The complex refractive index of a LiF crystal surface layer irradiated by low-energy electrons is modified by the stable formation of color centers embedded in it. A simplified dipole-electromagnetic field interaction model has been adopted in order to estimate the dispersion curves of colored LiF from a single optical transmittance measurement. The excellent agreement with the corresponding experimental curves (obtained by means of spectrophotometry and ellipsometry) demonstrates this to be a promising approach for LiF-based optical waveguide characterization. © 1999 American Institute of Physics.
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)
Montecchi, M., Nichelatti, E., Mancini, A., & Montereali, R. M. (1999). Optical characterization of low-energy electron-beam-colored LiF crystals by spectral transmittance measurements. Journal of Applied Physics, 86(7), 3745 - 3750. https://doi.org/10.1063/1.371245