Abstract

The formation of electrostrictive gratings during laser-induced grating (LIG) experiments is considered in an electromagnetic rather than an electrostatic approach. A different form of the relation that was used previously for the electrostrictive pressure was achieved. The theoretical findings were experimentally verified by polarization-dependent LIG spectroscopy measurements of a mixture of nitrogen with methanol vapor at high pressure with 1064-nm radiation. Conditions for suppressing the contribution of the electrostrictive grating relative to that of the simultaneously generated thermal grating signals were found theoretically and experimentally. The technique can potentially increase detection sensitivity for population gratings in high-density gas mixtures.

© 1999 Optical Society of America

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References

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  1. H. J. Eichler, P. Günter, and D. W. Pohl, Laser-Induced Dynamic Gratings, Vol. 11 of Springer Series in Optical Sciences (Springer-Verlag, Berlin, 1985).
  2. E. B. Cummings, I. A. Leyva, and H. G. Hornung, Appl. Opt. 34, 3290 (1995).
    [CrossRef] [PubMed]
  3. W. Hubschmid, B. Hemmerling, and A. Stampanoni-Panariello, J. Opt. Soc. Am. B 12, 1850 (1995).
    [CrossRef]
  4. P. H. Paul, R. L. Farrow, and P. M. Danehy, J. Opt. Soc. Am. B 12, 384 (1995).
    [CrossRef]
  5. D. J. McGraw and J. M. Harris, Phys. Rev. 34, 4829 (1986).
    [CrossRef]
  6. A. Stampanoni-Panariello, B. Hemmerling, and W. Hubschmid, Phys. Rev. A 51, 655 (1995).
    [CrossRef] [PubMed]
  7. R. W. Boyd, Nonlinear Optics (Academic, San Diego, Calif., 1992).

1995 (4)

1986 (1)

D. J. McGraw and J. M. Harris, Phys. Rev. 34, 4829 (1986).
[CrossRef]

Boyd, R. W.

R. W. Boyd, Nonlinear Optics (Academic, San Diego, Calif., 1992).

Cummings, E. B.

Danehy, P. M.

Eichler, H. J.

H. J. Eichler, P. Günter, and D. W. Pohl, Laser-Induced Dynamic Gratings, Vol. 11 of Springer Series in Optical Sciences (Springer-Verlag, Berlin, 1985).

Farrow, R. L.

Günter, P.

H. J. Eichler, P. Günter, and D. W. Pohl, Laser-Induced Dynamic Gratings, Vol. 11 of Springer Series in Optical Sciences (Springer-Verlag, Berlin, 1985).

Harris, J. M.

D. J. McGraw and J. M. Harris, Phys. Rev. 34, 4829 (1986).
[CrossRef]

Hemmerling, B.

A. Stampanoni-Panariello, B. Hemmerling, and W. Hubschmid, Phys. Rev. A 51, 655 (1995).
[CrossRef] [PubMed]

W. Hubschmid, B. Hemmerling, and A. Stampanoni-Panariello, J. Opt. Soc. Am. B 12, 1850 (1995).
[CrossRef]

Hornung, H. G.

Hubschmid, W.

W. Hubschmid, B. Hemmerling, and A. Stampanoni-Panariello, J. Opt. Soc. Am. B 12, 1850 (1995).
[CrossRef]

A. Stampanoni-Panariello, B. Hemmerling, and W. Hubschmid, Phys. Rev. A 51, 655 (1995).
[CrossRef] [PubMed]

Leyva, I. A.

McGraw, D. J.

D. J. McGraw and J. M. Harris, Phys. Rev. 34, 4829 (1986).
[CrossRef]

Paul, P. H.

Pohl, D. W.

H. J. Eichler, P. Günter, and D. W. Pohl, Laser-Induced Dynamic Gratings, Vol. 11 of Springer Series in Optical Sciences (Springer-Verlag, Berlin, 1985).

Stampanoni-Panariello, A.

W. Hubschmid, B. Hemmerling, and A. Stampanoni-Panariello, J. Opt. Soc. Am. B 12, 1850 (1995).
[CrossRef]

A. Stampanoni-Panariello, B. Hemmerling, and W. Hubschmid, Phys. Rev. A 51, 655 (1995).
[CrossRef] [PubMed]

Appl. Opt. (1)

J. Opt. Soc. Am. B (2)

Phys. Rev. (1)

D. J. McGraw and J. M. Harris, Phys. Rev. 34, 4829 (1986).
[CrossRef]

Phys. Rev. A (1)

A. Stampanoni-Panariello, B. Hemmerling, and W. Hubschmid, Phys. Rev. A 51, 655 (1995).
[CrossRef] [PubMed]

Other (2)

R. W. Boyd, Nonlinear Optics (Academic, San Diego, Calif., 1992).

H. J. Eichler, P. Günter, and D. W. Pohl, Laser-Induced Dynamic Gratings, Vol. 11 of Springer Series in Optical Sciences (Springer-Verlag, Berlin, 1985).

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Figures (2)

Fig. 1
Fig. 1

Schematic of the experimental setup: 1, Nd:YAG laser; 2, Ar+ laser; 3, λ/2 plate; 4, demagnifying telescope; 5, high-pressure cell; 6, aperture; 7, photomultiplier; 8, digital storage oscilloscope; BS, 50% beam splitter.

Fig. 2
Fig. 2

Traces of LIGS signals for several angles between the plane of polarization of the pump beam and the vector of the induced dynamic grating. The number of degrees in the angle is given at the left for each curve.

Equations (7)

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F=-U1/20χE2,
p=αE.
F=F+q+F-q=-Er0q+Er0+lq=pEr0.
F=αEE.
FP=1/20χE2-0χEE=0χEE=-iωμ0χEH.
E=E0 cosωt+k1r+E0 cosωt+k2r=2Et cosqr/2,
Fsum=1/20χEt sinq2r2-0χEt sinq2rEt sinq2r=1/20χEt2 sinqrq-0χEt sinq2rEtq2cosq2r=1/20χsinqrEt2q-EtqEtsinΘ.

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