Time-Dependent Results

• 0.001AU 1,3-butadiene in Ar excited at 1039.36 cm-1 with 1 mJ, 120 ns CO2 laser pulse focused to ~0.1 mm (w).

• Signal contrast is ~10

• Signal improvement is 10,000 relative to transmission spectrophotometry

• Analysis shows signal-decay ?(1+2t/tc)-1

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