Abstract

Using an iodine-vapor cell and a single-mode argon–ion laser, we have constructed a spectrometer for low-shifted light scattering, which has resolution better than 0.3 GHz (0.01 cm−1). A method has been proposed to deconvolute the spectra.

© 1975 Optical Society of America

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References

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  1. G. R. Hanes and C. E. Dahlstrom, Appl. Phys. Lett. 14, 11 (1969).
    [Crossref]
  2. Herman Z. Cummin and Robert W. Gammon, J. Chem. Phys. 44, 2785 (1966).
    [Crossref]
  3. R. D. Mountain, J. Res. Natl. Bur. Std. A70, 207 (1966).

1969 (1)

G. R. Hanes and C. E. Dahlstrom, Appl. Phys. Lett. 14, 11 (1969).
[Crossref]

1966 (2)

Herman Z. Cummin and Robert W. Gammon, J. Chem. Phys. 44, 2785 (1966).
[Crossref]

R. D. Mountain, J. Res. Natl. Bur. Std. A70, 207 (1966).

Cummin, Herman Z.

Herman Z. Cummin and Robert W. Gammon, J. Chem. Phys. 44, 2785 (1966).
[Crossref]

Dahlstrom, C. E.

G. R. Hanes and C. E. Dahlstrom, Appl. Phys. Lett. 14, 11 (1969).
[Crossref]

Gammon, Robert W.

Herman Z. Cummin and Robert W. Gammon, J. Chem. Phys. 44, 2785 (1966).
[Crossref]

Hanes, G. R.

G. R. Hanes and C. E. Dahlstrom, Appl. Phys. Lett. 14, 11 (1969).
[Crossref]

Mountain, R. D.

R. D. Mountain, J. Res. Natl. Bur. Std. A70, 207 (1966).

Appl. Phys. Lett. (1)

G. R. Hanes and C. E. Dahlstrom, Appl. Phys. Lett. 14, 11 (1969).
[Crossref]

J. Chem. Phys. (1)

Herman Z. Cummin and Robert W. Gammon, J. Chem. Phys. 44, 2785 (1966).
[Crossref]

J. Res. Natl. Bur. Std. (1)

R. D. Mountain, J. Res. Natl. Bur. Std. A70, 207 (1966).

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Figures (6)

FIG. 1
FIG. 1

Intensity of single mode of argon laser (5145 Å vs frequency.

FIG. 2
FIG. 2

Schematic diagram of the apparatus.

FIG. 3
FIG. 3

Iodine absorption peaking at 5145.42 Å. Tick marks are separated by 0.13 GHz.

FIG. 4
FIG. 4

Relation between real and observed half-width and frequency shift of the phonon with iodine absorption. Γ0 is the observed half-width and νop is the observed peak position. ΓPh and νPh are the real half-width and frequency, respectively.

FIG. 5
FIG. 5

Observed Brillouin spectra with iodine filter for various liquids. Intensities in various spectra are not to be compared.

FIG. 6
FIG. 6

Deconvolved Brillouin spectra of CCl4, C6H6, C2H5OH, and CH3OH. The relative scattering efficiencies of various liquids are not to be compared.

Tables (1)

Tables Icon

TABLE I Results of the Brilloulti scattering (iodine half-width = 0.85 GHz).

Equations (3)

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A ( ν ) = x 0 ν 0 2 Γ | ν | ( ν 0 2 ν ) 2 + Γ 2 ν 2 n ( ν ) ,
n ( ν ) = 1 | 1 exp ( h ν / k T ) |
f ( x ) = A ( x x ) G ( x ) d x ,