10-14 July 2016
Africa/Johannesburg timezone
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Plasmon excitation in OLED with the DTMaxwell code

11 Jul 2016, 16:30
Spartan 1

Spartan 1

Board: 080
Poster Presentation Poster Session


Anastasia Perepelkina (Keldysh Institute of Applied Mathematics)

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Verification of DTmaxwell code by simulation of OLED with corrugated cathode.

We have developed a Finite Difference Time Domain (FDTD) code DTMaxwell for General Purpose Graphical Processing Units (GPGPU) architecture with the use of Locally Recursive non-Locally Asynchronous (LRnLA) algorithms DiamondTorre [1].
Its performance was tested and good results were achieved on a desktop computer, as well as on many-GPU supercomputer.
This time, as a practical illustration of the advantages of our approach, we solve a large-scale problem of Surface Plasmon Polaritons (SPPs) excitation. SPP is excited by a point source placed in a close proximity (less than 100 nm) to a two-dimensional periodically corrugated metallic (silver) surface with a pitch of 400 nm. This problem is essential for simulation of SPP losses in both Organic and inorganic Light Emitting Diodes (OLEDs and LEDs) and design of OLEDs/LEDs with improved outcoupling efficiency. The simulation in question requires large meshes (>100GB of data) because of the large spatial decay lengths of SPPs (up to several tens of microns), whereas the mesh step should be kept sufficiently small (less than 5 nm) in order to account for strong field gradients at the dielectric-metal interfaces. Using this problem as a test case, we evaluate our code on different computers and compare to the previous solutions of such problem.

[1] Perepelkina A.Yu., Levchenko V. D., DiamondTorre Algorithm for High-Performance Wave Modeling // Keldysh Institute Preprints (2015) No. 18. 20 p.
[2] Sergei Belousov et al, Outcoupling efficiency of OLEDs with 2D periodical corrugation at the cathode, 2016 J. Phys. D: Appl. Phys. 49 085102

Primary author

Anastasia Perepelkina (Keldysh Institute of Applied Mathematics)


Dr Andrey Zakirov (Kintech Lab Ltd) Dr Sergei Belousov (Kintech Lab Ltd) Vadim Levchenko (Keldysh Institute for Applied Mathematics of Russian Academy of Sciences) Prof. Yasunari Zempo (Hosei University)

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