Abstract

From experiments on samples of different thickness the amount of stored light in a particular sample of the infra-red sensitive phosphor made by activating strontium sulfide with cerium and samarium is calculated to be 2.6 × 1016 quanta per cubic cm. This corresponds, for this sample, to one quantum of light for every 8 samarium atoms or every 60 cerium atoms.

© 1946 Optical Society of America

Full Article  |  PDF Article

References

  • View by:
  • |
  • |
  • |

  1. See the reports of F. Urbach, R. Ward, G. R. Fonda, and others in the proceedings of the March, 1946 meeting of the Optical Society of America.
  2. R. T. Ellickson and W. L. Parker, Phys. Rev. 68, 534 (1946).
    [Crossref]
  3. The marked response of this phosphor to infra-red radiation was discovered by F. Urbach, reference 1.
  4. R. T. Ellickson, J. Opt. Soc. Am. 36, 261 (1946).
    [Crossref]
  5. R. T. Ellickson, Phys. Rev. 70, 685A (1946).
    [Crossref]

1946 (3)

R. T. Ellickson and W. L. Parker, Phys. Rev. 68, 534 (1946).
[Crossref]

R. T. Ellickson, J. Opt. Soc. Am. 36, 261 (1946).
[Crossref]

R. T. Ellickson, Phys. Rev. 70, 685A (1946).
[Crossref]

Ellickson, R. T.

R. T. Ellickson and W. L. Parker, Phys. Rev. 68, 534 (1946).
[Crossref]

R. T. Ellickson, Phys. Rev. 70, 685A (1946).
[Crossref]

R. T. Ellickson, J. Opt. Soc. Am. 36, 261 (1946).
[Crossref]

Parker, W. L.

R. T. Ellickson and W. L. Parker, Phys. Rev. 68, 534 (1946).
[Crossref]

J. Opt. Soc. Am. (1)

Phys. Rev. (2)

R. T. Ellickson, Phys. Rev. 70, 685A (1946).
[Crossref]

R. T. Ellickson and W. L. Parker, Phys. Rev. 68, 534 (1946).
[Crossref]

Other (2)

The marked response of this phosphor to infra-red radiation was discovered by F. Urbach, reference 1.

See the reports of F. Urbach, R. Ward, G. R. Fonda, and others in the proceedings of the March, 1946 meeting of the Optical Society of America.

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 (2)

Fig. 1
Fig. 1

Decay of brightness under constant infra-red intensity. Circles are experimental points; solid line is from Eq. (1) with p = 0.2.

Fig. 2
Fig. 2

Variation of initial brightness in arbitrary units with thickness of phosphor sample in microns.

Equations (1)

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

B ( t ) = B 0 p + 1 ( α t ) p + 1 0 α t y p ( 1 + y ) 2 d y ,