We are proud to announce the fifth annual winner of a collaboration with Assistant Professor Can Bayram of the University of Illinois at Urbana-Champaign. As part of this collaboration, students worked with Crosslight TCAD tools in an academic setting and the best projects were selected for a prize.

Congratulations to the 2025 winner of this award:

• Rithwik Rayani, Implantable Biocompatible Micro–LEDs for Multifunctional Optogenetic Neural Control and Brain Mapping

With the popularity of quantum well electro-absorption modulators (EAM) in photonic systems, we see increased interest and demand for MQW EAM TCAD simulations.
Crosslight MQW EAM TCAD offers advanced simulation capability based on physical models for free carrier, many-body, and exciton effects.
Exciton simulation is the most efficient approach and its results are close to the experimental absorption values.

With version 2025 of Crosslight TCAD, modeling of quantum well EAM will have more accurate models of the behavior of such systems.
The new models include a temperature-dependent scattering time as well as a temperature-dependent ratio between the bound exciton and
its free-carrier counterpart.

The new models are based on the following reference: “Thermodynamics of excitons in semiconductors,” James P. Wolfe, Phys. Today 35(3), 46 (1982); doi:10.1063/1.2914968

Customers of Crosslight TCAD simulating quantum EAM are invited to evaluate the latest versions.

Crosslight would like to announce an update to our current official release (v2024). In addition to multiple bug fixes, the following improvements were made:

• New regrid algorithms to improve smoothness of new mesh
• Updated change of variable method in the non-linear Newton solver for the Drift-Diffusion equations
• Improved support for large output files when simulating structures with many mesh points

Customers with an up-to-date maintenance contract may contact their local sales representatives to access this update.