Electron irradiation induced reduction of the permittivity in chalcogenide glass (As2S3) thin film

  title={Electron irradiation induced reduction of the permittivity in chalcogenide glass (As2S3) thin film},
  author={Dami'an P. San-Rom'an-Alerigi and Dalaver Hussain Anjum and Yaping Zhang and Xiaoming Yang and Ahmed Benslimane and Tien Khee Ng and Mohammad A. A. Alsunaidi and Boon Siew Ooi},
  journal={Journal of Applied Physics},
In this paper, we investigate the effect of electron beam irradiation on the dielectric properties of As2S3 chalcogenide glass. By means of low-loss electron energy loss spectroscopy, we derive the permittivity function, its dispersive relation, and calculate the refractive index and absorption coefficients under the constant permeability approximation. The measured and calculated results show a heretofore unseen phenomenon: a reduction in the permittivity of ≥40%. Consequently a reduction of… Expand

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