Table 2. Estimated values of the NLO parameters and figures of merit of all samples.

Sample	n 0	β( ×10−3 cm W−1)	n 2 ( ×10−5 cm2 W−1)	χ R (3) (×10−4) (esu)	χ Im (3) (×10−4) (esu)	χ (3) (×10−4) (esu)	T	FOM
GTO-1	2.114	4.074	2.181	24.729	1.955	24.806	0.009	100.628
GTO-2	2.150	3.173	3.305	38.779	1.576	38.811	0.005	195.789
GTO-3	2.132	3.085	1.760	20.298	1.506	20.353	0.009	107.237