• A new optional module that implements a small-signal Photon-Photon resonance model for edge-emitting DFB/DBR lasers.
• A new model for single-photon avalanche photodetectors.
• A new method of transient simulation, using relative time periods for each individual scan command.
  This is helpful when dealing with intervals that vary significantly between scans.
• A new decoupled split-step thermal model, which can help with convergence at the cost of a small loss of self-consistency.
• A revised exciton model.
• A new mesh generator interface and improved regridding methods.
• A triplet-triplet fusion model for OLEDs.
• Improved PCSEL models to compute the coupling coefficients of a unit cell.
• An optional speed-up to microcavity simulations, by limiting printing of diagnostic data.

Customers with an up-to-date maintenance contract will be issued this update in the next few days.

Interested users should contact Crosslight for a demo.

Users of Crosslight with such a need can contact Crosslight for v25 beta.

To avoid the possible frustration caused by divergence due to thermal coupling, it is desirable to have the option of
decoupling the thermal and electrical simulations without too much of a loss in accuracy. As shown in this example, the split step causes some minor noise in the simulation IV/LI curves without altering the general behavior.

Users affected by thermal divergence problems are encouranged to contact Crosslight for the 2025 beta version.

Congratulations to the 2025 winner of this award:

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