Abstract

This erratum amends some errors in Opt. Lett. 43, 2296 (2018) [CrossRef]  .

© 2019 Optical Society of America

We recently reported on controlling optical spatial solitons in nematic liquid crystals through changes of the sample temperature in Ref. [1]. In particular, we demonstrated that both trajectory and confinement of the self-induced waveguides can be altered by exploiting the thermo-optic dependence of the refractive indices and the mechanical constants. After publication, we have noticed misprints in the expression Eq. (3) detailing the walk-off dependence on the refractive indices of the material. The correct formula is (see, e.g., Ref. [2])

δ(T)=arctan[ϵa(T)sin2θ(T)ϵa(T)+2n2(T)+ϵa(T)cos2θ(T)].
In addition, the vertical axes of the photographs in Figs. 1–4 were affected by a scaling error. Here, we provide revised versions of the figures with amended y-axes. Figures 14 replace Figs. 1–4 of the previous article in print Ref. [1], respectively.

 

Fig. 1. Amended version of Fig. 1 in Ref. [1]. (a) Sample geometry. (b) Acquired images of an ordinary wave (TM, top panel) and two extraordinary wave (TE) beams, featuring either linear diffraction at low power (middle panel) or self-confinement at high power (bottom panel), respectively. (c) Ordinary and extraordinary (θ=0deg) refractive indices for the NLC mixture E7, Δn0.2. Inset: walk-off angle at room temperature versus θ0. (d) Walk-off sensitivity to temperature for various θ0.

Download Full Size | PPT Slide | PDF

 

Fig. 2. Amended version of Fig. 2 in Ref. [1]. Temperature controlled nematicon trajectory. (a)–(c) Acquired images of nematicon evolution at three temperatures for P=2mW. (d) Calculated and measured temperature dependence of the beam walk-off.

Download Full Size | PPT Slide | PDF

 

Fig. 3. Amended version of Fig. 3 in Ref. [1]. (a) Nematicon trajectories in yz for various input beam powers and fixed temperatures, as indicated. (b) Nematicon trajectories in yz for various temperatures and fixed input beam powers, as indicated.

Download Full Size | PPT Slide | PDF

 

Fig. 4. Amended version of Fig. 4 in Ref. [1]. Temperature controlled nonlinearity. (a)–(c) Acquired images of nematicon evolution at three temperatures (as marked) and P=4.0mW. (d) Comparison between the nonlinear coefficient n2 (black solid line) and the measured breathing period for input powers P=3.0 (triangles), 4.0 (circles), and 5.0 mW (squares). As expected, they have opposite trends.

Download Full Size | PPT Slide | PDF

Please note that the captions of all figures are the same as in Ref. [1]. While we apologize for the regrettable oversights, we stress that the error affected only the picture scaling, whereas the graphs Figs. 2(d) and 4(d) did show the correct values. Thus, the indicated scaling changes do not influence either the interpretation of the reported phenomena or the scientific conclusions of the article.

REFERENCES

1. U. Laudyn, A. Piccardi, M. Kwasny, M. A. Karpierz, and G. Assanto, Opt. Lett. 43, 2296 (2018). [CrossRef]  

2. K. F. Kulme, Rep. Prog. Phys. 36, 497 (1973). [CrossRef]  

References

  • View by:
  • |
  • |
  • |

  1. U. Laudyn, A. Piccardi, M. Kwasny, M. A. Karpierz, and G. Assanto, Opt. Lett. 43, 2296 (2018).
    [Crossref]
  2. K. F. Kulme, Rep. Prog. Phys. 36, 497 (1973).
    [Crossref]

2018 (1)

1973 (1)

K. F. Kulme, Rep. Prog. Phys. 36, 497 (1973).
[Crossref]

Opt. Lett. (1)

Rep. Prog. Phys. (1)

K. F. Kulme, Rep. Prog. Phys. 36, 497 (1973).
[Crossref]

Cited By

OSA participates in Crossref's Cited-By Linking service. Citing articles from OSA journals and other participating publishers are listed here.

Alert me when this article is cited.


Figures (4)

Fig. 1.
Fig. 1. Amended version of Fig. 1 in Ref. [1]. (a) Sample geometry. (b) Acquired images of an ordinary wave (TM, top panel) and two extraordinary wave (TE) beams, featuring either linear diffraction at low power (middle panel) or self-confinement at high power (bottom panel), respectively. (c) Ordinary and extraordinary ( θ = 0 deg ) refractive indices for the NLC mixture E7, Δ n 0.2 . Inset: walk-off angle at room temperature versus θ 0 . (d) Walk-off sensitivity to temperature for various θ 0 .
Fig. 2.
Fig. 2. Amended version of Fig. 2 in Ref. [1]. Temperature controlled nematicon trajectory. (a)–(c) Acquired images of nematicon evolution at three temperatures for P = 2 mW . (d) Calculated and measured temperature dependence of the beam walk-off.
Fig. 3.
Fig. 3. Amended version of Fig. 3 in Ref. [1]. (a) Nematicon trajectories in y z for various input beam powers and fixed temperatures, as indicated. (b) Nematicon trajectories in y z for various temperatures and fixed input beam powers, as indicated.
Fig. 4.
Fig. 4. Amended version of Fig. 4 in Ref. [1]. Temperature controlled nonlinearity. (a)–(c) Acquired images of nematicon evolution at three temperatures (as marked) and P = 4.0 mW . (d) Comparison between the nonlinear coefficient n 2 (black solid line) and the measured breathing period for input powers P = 3.0 (triangles), 4.0 (circles), and 5.0 mW (squares). As expected, they have opposite trends.

Equations (1)

Equations on this page are rendered with MathJax. Learn more.

δ ( T ) = arctan [ ϵ a ( T ) sin 2 θ ( T ) ϵ a ( T ) + 2 n 2 ( T ) + ϵ a ( T ) cos 2 θ ( T ) ] .

Metrics