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Transmissivity spectra of rhodamine-6G-doped multilayers. Numbers attached to the curves denote those of stacked layers.
Observed spectrum of a surface-emitting DFB dye laser of a 39-layer-stacked multilayer for a pump energy of .
Emission spectra around the lasing threshold.
Emission intensity and full width at half maximum (FWHM) of emitted spectra as a function of pump energy.
Wavelength tuning of a surface-emitting DFB dye laser for change of the pumping position. The emitted wavelength ranges from .
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