An array of nano-pillar LEDs was simulated by means of finite-difference time-domain (FDTD) method. The open access software, MEEP, was used as FDTD engine and an additional function for transforming a near field to the far-field was written in Matlab. The example of the results is shown on the image on the right.
- FDTD simulation of near-field above the LED device,
- transforming a near-field to the far field radiation pattern by means of dedicated Matlab function,
- simulation of an incoherent radiation done by adding multiple simulations for orthogonal dipoles,
- positioning dipoles in various positions,
- computation for a single wavelength or integrated over emission spectrum.
- Bash scripting,
- HDF5 file handling.
Papers related to this work:
- S. M. Lis, P.-M. Coulon, E. D. Le Boulbar, I. Girgel, C. J. Lewins, P. A. Shields, D. W. E. Allsopp, “Controlling of the Angular Emission of InGaN/GaN Core-Shell nano-LEDs array”, 11th International Conference on Nitride Semiconductors, Beijing, China (2015) – oral presentation
- S. M. Lis, S. E. J. O’Kane, S. A. Fox, C. J. Lewins, Y. D. Zhuang, J. Sarma, P. A. Shields, D. W. E. Allsopp, “Designing InGaN/GaN nano-LED arrays for entendue-limited applications”, E-MRS 2014 Spring Meeting, Lille, France (2014) – oral presentation
- S. M. Lis, S. E. J. O’Kane, C. J. Lewins, S. A. Fox, Y. D. Zhuang, J. Sarma, D. W. E. Allsopp, “Factors Affecting the Directionality of InGaN/GaN Nanorod LED Arrays”, 10th International Conference on Nitride Semiconductors, Washington D.C., USA (2013) – oral presentation