Drag to orbit · scroll to zoom. Photons enter the tissue slab from the top, attenuate with depth, excite photosensitizer, and hand off energy to dissolved oxygen.
Ground-state photosensitizer
Excited triplet photosensitizer
³O₂ ground-state oxygen
¹O₂ singlet oxygen
Damaged biomolecule
WebGL · Three.js r128 Tissue depth axis: top = surface