Ansys Lumerical CHARGE
3D Charge Transport Solver

Built on the finite element drift-diffusion method, CHARGE provides designers with the correct tools for comprehensive charge transport simulation in active optoelectronic and photonic semiconductor devices.

SOLVE THE UNSOLVABLE

Improve your charge transport simulations across a range of applications

Lumerical CHARGE provides designers with the tools for comprehensive charge transport simulation in active photonic and optoelectronic semiconductor devices. CHARGE self-consistently solves the system of equations describing electrostatic potential (Poisson’s equations) and density of free carriers (drift-diffusion equations). Automatic and guided mesh refinement tools are provided to achieve accuracy while minimizing computational effort.

  • Finite-element drift-diffusion/Poisson Solver
    Finite-element drift-diffusion/Poisson Solver
  • 3D CAD design environment
    3D CAD design environment
  • Adaptive mesh generation based on doping, optical, and thermal profiles
    Adaptive mesh generation based on doping, optical, and thermal profiles
ansys lumerical charge

Quick Specs

Lumerical CHARGE provides complete simulation and modeling solution so you can focus on ideas and products. A range of features create flexible solutions for 3D charge transport, simulating across a mixture of material properties and a wide range of application types.

  • Parameterizable Simulation Objects
  • Comprehensive inlet and outlet condition
  • Scriptable Material Properties
  • Electrical/Thermal Material Models Solver
  • Automatic Finite Element Meshing
  • Geometry-Linked Sources/Monitors
  • Small Signal AC Analysis
  • Isothermal, Non-Isothermal, Electro-Thermal Simulation
  • Flexible Visual Material Database

Resources

See more Resources

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Webinar

Ansys Lumerical’s Component Level Tools

This webinar will start with an overview of the broad set of component level solvers it offers with an emphasis on FDTD and MODE. It will then show how these solvers can be used to simulate and optimize novel designs in a wide range of applications including micro-LEDs, augmented reality, magneto-optics and lasers.

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Application

CMOS image sensor - Angular response 3D

In this example, the angular response of a CMOS image sensor is characterized through optical simulations using the FDTD solver and electrical simulations using the CHARGE solver.

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Application

PIN Mach-Zehnder modulator

In this example, we study the performance of a PIN Mach-Zehnder modulator using CHARGE (electrical simulation) and MODE (optical simulation).

CAPABILITIES

Accurate and Comprehensive Charge Transport Simulation

Built on the finite element drift-diffusion method, CHARGE gives you the proper tools for charge transport simulation as you design photonic semiconductor devices. CHARGE self-consistently solves the system of equations describing electrostatic potential (Poisson’s equations) and density of free carriers (drift-diffusion equations). The automatic and guided mesh refinement tools provide high levels of accuracy while minimizing computational effort. 

ansys lumerical charge

 

Key Features

  • Self-Consistent Charge/Heat Modeling
  • Steady-state, Transient and Small-signal AC simulation
  • Simulation Automation
  • Automatic Mesh Refinement
  • Interoperable Multiphysics Simulations
  • Finite Element IDE

Discover self-heating effects of high-current devices within Lumerical CHARGE. 

Lumerical CHARGE is interoperable through multiple tools and scripting languages. Use a single file to run optical, thermal and electrical simulations before post-processing data. 

Lumerical Charge provides automatic mesh refinement based on geometry, materials, doping, and optical or heat generation.

Perform multiphysics simulations for photovoltaic and electro-optic needs with self-consistent charge and heat transport simulation.

Webinars on Demand

View all Photonics Webinars


Application Gallery

View all Photonics Applications

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Application

CMOS image sensor - Angular response 3D

In this example, the angular response of a CMOS image sensor is characterized through optical simulations using the FDTD solver and electrical simulations using the CHARGE solver.

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Application

Micro-LED

In this example, we use the STACK optical solver and FDTD to characterize a cylindrical micro-LED and extract the emitted power and radiation pattern.

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Application

PIN Mach-Zehnder modulator

In this example, we will study the performance of a PIN Mach-Zehnder modulator using CHARGE (electrical simulation) and MODE (optical simulation).


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CHARGE Product Reference Manual

The CHARGE reference manual provides detailed descriptions of product features.

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