Semiconductor multiphysics

Simulate any semiconductor device. Born from VCSELs.

Po.Li.Te couples transport, optical and thermal solvers in Flow, a node-based workflow where you decide what runs one way and what converges self-consistently. Local by default, so your IP stays yours.

Runs on your machineOptional EU cloudLocal AI agent
Transportdrift-diffusion OpticalCMT · FEM · FDTD · rays ThermalFEM heat transfer External tool Local AI agent builds and runs the flow one-way self-consistent self-consistent
20+
years of VCSEL modeling research
9
peer-reviewed publications since 2020
4
optical solvers: CMT, FEM, FDTD, ray tracing
100%
local by default, EU cloud if you prefer
The platform

Three physics. One platform.

Every solver is ready and validated. Use one on its own, or couple them in Flow.

T

Transport

Drift-diffusion carrier transport: currents, carrier densities and electrical characteristics, validated on photodetectors, CMOS and diodes, and used in VCSELs.

Drift-diffusionHeterostructuresDoping and contacts
O

Optical

Four solvers behind one interface: full-vector 3D coupled mode theory born from our VCSEL research, a FEM modal solver, FDTD for full-wave time domain, and ray tracing.

CMTFEM modesFDTDRay tracing
Th

Thermal

FEM heat transfer for self-heating, temperature maps and thermal lensing, with temperature fed back to the optical and transport physics.

FEM heatSelf-heatingThermal lensing

See the solvers

Flow

Wire the physics together.

Drop solvers on a canvas and connect them. A single arrow passes results one way. A double arrow iterates two solvers until they agree. Mix both in the same graph.

Example: a VCSEL

Optical→Thermal

Optical then thermal, one pass.

Optical→Thermal→Transport

All three in series.

Optical⇄Thermal⇄Transport

All three fully self-consistent.

Slot: Flow screenshot, graph canvas with a VCSEL flow (16:10)
Slot: Flow agent mode, screenshot or short video (16:10)
Agentic mode

Describe the study. Flow does the plumbing.

An AI agent inside Flow turns your intent into a working simulation.

  • Suggests how to set up the simulations for your device.
  • Writes the connections, the flow and every input file.
  • Runs the simulations and keeps track of what is happening.
  • Runs on a compact language model and a standard consumer graphics card. Nothing leaves your machine.
IP first

Your designs never have to leave your hands.

Semiconductor IP is your most valuable asset. Po.Li.Te runs where you decide.

On your machine

The default. Solvers, Flow and the AI agent all run locally, even offline. Your structures and results stay on your hardware.

EU cloud, managed by us

Prefer not to install anything? We host Po.Li.Te for you in the European Union and give you access from anywhere.

Open to your tools

Flow can include external tools as nodes in the same graph, so Po.Li.Te fits the workflow you already have.

Where it applies

From the VCSEL to almost any semiconductor device.

The same physics that made us trusted on VCSELs now covers most of the semiconductor world.

Flagship

VCSELs and lasers

Modes, polarization, beam quality, thermal rollover and carrier effects in one workflow.

Validated

Photodetectors

Carrier transport and optical absorption, from the same structure file.

Validated

Power and CMOS

Transport plus self-heating for CMOS, diodes and power devices.

Available

Integrated photonics

FEM modes and FDTD for resonators, waveguides and active structures.

Emerging

Quantum and cryogenic

Low-temperature transport and thermal problems for quantum technologies.

Custom

Your device

Not on the list? Our engineers build the workflow with you.

See the full application matrix

Grounded in research

Built on peer-reviewed physics.

The engine descends from the team’s own published work, presented at IEEE conferences and reviewed by leading photonics journals.

Selected publications

“Design and modeling of asymmetric bow-tie VCSELs for 100 GHz and beyond,” Optics Express 34 (2026)

“Elliptically polarized light obtained from tilted high-contrast grating VCSELs,” Optics Letters 51 (2026)

“Transverse Coupled Cavity VCSELs: Bridging Ultrabroadband Dynamics to Optical Supermodes,” IEEE Photonics Journal 16 (2024)

See it on your own device.

Book a free demo. We walk through Flow with your team and set you up with a 14-day free trial.