Figure 5.

Polarization resolved vibrational transients of locked Agp1 upon excitation at 400 nm. Signals measured for probe polarization parallel (black circles) or perpendicular (red open squares) to pump polarization. C₁₉ = O stretching vibration in the excited state at 1684 cm⁻¹ and 1688 cm⁻¹; bleach signal of the C₁₉ = O stretching vibration at 1698 cm⁻¹; C₁ = O stretching vibration in the excited state at 1712 cm⁻¹. Biexponential simulations (black and red lines) with time constants of 5.5 ps and 540 ps. Note, the best fit is found with time constants of 5.5 ps and 1 ns.