Abstract

The saturation stage of stimulated orientational scattering (SOS) of light in thick planarly aligned nematic-liquid-crystal layers was observed and studied experimentally. The power efficiency of o-wave pump conversion exceeded 90%. Both saturation of transmitted pump power and cascading of SOS were observed. The latter indicated that, for higher than ∼50% conversion efficiencies, inverse conversion of the scattered e-polarized signal into wide-angle speckle, o-polarized background started to take place, leading to partial depletion of the primarily scattered e wave. Results were in good qualitative agreement with conventional SOS theory.

© 2001 Optical Society of America

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References

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  1. B. Ya. Zel’dovich and N. V. Tabiryan, “Induced light scattering in the mesophase of a nematic liquid crystal (NLC),” JETP Lett. 30, 478–482 (1979).
  2. B. Ya. Zel’dovich, S. K. Merzlikin, N. F. Pilipetskii, A. V. Sukhov, and N. V. Tabiryan, “Observation of orientational stimulated light scattering in the mesophase of a nematic liquid crystal,” Sov. Phys. Dokl. 28, 1038–1039 (1983).
  3. B. Ya. Zel’dovich, S. K. Merzlikin, N. F. Pilipetskii, and A. V. Sukhov, “Observation of stimulated forward orientational light scattering in a planar nematic liquid crystal,” JETP Lett. 41, 514–521 (1985).
  4. I. I. Goosev, B. Ya. Zel’dovich, V. A. Krivoschekov, and V. N. Sadovskii, “Steady-state stimulated scattering by a grating nonlinearity in a planar nematic liquid crystal,” JETP Lett. 55, 178–183 (1992).
  5. I. C. Khoo, Yu Liang, and H. Li, “Observation of stimulated orientational scattering and cross-polarized self-starting phase conjugation in a nematic liquid-crystal film,” Opt. Lett. 20, 130–132 (1995).
    [CrossRef] [PubMed]
  6. A. V. Sukhov and R. V. Timashev, “Grating orientational nonlinearity: utilization in optical feedback arrangements,” Mol. Cryst. Liq. Cryst. 222, 229–237 (1992).
    [CrossRef]
  7. N. V. Tabiryan, B. Ya. Zel’dovich, and A. V. Sukhov, “The orientational optical nonlinearity of liquid crystals,” Mol. Cryst. Liq. Cryst. 136, 1–140 (1986).
    [CrossRef]

1995 (1)

1992 (2)

A. V. Sukhov and R. V. Timashev, “Grating orientational nonlinearity: utilization in optical feedback arrangements,” Mol. Cryst. Liq. Cryst. 222, 229–237 (1992).
[CrossRef]

I. I. Goosev, B. Ya. Zel’dovich, V. A. Krivoschekov, and V. N. Sadovskii, “Steady-state stimulated scattering by a grating nonlinearity in a planar nematic liquid crystal,” JETP Lett. 55, 178–183 (1992).

1986 (1)

N. V. Tabiryan, B. Ya. Zel’dovich, and A. V. Sukhov, “The orientational optical nonlinearity of liquid crystals,” Mol. Cryst. Liq. Cryst. 136, 1–140 (1986).
[CrossRef]

1985 (1)

B. Ya. Zel’dovich, S. K. Merzlikin, N. F. Pilipetskii, and A. V. Sukhov, “Observation of stimulated forward orientational light scattering in a planar nematic liquid crystal,” JETP Lett. 41, 514–521 (1985).

1983 (1)

B. Ya. Zel’dovich, S. K. Merzlikin, N. F. Pilipetskii, A. V. Sukhov, and N. V. Tabiryan, “Observation of orientational stimulated light scattering in the mesophase of a nematic liquid crystal,” Sov. Phys. Dokl. 28, 1038–1039 (1983).

1979 (1)

B. Ya. Zel’dovich and N. V. Tabiryan, “Induced light scattering in the mesophase of a nematic liquid crystal (NLC),” JETP Lett. 30, 478–482 (1979).

Goosev, I. I.

I. I. Goosev, B. Ya. Zel’dovich, V. A. Krivoschekov, and V. N. Sadovskii, “Steady-state stimulated scattering by a grating nonlinearity in a planar nematic liquid crystal,” JETP Lett. 55, 178–183 (1992).

Khoo, I. C.

Krivoschekov, V. A.

I. I. Goosev, B. Ya. Zel’dovich, V. A. Krivoschekov, and V. N. Sadovskii, “Steady-state stimulated scattering by a grating nonlinearity in a planar nematic liquid crystal,” JETP Lett. 55, 178–183 (1992).

Li, H.

Liang, Yu

Merzlikin, S. K.

B. Ya. Zel’dovich, S. K. Merzlikin, N. F. Pilipetskii, and A. V. Sukhov, “Observation of stimulated forward orientational light scattering in a planar nematic liquid crystal,” JETP Lett. 41, 514–521 (1985).

B. Ya. Zel’dovich, S. K. Merzlikin, N. F. Pilipetskii, A. V. Sukhov, and N. V. Tabiryan, “Observation of orientational stimulated light scattering in the mesophase of a nematic liquid crystal,” Sov. Phys. Dokl. 28, 1038–1039 (1983).

Pilipetskii, N. F.

B. Ya. Zel’dovich, S. K. Merzlikin, N. F. Pilipetskii, and A. V. Sukhov, “Observation of stimulated forward orientational light scattering in a planar nematic liquid crystal,” JETP Lett. 41, 514–521 (1985).

B. Ya. Zel’dovich, S. K. Merzlikin, N. F. Pilipetskii, A. V. Sukhov, and N. V. Tabiryan, “Observation of orientational stimulated light scattering in the mesophase of a nematic liquid crystal,” Sov. Phys. Dokl. 28, 1038–1039 (1983).

Sadovskii, V. N.

I. I. Goosev, B. Ya. Zel’dovich, V. A. Krivoschekov, and V. N. Sadovskii, “Steady-state stimulated scattering by a grating nonlinearity in a planar nematic liquid crystal,” JETP Lett. 55, 178–183 (1992).

Sukhov, A. V.

A. V. Sukhov and R. V. Timashev, “Grating orientational nonlinearity: utilization in optical feedback arrangements,” Mol. Cryst. Liq. Cryst. 222, 229–237 (1992).
[CrossRef]

N. V. Tabiryan, B. Ya. Zel’dovich, and A. V. Sukhov, “The orientational optical nonlinearity of liquid crystals,” Mol. Cryst. Liq. Cryst. 136, 1–140 (1986).
[CrossRef]

B. Ya. Zel’dovich, S. K. Merzlikin, N. F. Pilipetskii, and A. V. Sukhov, “Observation of stimulated forward orientational light scattering in a planar nematic liquid crystal,” JETP Lett. 41, 514–521 (1985).

B. Ya. Zel’dovich, S. K. Merzlikin, N. F. Pilipetskii, A. V. Sukhov, and N. V. Tabiryan, “Observation of orientational stimulated light scattering in the mesophase of a nematic liquid crystal,” Sov. Phys. Dokl. 28, 1038–1039 (1983).

Tabiryan, N. V.

N. V. Tabiryan, B. Ya. Zel’dovich, and A. V. Sukhov, “The orientational optical nonlinearity of liquid crystals,” Mol. Cryst. Liq. Cryst. 136, 1–140 (1986).
[CrossRef]

B. Ya. Zel’dovich, S. K. Merzlikin, N. F. Pilipetskii, A. V. Sukhov, and N. V. Tabiryan, “Observation of orientational stimulated light scattering in the mesophase of a nematic liquid crystal,” Sov. Phys. Dokl. 28, 1038–1039 (1983).

B. Ya. Zel’dovich and N. V. Tabiryan, “Induced light scattering in the mesophase of a nematic liquid crystal (NLC),” JETP Lett. 30, 478–482 (1979).

Timashev, R. V.

A. V. Sukhov and R. V. Timashev, “Grating orientational nonlinearity: utilization in optical feedback arrangements,” Mol. Cryst. Liq. Cryst. 222, 229–237 (1992).
[CrossRef]

Zel’dovich, B. Ya.

I. I. Goosev, B. Ya. Zel’dovich, V. A. Krivoschekov, and V. N. Sadovskii, “Steady-state stimulated scattering by a grating nonlinearity in a planar nematic liquid crystal,” JETP Lett. 55, 178–183 (1992).

N. V. Tabiryan, B. Ya. Zel’dovich, and A. V. Sukhov, “The orientational optical nonlinearity of liquid crystals,” Mol. Cryst. Liq. Cryst. 136, 1–140 (1986).
[CrossRef]

B. Ya. Zel’dovich, S. K. Merzlikin, N. F. Pilipetskii, and A. V. Sukhov, “Observation of stimulated forward orientational light scattering in a planar nematic liquid crystal,” JETP Lett. 41, 514–521 (1985).

B. Ya. Zel’dovich, S. K. Merzlikin, N. F. Pilipetskii, A. V. Sukhov, and N. V. Tabiryan, “Observation of orientational stimulated light scattering in the mesophase of a nematic liquid crystal,” Sov. Phys. Dokl. 28, 1038–1039 (1983).

B. Ya. Zel’dovich and N. V. Tabiryan, “Induced light scattering in the mesophase of a nematic liquid crystal (NLC),” JETP Lett. 30, 478–482 (1979).

JETP Lett. (3)

B. Ya. Zel’dovich and N. V. Tabiryan, “Induced light scattering in the mesophase of a nematic liquid crystal (NLC),” JETP Lett. 30, 478–482 (1979).

B. Ya. Zel’dovich, S. K. Merzlikin, N. F. Pilipetskii, and A. V. Sukhov, “Observation of stimulated forward orientational light scattering in a planar nematic liquid crystal,” JETP Lett. 41, 514–521 (1985).

I. I. Goosev, B. Ya. Zel’dovich, V. A. Krivoschekov, and V. N. Sadovskii, “Steady-state stimulated scattering by a grating nonlinearity in a planar nematic liquid crystal,” JETP Lett. 55, 178–183 (1992).

Mol. Cryst. Liq. Cryst. (2)

A. V. Sukhov and R. V. Timashev, “Grating orientational nonlinearity: utilization in optical feedback arrangements,” Mol. Cryst. Liq. Cryst. 222, 229–237 (1992).
[CrossRef]

N. V. Tabiryan, B. Ya. Zel’dovich, and A. V. Sukhov, “The orientational optical nonlinearity of liquid crystals,” Mol. Cryst. Liq. Cryst. 136, 1–140 (1986).
[CrossRef]

Opt. Lett. (1)

Sov. Phys. Dokl. (1)

B. Ya. Zel’dovich, S. K. Merzlikin, N. F. Pilipetskii, A. V. Sukhov, and N. V. Tabiryan, “Observation of orientational stimulated light scattering in the mesophase of a nematic liquid crystal,” Sov. Phys. Dokl. 28, 1038–1039 (1983).

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Figures (7)

Fig. 1
Fig. 1

Experimental setup: λ/2, half-wave plate; P1, polarizer; L, focusing lens; LC, NLC cell; PBS, polarizing beam splitter; PD1, PD2, photodetectors.

Fig. 2
Fig. 2

The dependence of the scattered e-wave power on the pump power; (a) L=180 µm, (b) L=250 µm, (c) L=750 µm.

Fig. 3
Fig. 3

Dependence of the SOS exponential gain on the pump power: (a) L=180 µm, (b) L=250 µm, (c) L=750 µm.

Fig. 4
Fig. 4

Dependence of the total power of the transmitted o wave on the pump power: (a) L=250 µm, (b) L=750 µm.

Fig. 5
Fig. 5

Dependence of the kernel power of the transmitted o wave on the pump power for the NLC thickness L=750 µm.

Fig. 6
Fig. 6

Dependence of the reverse (cascaded) SOS exponential gain on the power of the e-polarized primary scattered wave for the NLC thickness L=750 µm.

Fig. 7
Fig. 7

Dependence of the kernel power of the transmitted o wave on the pump power for the NLC thickness L=950 µm.

Equations (2)

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WSWP exp(GLWP/S).
(WT-WK)WS exp(GLWS/S).

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