Table 1. Nonlinear Optical Absorption Coefficients and Absorption Cross-Section Values Obtained from the Z-Scan Experiments Using 5 and 100 fs Laser Pulses at 532 and 800 nm, Respectively.

compounds	excitation conditions
	5 ns, 532 nm				100 fs, 800 nm
	laser pulse energy (μJ)	LT (%)	β (m/W)	δ2PA (cm6 s2)	energy (μJ)	LT (%)	γ (m3/W2)	δ3PA (cm6 s2)
TrSR1	50	89	2 × 10–10	1.603 × 10–39	7	92	2.2 × 10–21	2.64 × 10–89
TrSR2	50	91	6.3 × 10–10	6.378 × 10–39	7	92	4.6 × 10–21	7.695 × 10–89
TrSR3	50	91	7.9 × 10–10	8.810 × 10–39	7	91	7.4 × 10–21	1.363 × 10–88