Jin Xianmin's team achieves free regulation of Zener tunneling in photonic honeycomb lattices

Recently, Jin Xianmin's team from the School of Physics and Astronomy, Shanghai Jiao Tong University published the latest research paper entitled "Inhibition and Reconstruction of Zener Tunneling in Photonic Honeycomb Lattices" [Advanced Materials 34, 2110044 (2022)] in Advanced Materials, an international authoritative journal of materials scien.

In lattice materials with periodicity, the coherent transport process of particles is determined by the energy band structu.

Left: frontispiece cover, right: Photonic honeycomb lattice and regulation of Zener tunneling between energy bands

The research team constructed a photonic honeycomb lattice on a photonic chip, and adjusted the coupling coefficients between the lattice points in the vertical and oblique directio.

Zener tunneling between energy bands in momentum space and oscillatory transport of quantum states, see paper for details

In the experiments, Gaussian beams were dynamically transmitted on a photonic chip integrating three-parameter lattice arra.

Based on the precise control capability of femtosecond laser direct writing technology, artificial photonic materials can flexibly realize specific energy band structures, and directly correlate the coherent transport process of quantum states with the energy band characteristics, which provides a basis for further research on the topology of momentum spa.

The research team would like to thank the major projects of the Shanghai Municipal Science and Technology Commission and the key projects of the National Natural Science Foundation of China for their suppo.

Paper link:

https://onlinelibra.