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Temporal evolution of emission spectra of a microdisk laser upon exposure to saturated toluene vapor in . The disk diameter is about . The incident pump pulse energy is fixed at . At , saturated vapor is introduced into the sample cell. At , the vapor is switched to pure . The time interval is shown in units of minutes.
Wavelength shift of the lasing mode (marked by the arrow in Fig. 1) as a function of increasing percentages of saturated toluene vapor. The straight line represents a linear fit.
Wavelength shift of the lasing mode (marked by the arrow in Fig. 1) vs time. The toluene concentrations are 50% saturated vapor in (squares) and 100% (triangles). The surface density of toluene molecules, calculated from the wavelength shift, is also presented on a second axis.
Temporal change of the wavelength of a lasing mode and the corresponding surface density of nitrobenzene molecules upon exposure to 50% saturated nitrobenzene vapor in .
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