Abstract

Measurements of absorption and excitation spectra for Nd<sup>3+</sup> in soda-lime silicate glass, CaWO<sub>4</sub>, and Y<sub>3</sub>Al<sub>2</sub>(AlO<sub>4</sub>)<sub>3</sub> (YAG) are presented. The relative quantum efficiency for <sup>4</sup><i>F</i><sub>3/2</sub> → <sup>4</sup><i>I</i><sub>11/2</sub> fluorescence is evaluated for principal absorptions over the wavelength range 3250–9300 Å. For the crystals, quantum efficiency is found to be independent of the level pumped, to within ±12% for CaWO<sub>4</sub> and ±13% for YAG. Except for slight quenching of levels between 4000 and 5500 Å, quantum efficiency for the glass sample is independent of pumping level to within ±5%. These results indicate that the efficiency of each step in the process which populates the <sup>4</sup><i>F</i><sub>3/2</sub> level is near unity. Also, over the range of structures investigated, relative Nd<sup>3+</sup> quantum efficiency appears to be independent of the details of crystal-field structure.

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  2. R. A. Brandewie, J. S. Hitt, and J. M. Feldman, J. Appl. Phys. 34, 3415 (1965).
  3. W. T. Haswell, J. S. Hitt, and J. M. Feldman, Proc. IEEE 52, 93 (1964).
  4. M. L. Bhaumik and C. L. Telk, J. Opt. Soc. Am. 54, 1211 (1964).
  5. R. A. Gudmundsen, O. J. March, and E. Matovich, J. Chem. Phys. 39, 272 (1963).
  6. J. G. DeShazer and L. G. Komai, J. Opt. Soc. Am. 55, 940 (1965).
  7. R. Stair, W. E. Schneider, and J. K. Jackson, Appl. Opt. 2, 1151 (1963).
  8. T. C. MvacAvoy, M. L. Charters, and R. D. Maurer, Solid State Technol., February 1965, p. 23.
  9. L. F. Johnson, J. Appl. Phys. 34, 897 (1963).
  10. J. L. Koningstein and J. E. Geusic, Phys. Rev. 136, A711 (1964).
  11. R. A. Brandewie and C. L. Telk, Bull. Am. Phys. Soc. 10, 1103 (1965).
  12. J. H. Goncz and P. B. Newell, J. Opt. Soc. Am. 56, 87 (1966).

Bhaumik, M. L.

M. L. Bhaumik and C. L. Telk, J. Opt. Soc. Am. 54, 1211 (1964).

Brandewie, R. A.

R. A. Brandewie, J. S. Hitt, and J. M. Feldman, J. Appl. Phys. 34, 3415 (1965).

R. A. Brandewie and C. L. Telk, Bull. Am. Phys. Soc. 10, 1103 (1965).

Charters, M. L.

T. C. MvacAvoy, M. L. Charters, and R. D. Maurer, Solid State Technol., February 1965, p. 23.

DeShazer, J. G.

J. G. DeShazer and L. G. Komai, J. Opt. Soc. Am. 55, 940 (1965).

Feldman, J. M.

W. T. Haswell, J. S. Hitt, and J. M. Feldman, Proc. IEEE 52, 93 (1964).

R. A. Brandewie, J. S. Hitt, and J. M. Feldman, J. Appl. Phys. 34, 3415 (1965).

Geusic, J. E.

J. L. Koningstein and J. E. Geusic, Phys. Rev. 136, A711 (1964).

Goncz, J. H.

J. H. Goncz and P. B. Newell, J. Opt. Soc. Am. 56, 87 (1966).

Gudmundsen, R. A.

R. A. Gudmundsen, O. J. March, and E. Matovich, J. Chem. Phys. 39, 272 (1963).

Harada, R. H.

R. H. Harada and C. K. Suzuki, Appl. Opt. 4, 225 (1965).

Haswell, W. T.

W. T. Haswell, J. S. Hitt, and J. M. Feldman, Proc. IEEE 52, 93 (1964).

Hitt, J. S.

W. T. Haswell, J. S. Hitt, and J. M. Feldman, Proc. IEEE 52, 93 (1964).

R. A. Brandewie, J. S. Hitt, and J. M. Feldman, J. Appl. Phys. 34, 3415 (1965).

Jackson, J. K.

R. Stair, W. E. Schneider, and J. K. Jackson, Appl. Opt. 2, 1151 (1963).

Johnson, L. F.

L. F. Johnson, J. Appl. Phys. 34, 897 (1963).

Komai, L. G.

J. G. DeShazer and L. G. Komai, J. Opt. Soc. Am. 55, 940 (1965).

Koningstein, J. L.

J. L. Koningstein and J. E. Geusic, Phys. Rev. 136, A711 (1964).

March, O. J.

R. A. Gudmundsen, O. J. March, and E. Matovich, J. Chem. Phys. 39, 272 (1963).

Matovich, E.

R. A. Gudmundsen, O. J. March, and E. Matovich, J. Chem. Phys. 39, 272 (1963).

Maurer, R. D.

T. C. MvacAvoy, M. L. Charters, and R. D. Maurer, Solid State Technol., February 1965, p. 23.

MvacAvoy, T. C.

T. C. MvacAvoy, M. L. Charters, and R. D. Maurer, Solid State Technol., February 1965, p. 23.

Newell, P. B.

J. H. Goncz and P. B. Newell, J. Opt. Soc. Am. 56, 87 (1966).

Schneider, W. E.

R. Stair, W. E. Schneider, and J. K. Jackson, Appl. Opt. 2, 1151 (1963).

Stair, R.

R. Stair, W. E. Schneider, and J. K. Jackson, Appl. Opt. 2, 1151 (1963).

Suzuki, C. K.

R. H. Harada and C. K. Suzuki, Appl. Opt. 4, 225 (1965).

Telk, C. L.

M. L. Bhaumik and C. L. Telk, J. Opt. Soc. Am. 54, 1211 (1964).

R. A. Brandewie and C. L. Telk, Bull. Am. Phys. Soc. 10, 1103 (1965).

Other

R. H. Harada and C. K. Suzuki, Appl. Opt. 4, 225 (1965).

R. A. Brandewie, J. S. Hitt, and J. M. Feldman, J. Appl. Phys. 34, 3415 (1965).

W. T. Haswell, J. S. Hitt, and J. M. Feldman, Proc. IEEE 52, 93 (1964).

M. L. Bhaumik and C. L. Telk, J. Opt. Soc. Am. 54, 1211 (1964).

R. A. Gudmundsen, O. J. March, and E. Matovich, J. Chem. Phys. 39, 272 (1963).

J. G. DeShazer and L. G. Komai, J. Opt. Soc. Am. 55, 940 (1965).

R. Stair, W. E. Schneider, and J. K. Jackson, Appl. Opt. 2, 1151 (1963).

T. C. MvacAvoy, M. L. Charters, and R. D. Maurer, Solid State Technol., February 1965, p. 23.

L. F. Johnson, J. Appl. Phys. 34, 897 (1963).

J. L. Koningstein and J. E. Geusic, Phys. Rev. 136, A711 (1964).

R. A. Brandewie and C. L. Telk, Bull. Am. Phys. Soc. 10, 1103 (1965).

J. H. Goncz and P. B. Newell, J. Opt. Soc. Am. 56, 87 (1966).

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