Imaging objects hidden in highly scattering media using femtosecond second-harmonic-generation cross-correlation time gating.
Yoo KM, Xing Q, Alfano RR. Imaging objects hidden in highly scattering media using femtosecond second-harmonic-generation cross-correlation time gating. Opt Lett. 1991 Jul 01; 16(13):1019-21.