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Component Design
LED Utility™ Product Overview

The LED Utility[1] accurately simulates novel LED structures and all materials involved. The utility simplifies common tasks associated with LED design and aids in the rigorous computation of extraction ratios and radiation patterns. It utilizes RSoft's CAD to describe the geometry and material properties and uses RSoft's flagship simulation tool FullWAVE for modeling the LED. The RSoft CAD interface is a fully parametric, highly flexible user-friendly design environment with 3D editing capabilities to simplify the description of complex LED geometries. The underlying FullWAVE simulation is based on the Finite-Difference Time-Domain (FDTD) algorithm which is an ab-initio approach for solving Maxwell's equations with no inherent approximations that is well suited to accurately model the intricacies of an LED structure.

[1]The LED Utility provides owners of FullWAVE, RSoft's optical simulation tool the functionality described here. All simulation tools are licensed separately.


Benefits

  • Rigorous optical simulation is performed by RSoft's FullWAVE simulation tool
  • Automated optical simulation of incoherent LED structures
  • Fully integrated into the RSoft Multi Variable Scanning and Optimization tool MOST
  • Advanced capabilities allow for clustered simulation environment for massive computational increases in speed and efficiency.
  • Fully integrated into the RSoft CAD Environment

Applications

  • LED design
  • LED extraction efficiency optimization
  • Studying effect of patterns on LED operation

FEATURED APPLICATION

Spectrum of extraction ratio for pulsed simulation
LED Utility Fig 1

IMAGES

Schematic of a LED structure with 2D Photonic Crystal grating on top for extraction enhancement.
LED Utility Fig 2
Radiation plot for patterned LED
LED Utility Fig 3
Working mechanism of extraction enhancement with PhC Grating
LED Utility Fig 4

Features

  • Arbitrary LED geometry can be created in the RSoft CAD
  • Periodic arrays can easily be generated using new Dynamic Array Layout
  • Material dispersion can be included
  • Rigorous optical modeling via RSoft's FullWAVE tool
  • User-defined radiation spectrum
  • Outputs extraction ratio and radiation patterns