Figure 3 | Scientific Reports

Figure 3

From: Controlling the emission properties of solution-processed organic distributed feedback lasers through resonator design

Figure 3

Example of laser characterization of a DFB laser. Properties of a device with grating modulation d = 260 nm and residual layer s = 110 nm. (a) Spectrum; the inset shows the corresponding image of the emitted light. (b) Linewidth, defined as full width at half maximum (FWHM), vs. the pump pulse energy, for laser threshold determination. (c) Output energy vs. pump energy, for laser efficiency (LSE) determination.

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