Akademik Veri Yönetim Sistemi
JOURNAL OF POLYTECHNIC-POLITEKNIK DERGISI, 2024 (ESCI, TRDizin)
This study focused on examining the influence of varying the concentration of nickel oxide (NiO) and the intensity of input on the nonlinear absorption (NA) and optical limiting features of composite films. Linear optical measurements revealed the localized defect states increased with increasing NiO concentration. Nonlinear optical measurements revealed that the stronger NA feature was observed for the highest NiO concentration and it was enhanced with increase of the input intensity. This result was attributed to increase of defect states with higher concentrations of NiO, which favor NA mechanisms contributing to the overall NA. The strongest optical limiting with the lower optical limiting threshold value was determined for NiO_20% composite films. with Due to the high linear transmittance, strong NA with strong optical limiting, NiO_20% composite film can be good candidates for use as an efficient optical limiter in the visible wavelength region.