Nanophotonics

The photonics of one-dimensional nano-objects (1D NOs), and in particular carbon nanotubes, is booming. The unique optical properties of 1D NOs are being studied with a view to designing and producing innovative photonics-based components.

The electro-optical properties of semiconductor nanotubes (electroluminescence and photocurrent) are very promising for emitter or detector applications in the near infrared. This topic is synergistic with the 1D confinement theme (link) via the encapsulation of optically active molecules within this type of nanotube.

We are also actively working on metallic nanotubes, studying their optical properties and their potential applications as the ‘ultimate’ plasmonic nano-antennas.

This theme required the creation of a versatile micro-photoluminescence bench (link) to carry out electro-optical experiments, and also benefits from strong collaboration with the theoretical physics axe of the L2C.

(left) Reflectometry measurement of the optical properties of a metallic carbon nanotube carpet and determination of the real and imaginary optical indices.
(right) Comparison of the experimental plasma frequency with theoretical models.

On going or defended Ph.D thesis :

  • D. Baux (2020-2023)

References :

  • Mater. Horiz. (2023), 10, 983
  • J. Phys. Chem. C (2023), 127, 19088
  • Spectrochimica Acta Part A, (2021), 259, 119849