Lasing dynamics study by femtosecond time-resolved fluorescence non-collinear optical parametric amplification spectroscopy |
Setup of femtosecond time-resolved fluorescence non-collinear optical parametric amplification spectroscopy. BS: beam splitter; L1–L5: plano-convex lens; F1–F2: filter; S: sample; HR: high reflective mirror at 400 nm; NOPA: non-collinear optical parametric amplifier. |