TPA cross sections and γ at 650–1100 nm fitted from Z-scan experimental data. The error range of theoretical fitting is about 10%.

Wavelength (nm)	Sample	β TPA (×10−14 m W−1)	σ TPA (GM)	γ (×10−28 m3 W−2)
650	INB3	10	154	—
	INT3	17	262	15
700	INB3	4.5	65	—
	INT3	10	143	6.0
750	INB3	0.5	7.0	—
	INT3	8.0	107	3.3
800	INB3	0.2	10	1.4
	INT3	3.5	38	1.3
900	INB3	6.0	67	2.0
	INT3	1.5	17	1.0
950	INB3	13	137	3.0
	INT3	2.0	21	0.5
1030	INB3	17	166	4.0
	INT3	8.5	83	0.5
1100	INB3	9.0	82	3.0
	INT3	5.0	46	0.3