Enhanced chiral response from the Fabry–Perot cavity coupled meta-surfaces

Yang Ze-Jian^{1, 2}, Hu De-Jiao^{1, 2}, Gao Fu-Hua^{1, 2, †,}, Hou Yi-Dong^{1, 2}

Analyses of CD spectra for different geometric parameters: (a) CD spectra as a function of wavelength and cavity length for d_x/d_y = 100 nm/100 nm; (b) CD spectra for d_x/d_y = 200 nm/100 nm; (c) CD spectra for d_x/d_y = 100 nm/200 nm; (d) Extracted maximum CD spectra for the above situations.