 The 10th edition of PHOTOPTICS  features three different tracks on Optics, Photonics and Lasers, covering both theoretical and practical aspects

Rachel GRANGE

1

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Electro-Optic Metal-Oxides for Miniaturised Telecom and Sensing Devices

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