Retrieving Characteristic Times in High-Harmonic Generation Driven by a Two-Color Femtosecond Field from the Spectral Phase of the Emitted RadiationRemoveTrevor Olsson, William Medlin, Jody Davis, Scott Chumley, Courtney Wicklund, Nicholas San Juan, Gregory Young, and Guillaume M. LaurentPhys. Rev. Lett. 136, 193201 (2026)