We recently reported our experimental findings on the use of a passive Kerr-like nonlinear optical response, namely, reorientational self-focusing and spatial soliton generation, in conjunction with optically pumped random lasing in nematic liquid crystals (E7) doped with Pyrromethene dye (PM597).1 In Ref. 1, for the emission spectra at pump energies of 0.75μJ/pulse (below threshold), we mistakenly used the wrong data and curves in Fig. 4(a). The amended figure (to replace Fig. 4 in Ref. 1) is presented here. This correction does not affect the discussion of the results and the conclusions presented in the article.

FIG. 1.

Soliton effects on spectral emission, for a pump orthogonal to the optic axis. (a) Emission spectrum with pump energy below threshold (0.75μJ), without (black) and with a 5 mW soliton (red). (b) Spectrum with pump energy above threshold (1.2μJ), without (black) and with (red) a 5 mW nematicon: the latter shifts the wavelength peak and narrows the spectrum. (c) Emission spectra for a pump at 1.2μJ and various nematicon powers. (d) Tuning of lasing efficiency (output intensity, squares) and spectral width (FWHM, circles) versus nematicon power, for a pump at 1.2μJ.

FIG. 1.

Soliton effects on spectral emission, for a pump orthogonal to the optic axis. (a) Emission spectrum with pump energy below threshold (0.75μJ), without (black) and with a 5 mW soliton (red). (b) Spectrum with pump energy above threshold (1.2μJ), without (black) and with (red) a 5 mW nematicon: the latter shifts the wavelength peak and narrows the spectrum. (c) Emission spectra for a pump at 1.2μJ and various nematicon powers. (d) Tuning of lasing efficiency (output intensity, squares) and spectral width (FWHM, circles) versus nematicon power, for a pump at 1.2μJ.

Close modal
1.
S.
Perumbilavil
,
A.
Piccardi
,
O.
Buchnev
,
M.
Kauranen
,
G.
Strangi
, and
G.
Assanto
,
Appl. Phys. Lett.
109
,
161105
(
2016
).