A dataset of an all-dielectric chiral metasurface based on BIC

The transmission spectra at different wavelengths were investigated, and the corresponding CD values were calculated.File 1 presents the three energy bands of the metasurface.File 2 presents the Q factors corresponding to the energy bands.File 3 presents the Q‑factors under different δ values.File 4 presents the transmission spectra and CD for δ = 30 nm.File 5 presents the multipole decomposition results for δ = 30 nm.File 6 presents the transmission spectra and CD for θ = 4°.File 7 presents the transmission spectra and CD for φ = 40°.File 8 presents the CD for n = 1.3.The model provides simulated transmission‑spectrum results at δ = 30 nm.