Figure 2.

Simultaneous absorption and emission measurements on single conjugated polymers embedded in PMMA in near-critical xenon. (a) Photothermal image of single conjugated MEH-PPV molecules; (b) confocal fluorescence image of the area in panel a, recorded simultaneously. The pressure and temperature of the sample cell were 6.26 MPa and 288 K, respectively. (c) Correlated scatter plot of fluorescence and photothermal signals. (d, e) Histograms of the photothermal signal and the fluorescence signal, respectively.