Moire? Lattice in One-Dimensional Synthetic Frequency Dimension

The moire ' lattice has recently attracted broad interest in both solid-state physics and photonics where exotic phenomena in manipulating the quantum states are explored. In this work, we study the one-dimensional (1D) analogs of moire ' lattices in a synthetic frequency dimension constructed by coupling two resonantly modulated ring resonators with different lengths. Unique features associated with the flatband manipulation as well as the flexible control of localization position inside each unit cell in the frequency dimension have been found, which can be controlled via the choice of flatband. Our work therefore provides insight into simulating moire ' physics in 1D synthetic frequency space, which holds important promise for potential applications toward optical information processing.

Automated summary

In this work, the researchers investigate the one-dimensional analogs of moire ' lattices in a synthetic frequency dimension created by coupling two resonantly modulated ring resonators with different lengths. They discover unique features associated with manipulating the flatband and controlling the localization position inside each unit cell in the frequency dimension, which can be achieved by selecting the appropriate flatband. This study provides valuable insights into simulating moire ' physics in 1D synthetic frequency space and has potential applications in optical information processing.