Figure 5
(a) Optical density under different annealing times of 0, 1, 4, 9, and 16 h. (b) Raman spectra of the rhodamine 6G (R6G) dye on the flat LiNbO3 and fabricated PPE LiNbO3 substrates under different annealing times of 0, 1, 4, 9, and 16 h.
Figure 5 | Scientific Reports
