Synthesis and optical properties of basic fuchsin dyedoped PMMA polymeric films for laser applications: wide scale absorption band
M.I.Mohammed;
Abstract
Basic fuchsin dye-doped poly(methyl methacrylate) polymeric films were sensitized
with various dye concentrations ranging from 0.0833 to 1.667 wt% of basic fuchsin.
Their structure, linear absorption, and optical limiting properties were examined. The films
were prepared using a simple and fast casting technique dissolved in chloroform for both
the dye and the polymer. Structural characterizations were achieved by XRD, and the films
showed an amorphous hump supporting the noncrystalline structure of studied polymeric
composites. Spectrophotometer measurements were used to estimate the spectral absorption
measurements of the films such as transmittance, absorbance with the calculations of
absorption index (k), and optical energy band gap (Eg) in the wavelength region from 190
to 2500 nm. Results show that the optical constants change with increasing the dye doping
concentrations. It has been found that optical energy gap (Eg) appearing that, both direct
and indirect optical transitions are conceivable for these films. Optical limiting properties
of the films with various dye concentrations were studied using a continuous wave He–Ne
laser operating at 632.8 nm. The results appeared that the sample has an obvious optical
limiting effect. The designed BF/PMMA composites can be applicable in wide-scale
applications.
with various dye concentrations ranging from 0.0833 to 1.667 wt% of basic fuchsin.
Their structure, linear absorption, and optical limiting properties were examined. The films
were prepared using a simple and fast casting technique dissolved in chloroform for both
the dye and the polymer. Structural characterizations were achieved by XRD, and the films
showed an amorphous hump supporting the noncrystalline structure of studied polymeric
composites. Spectrophotometer measurements were used to estimate the spectral absorption
measurements of the films such as transmittance, absorbance with the calculations of
absorption index (k), and optical energy band gap (Eg) in the wavelength region from 190
to 2500 nm. Results show that the optical constants change with increasing the dye doping
concentrations. It has been found that optical energy gap (Eg) appearing that, both direct
and indirect optical transitions are conceivable for these films. Optical limiting properties
of the films with various dye concentrations were studied using a continuous wave He–Ne
laser operating at 632.8 nm. The results appeared that the sample has an obvious optical
limiting effect. The designed BF/PMMA composites can be applicable in wide-scale
applications.
Other data
Title | Synthesis and optical properties of basic fuchsin dyedoped PMMA polymeric films for laser applications: wide scale absorption band | Authors | M.I.Mohammed | Keywords | Basic fuchsin (BF) dye;PMMA XRD;Direct and indirect optical band gap;Optical limiting;Laser applications | Issue Date | 2018 | Publisher | springer | Journal | Opt Quant Electron | Volume | 50 |
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