Home▸Chemistry & Materials▸Femtochemistry: Pump–Probe Molecular Dynamics Simulator

Femtochemistry Pump–Probe Simulator

Pump-probe femtosecond spectroscopy simulator: a diatomic molecule is kicked onto a dissociative excited-state curve, vibrates coherently, then breaks apart at a curve-crossing. Scrub the probe delay to sample the interatomic distance at any femtosecond.

Chemistry & Materials3DModerate60 FPS

Details

CategoryChemistry & Materials

RenderingThree.js · WebGL

DifficultyModerate

Target FPS60

ControlsProbe delay slider (0-1800 fs) scrubs through the precomputed reaction trajectory and updates the 3D molecule, HUD readout and signal plot; pump pulse energy slider (1.0-3.0 eV) sets vibrational amplitude and how many oscillation periods occur before the curve-crossing dissociation event; Play animates the full pump-probe sweep in real time and progressively draws the transient signal curve; Reset returns the delay to zero.

Three.jsFemtochemistryPump-Probe SpectroscopyMolecular DynamicsPhotodissociation

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⚙ Under the hood

Pump-probe femtosecond spectroscopy simulator: a diatomic molecule is promoted onto a dissociative excited-state curve, vibrates coherently, then breaks apart at a curve-crossing. Scrub the probe delay (0-1800 fs) to sample the interatomic distance at any instant and reconstruct the transient signal curve frame by frame.

Three.jsFemtochemistryPump-Probe SpectroscopyMolecular DynamicsPhotodissociation

3D · Three.js / WebGL renderer · 60 FPS target · runs fully client-side, no install