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Updated: Mar 30, 2026

Low-energy Cathodoluminescence for OxyNitride Phosphors
Published on: November 15, 2016
Intensity distribution analysis of cathodoluminescence using the energy loss distribution of electrons
Masahiro Fukuta1, Wataru Inami2, Atsushi Ono2
1Graduate School of Science and Technology, Shizuoka University, 3-5-1, Johoku, Naka, Hamamatsu 432-8011, Japan.
Abstract:
We present an intensity distribution analysis of cathodoluminescence (CL) excited with a focused electron beam in a luminescent thin film. The energy loss distribution is applied to the developed analysis method in order to determine the arrangement of the dipole locations along the path of the electron traveling in the film. Propagating light emitted from each dipole is analyzed with the finite-difference time-domain (FDTD) method. CL distribution near the film surface is evaluated as a nanometric light source. It is found that a light source with 30 nm widths is generated in the film by the focused electron beam. We also discuss the accuracy of the developed analysis method by comparison with experimental results. The analysis results are brought into good agreement with the experimental results by introducing the energy loss distribution.
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