Abstract

Measurements of emission and absorption spectra and relative quantum yield of luminescence of sodium salicylate have been carried out in the wavelength range between 1750 Å and 5000 Å at room temperature and at 80°K for different thickness samples. Among effects noted are an increase in total emission intensity of approximately 25% on cooling, a rather deep absorption hole at 2700 Å, and pronounced decreases in the relative quantum yield at 2700 Å and at 2000 Å.

© 1964 Optical Society of America

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References

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  1. G. Dejardin, R. Schwegler, Rev. opt. 13, 313 (1934).
  2. F. S. Johnson, K. Watanabe, R. Tousey, J. Opt. Soc. Am. 41, 702 (1951).
    [Crossref]
  3. K. Watanabe, C. Y. Inn, J. Opt. Soc. Am. 43, 32 (1953).
    [Crossref]
  4. J. F. Hamann, Z. Physik 10, 187 (1958).
  5. R. A. Knapp, Appl. Opt. 2, 1334 (1963).
    [Crossref]
  6. N. Kristianpoller, D. B. Dutton, Appl. Opt. 3, 287 (1964).
    [Crossref]
  7. A. M. Smith, thesis, University of Rochester, 1961.
  8. J. E. Eby, K. J. Teegarden, D. B. Dutton, Phys. Rev. 116, 1099 (1959).
    [Crossref]

1964 (1)

1963 (1)

1959 (1)

J. E. Eby, K. J. Teegarden, D. B. Dutton, Phys. Rev. 116, 1099 (1959).
[Crossref]

1958 (1)

J. F. Hamann, Z. Physik 10, 187 (1958).

1953 (1)

1951 (1)

1934 (1)

G. Dejardin, R. Schwegler, Rev. opt. 13, 313 (1934).

Dejardin, G.

G. Dejardin, R. Schwegler, Rev. opt. 13, 313 (1934).

Dutton, D. B.

N. Kristianpoller, D. B. Dutton, Appl. Opt. 3, 287 (1964).
[Crossref]

J. E. Eby, K. J. Teegarden, D. B. Dutton, Phys. Rev. 116, 1099 (1959).
[Crossref]

Eby, J. E.

J. E. Eby, K. J. Teegarden, D. B. Dutton, Phys. Rev. 116, 1099 (1959).
[Crossref]

Hamann, J. F.

J. F. Hamann, Z. Physik 10, 187 (1958).

Inn, C. Y.

Johnson, F. S.

Knapp, R. A.

Kristianpoller, N.

Schwegler, R.

G. Dejardin, R. Schwegler, Rev. opt. 13, 313 (1934).

Smith, A. M.

A. M. Smith, thesis, University of Rochester, 1961.

Teegarden, K. J.

J. E. Eby, K. J. Teegarden, D. B. Dutton, Phys. Rev. 116, 1099 (1959).
[Crossref]

Tousey, R.

Watanabe, K.

Appl. Opt. (2)

J. Opt. Soc. Am. (2)

Phys. Rev. (1)

J. E. Eby, K. J. Teegarden, D. B. Dutton, Phys. Rev. 116, 1099 (1959).
[Crossref]

Rev. opt. (1)

G. Dejardin, R. Schwegler, Rev. opt. 13, 313 (1934).

Z. Physik (1)

J. F. Hamann, Z. Physik 10, 187 (1958).

Other (1)

A. M. Smith, thesis, University of Rochester, 1961.

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Figures (6)

Fig. 1
Fig. 1

(a)Schematic diagram of the arrangement for measuring excitation spectra in the nonvacuum uv. L is the light source, C is a 13-cps chopper, B & L is a Bausch & Lomb grating monochromator, NS is the entrance slit, XS is the exit slit, M is a concave mirror (10-cm. F.L.), S is a phosphor sample, shown in “position A” (see text), PM is the photomultiplier detector of the luminescence, T is a radiation thermocouple, and F is a filter. (b) Schematic diagram of the arrangement for measuring excitation spectra in the vacuum uv. L is the light source, M is a vacuum monochromator, G is a grating, C is a 13-cps chopper, S is a phosphor sample, P is a Pyrex light pipe, PM is a photomultiplier, and T is a radiation thermocouple.

Fig. 2
Fig. 2

Emission spectra of sodium salicylate at room temperature (a) and at 80°K (b). (Excitation–Hg 2537 Å).

Fig. 3
Fig. 3

Relative quantum yield of three sodium salicylate samples as measured with the apparatus illustrated in Fig. 1(a). Sample 1: t ≃ 1.3 mg/cm2; sample 2: t ≃ 1.6 mg/cm2; sample 3: t ≃ 0.2 mg/cm.2

Fig. 4
Fig. 4

Absorption spectrum of a thin (t ≃ 0.2 mg/cm2) sodium salicylate sample.

Fig. 5
Fig. 5

Relative quantum yield of one sodium salicylate sample at room temperature and at 80°K.

Fig. 6
Fig. 6

Relative quantum yield of sodium salicylate as measured using the apparatus illustrated in Fig. 1(b).

Tables (1)

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Table I Effect of Sample Thickness on Relative Quantum Yield at 2537 Å

Equations (1)

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η = k I λ V ,

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