Abstract

The effect of the variation in the area sensitivity upon the calibration of instruments incorporating biplanar vacuum photodiodes for the measurement of laser power and energy is discussed. A technique for the measurement of the area sensitivity is described, and the experimental results for several tubes are given. At the present time it would appear to be difficult to use biplanar vacuum phctodiodes in devices to measure laser energy or power.

© 1973 Optical Society of America

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  1. In this article we use the term sensitivity to mean the output current times the reciprocal of the input radiant power. Rather than the term sensitivity we perhaps should have used the term responsivity. We did not because of the widespread use of the term sensitivity in the literature pertaining to photocathode surfaces.
  2. Radiation Control for Health and Safety Act of 1968, Public Law 90-602 and 42CFR78.
  3. Public Law 91-596.
  4. J. G. Edwards, Opto-Electronics 1, 1 (1969).
    [CrossRef]
  5. D. A. McSparron, C. A. Douglas, H. L. Badger, NBS Special Publication 300, H. K. Hammond, H. L. Mason (Nat’l Bureau of Standards, Washington, D.C., ds 19xx), Vol. 7.
  6. J. G. Edwards, J. Phys. E. Sci. Instrum. 3, 8 (1970).
  7. C. N. Potter, D. E. Sawyer, Rev. Sci. Instrum. 39, 180 (1968).
    [CrossRef]
  8. B. Sherman, J. F. Black, Appl. Opt. 9, 802 (1970).
    [CrossRef] [PubMed]
  9. R. J. Phelan, N. L. DeMeo, Appl. Opt. 10, 858 (1971).
    [CrossRef] [PubMed]
  10. In this article we will use the term power density to mean the power per unit area that passes through some plane.
  11. E. D. West, W. E. Case, A. L. Rasmussen, L. B. Schmidt, J. Res. NBS 76A, 13 (1972).
    [CrossRef]

1972

E. D. West, W. E. Case, A. L. Rasmussen, L. B. Schmidt, J. Res. NBS 76A, 13 (1972).
[CrossRef]

1971

1970

J. G. Edwards, J. Phys. E. Sci. Instrum. 3, 8 (1970).

B. Sherman, J. F. Black, Appl. Opt. 9, 802 (1970).
[CrossRef] [PubMed]

1969

J. G. Edwards, Opto-Electronics 1, 1 (1969).
[CrossRef]

1968

C. N. Potter, D. E. Sawyer, Rev. Sci. Instrum. 39, 180 (1968).
[CrossRef]

Badger, H. L.

D. A. McSparron, C. A. Douglas, H. L. Badger, NBS Special Publication 300, H. K. Hammond, H. L. Mason (Nat’l Bureau of Standards, Washington, D.C., ds 19xx), Vol. 7.

Black, J. F.

Case, W. E.

E. D. West, W. E. Case, A. L. Rasmussen, L. B. Schmidt, J. Res. NBS 76A, 13 (1972).
[CrossRef]

DeMeo, N. L.

Douglas, C. A.

D. A. McSparron, C. A. Douglas, H. L. Badger, NBS Special Publication 300, H. K. Hammond, H. L. Mason (Nat’l Bureau of Standards, Washington, D.C., ds 19xx), Vol. 7.

Edwards, J. G.

J. G. Edwards, J. Phys. E. Sci. Instrum. 3, 8 (1970).

J. G. Edwards, Opto-Electronics 1, 1 (1969).
[CrossRef]

McSparron, D. A.

D. A. McSparron, C. A. Douglas, H. L. Badger, NBS Special Publication 300, H. K. Hammond, H. L. Mason (Nat’l Bureau of Standards, Washington, D.C., ds 19xx), Vol. 7.

Phelan, R. J.

Potter, C. N.

C. N. Potter, D. E. Sawyer, Rev. Sci. Instrum. 39, 180 (1968).
[CrossRef]

Rasmussen, A. L.

E. D. West, W. E. Case, A. L. Rasmussen, L. B. Schmidt, J. Res. NBS 76A, 13 (1972).
[CrossRef]

Sawyer, D. E.

C. N. Potter, D. E. Sawyer, Rev. Sci. Instrum. 39, 180 (1968).
[CrossRef]

Schmidt, L. B.

E. D. West, W. E. Case, A. L. Rasmussen, L. B. Schmidt, J. Res. NBS 76A, 13 (1972).
[CrossRef]

Sherman, B.

West, E. D.

E. D. West, W. E. Case, A. L. Rasmussen, L. B. Schmidt, J. Res. NBS 76A, 13 (1972).
[CrossRef]

Appl. Opt.

J. Phys. E. Sci. Instrum.

J. G. Edwards, J. Phys. E. Sci. Instrum. 3, 8 (1970).

J. Res. NBS

E. D. West, W. E. Case, A. L. Rasmussen, L. B. Schmidt, J. Res. NBS 76A, 13 (1972).
[CrossRef]

Opto-Electronics

J. G. Edwards, Opto-Electronics 1, 1 (1969).
[CrossRef]

Rev. Sci. Instrum.

C. N. Potter, D. E. Sawyer, Rev. Sci. Instrum. 39, 180 (1968).
[CrossRef]

Other

In this article we will use the term power density to mean the power per unit area that passes through some plane.

D. A. McSparron, C. A. Douglas, H. L. Badger, NBS Special Publication 300, H. K. Hammond, H. L. Mason (Nat’l Bureau of Standards, Washington, D.C., ds 19xx), Vol. 7.

In this article we use the term sensitivity to mean the output current times the reciprocal of the input radiant power. Rather than the term sensitivity we perhaps should have used the term responsivity. We did not because of the widespread use of the term sensitivity in the literature pertaining to photocathode surfaces.

Radiation Control for Health and Safety Act of 1968, Public Law 90-602 and 42CFR78.

Public Law 91-596.

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Figures (6)

Fig. 1
Fig. 1

A diagram of the system used to measure the area sensitivity of biplanar vacuum photodiodes.

Fig. 2
Fig. 2

Area sensitivity of biplanar vacuum photodiode no. 1.

Fig. 3
Fig. 3

Area sensitivity of biplanar vacuum photodiode no. 2.

Fig. 4
Fig. 4

Area sensitivity of photodiode no. 1 with diffuser.

Fig. 5
Fig. 5

Area sensitivity of photodiode no. 2 with diffuser.

Fig. 6
Fig. 6

Area sensitivity of a remotely processed photocathode.

Equations (2)

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i = K ( x , y ) p ( x , y ) d x d y ,
K ¯ = ( 1 / A ) K ( x , y ) d x d y ,

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