Floquet Engineering Using Pulse Driving in a Diamond Two-Level System Under Large-Amplitude Modulation

The nitrogen-vacancy center (NVC) in a diamond is promising platform for Floquet engineering. Using the synchronized readout, we investigate NVC's state driven by Carr-Purcell sequence large-amplitude ac magnetic field. We observe dynamics represented as Bessel functions up to 211th order systematic and quantitative agreement with theoretical model. Furthermore, numerical calculations show that effect of finite pulse duration error limits modulation amplitude available This work provides an approach precisely engineering, showing extendable range two-level systems.