Interactive Tools
Fundamental Calculations & Descriptions of Light and Matter Interactions
Interactive simulators and explanatory resources covering core principles in photopolymerization, light attenuation, and photoexcited state dynamics.
DLP Simulator
Cure Depth Calculator
Simulates photopolymer curing in DLP systems using the Beer–Lambert law and
Jacobs Working Curve. Adjust irradiance, exposure time, photoabsorber
concentration, and oxygen inhibition to compute cure depth and intensity profiles.
Monochromatic
Simple Light Attenuation (Single Absorber)
Explores how light intensity decreases with depth in a photosensitive medium for a
single monochromatic wavelength. Models absorptivity, half-life depth, and
attenuation using default parameters for TPO at 405 nm.
Polychromatic
Light Attenuation — Multiple Wavelengths
Extends the single-absorber model to polychromatic light sources with
wavelength-dependent absorption. Useful for modeling real photoinitiator systems
under broadened or multi-line light sources.
Broadband Source
Light Attenuation — Broadband Source
Models attenuation from real-world broadband light sources with wide spectral
distributions. Demonstrates how different spectral bands contribute to the overall
depth of penetration in photoreactive media.
Video Explanation
Jablonski Diagram Explanation
A screencast walkthrough of Jablonski energy-level diagrams — absorption,
fluorescence, phosphorescence, intersystem crossing, and their relevance to
photoinitiator photophysics and photopolymerization.
Interactive Code
Jablonski Diagram Calculations
Interactive numerical calculations for photoexcited state dynamics — rate constants,
quantum yields, singlet/triplet state lifetimes, and energy transfer efficiencies
based on Jablonski diagram parameters.