Figure 4
From: Structural and optical properties of Nd:YAB-nanoparticle-doped PDMS elastomers for random lasers
(a) The spectroscopic response intensity of the PC0.2 device for different strain values up to 260% with 532 nm laser excitation. Each point in Figure is an average of the peak spectral power density over different strain values. Lasing ceases for strain values above ~ 60% and only amplified spontaneous emission (ASE) can be observed instead, with one new peak appearing at 886 nm, (b) spectroscopic response intensity of the PC0.4 RL device for different strains up to 230%, (c) RL emission of PC1.0 by applying a maximum strain of 100% for several cycles, (d) the PC1.0 RL emission as a function of time of continuous operation, the inset shows the intensity and linewidth (FWHM) of the lasing emission as a function of time of continuous operation.
