High-precision group refractive index measurement of static and mechanically perturbed liquids based on femtosecond frequency-comb dispersive interferometry
A femtosecond optical-frequency-comb-based dispersive interferometric method is proposed for high-precision bulk-liquid group refractive index measurement. Broadband spectral interferograms are transformed into the delay domain, where the target side peak is selected by window filtering. The single-pass-equivalent opti...