Table 2.

Numerical fitting results of cubic and quartic phonon scattering from symmetric model

Peak	A	B	C	D	ω0 (cm−1)	Γ0 (cm−1)
4	−0.0234	−0.00002	0.0039	0.0000	83.32	4.18
7	−0.0077	−0.00008	0.0047	0.0000	111.46	4.30
12	−0.0440	0.00003	0.0095	0.0000	157.97	5.34
13	−0.0620	−0.0003	0.0528	0.0000	191.63	3.98
17	−0.0776	−0.0004	0.0652	0.0000	269.41	4.25
19	−0.2109	−0.0015	0.1911	0.0009	322.59	4.10
23	−0.2406	−0.0020	0.0603	0.0013	384.57	4.25
24	−0.0997	−0.0038	0.0504	0.0017	428.12	5.09