Abstract

The responsivity at a constant detection area of non-steady-state photoinduced electromotive force (photo-emf) detectors is improved by a factor equal to the number of contact pairs contained in asymmetric interdigitated surface contacts. The polar nature of photo-emf current generation requires contact asymmetry in which one increases the total signal by blocking the illumination between alternate contact pairs, in distinct contrast to the behavior of conventional interdigitated contacts fabricated upon isotropic photoconductors.

© 1999 Optical Society of America

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  1. M. P. Petrov, I. A. Sokolov, S. I. Stepanov, and G. S. Trofimov, J. Appl. Phys. 68, 2216 (1990).
    [CrossRef]
  2. S. I. Stepanov, I. A. Sokolov, G. S. Trofimov, V. I. Vlad, D. Popa, and I. Apostol, Opt. Lett. 15, 1239 (1990).
    [CrossRef] [PubMed]
  3. C. B. Scruby and L. E. Drain, Laser Ultrasonics:?Techniques and Applications (Hilger, Bristol, UK, 1990).
  4. D. M. Pepper, G. J. Dunning, P. V. Mitchell, S. W. McCahon, M. B. Klein, and T. R. O' Meara, Proc. SPIE 2703, 91 (1996).
    [CrossRef]
  5. W. Roth, H. Schumacher, J. Kluge, H. J. Geelen, and H. Beneking, IEEE Trans. Electron. Devices 32, 1034 (1985).
    [CrossRef]
  6. M. Ito and O. Wada, IEEE J. Quantum Electron. QE-22, 1073 (1986).
    [CrossRef]
  7. J. H. Burroughes, IEEE Photon. Technol. Lett. 3, 660 (1991).
    [CrossRef]
  8. G. J. Dunning, D. M. Pepper, M. P. Chiao, P. V. Mitchell, and T. R. O'Meara, in Nondestructive Characterization of Materials, R. Green, ed. (Plenum, New York, 1997), Vol. VIII, pp. 21–26.
  9. S. I. Stepanov, Appl. Opt. 33, 915 (1994).
    [CrossRef] [PubMed]
  10. F. Davidson, C.-C. Wang, and S. Trivedi, Opt. Commun. 111, 470 (1994).
    [CrossRef]
  11. S. Stepanov, N. Korneev, S. Mansurova, D. Mayorga Cruz, M. Krasin'kova, and M. B. Klein, in Conference on Lasers and Electro-Optics (CLEO), Vol. 12 of 1997 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1997), p. 46.

1996

D. M. Pepper, G. J. Dunning, P. V. Mitchell, S. W. McCahon, M. B. Klein, and T. R. O' Meara, Proc. SPIE 2703, 91 (1996).
[CrossRef]

1994

S. I. Stepanov, Appl. Opt. 33, 915 (1994).
[CrossRef] [PubMed]

F. Davidson, C.-C. Wang, and S. Trivedi, Opt. Commun. 111, 470 (1994).
[CrossRef]

1991

J. H. Burroughes, IEEE Photon. Technol. Lett. 3, 660 (1991).
[CrossRef]

1990

M. P. Petrov, I. A. Sokolov, S. I. Stepanov, and G. S. Trofimov, J. Appl. Phys. 68, 2216 (1990).
[CrossRef]

S. I. Stepanov, I. A. Sokolov, G. S. Trofimov, V. I. Vlad, D. Popa, and I. Apostol, Opt. Lett. 15, 1239 (1990).
[CrossRef] [PubMed]

1986

M. Ito and O. Wada, IEEE J. Quantum Electron. QE-22, 1073 (1986).
[CrossRef]

1985

W. Roth, H. Schumacher, J. Kluge, H. J. Geelen, and H. Beneking, IEEE Trans. Electron. Devices 32, 1034 (1985).
[CrossRef]

Apostol, I.

Beneking, H.

W. Roth, H. Schumacher, J. Kluge, H. J. Geelen, and H. Beneking, IEEE Trans. Electron. Devices 32, 1034 (1985).
[CrossRef]

Burroughes, J. H.

J. H. Burroughes, IEEE Photon. Technol. Lett. 3, 660 (1991).
[CrossRef]

Chiao, M. P.

G. J. Dunning, D. M. Pepper, M. P. Chiao, P. V. Mitchell, and T. R. O'Meara, in Nondestructive Characterization of Materials, R. Green, ed. (Plenum, New York, 1997), Vol. VIII, pp. 21–26.

Davidson, F.

F. Davidson, C.-C. Wang, and S. Trivedi, Opt. Commun. 111, 470 (1994).
[CrossRef]

Drain, L. E.

C. B. Scruby and L. E. Drain, Laser Ultrasonics:?Techniques and Applications (Hilger, Bristol, UK, 1990).

Dunning, G. J.

D. M. Pepper, G. J. Dunning, P. V. Mitchell, S. W. McCahon, M. B. Klein, and T. R. O' Meara, Proc. SPIE 2703, 91 (1996).
[CrossRef]

G. J. Dunning, D. M. Pepper, M. P. Chiao, P. V. Mitchell, and T. R. O'Meara, in Nondestructive Characterization of Materials, R. Green, ed. (Plenum, New York, 1997), Vol. VIII, pp. 21–26.

Geelen, H. J.

W. Roth, H. Schumacher, J. Kluge, H. J. Geelen, and H. Beneking, IEEE Trans. Electron. Devices 32, 1034 (1985).
[CrossRef]

Ito, M.

M. Ito and O. Wada, IEEE J. Quantum Electron. QE-22, 1073 (1986).
[CrossRef]

Klein, M. B.

D. M. Pepper, G. J. Dunning, P. V. Mitchell, S. W. McCahon, M. B. Klein, and T. R. O' Meara, Proc. SPIE 2703, 91 (1996).
[CrossRef]

S. Stepanov, N. Korneev, S. Mansurova, D. Mayorga Cruz, M. Krasin'kova, and M. B. Klein, in Conference on Lasers and Electro-Optics (CLEO), Vol. 12 of 1997 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1997), p. 46.

Kluge, J.

W. Roth, H. Schumacher, J. Kluge, H. J. Geelen, and H. Beneking, IEEE Trans. Electron. Devices 32, 1034 (1985).
[CrossRef]

Korneev, N.

S. Stepanov, N. Korneev, S. Mansurova, D. Mayorga Cruz, M. Krasin'kova, and M. B. Klein, in Conference on Lasers and Electro-Optics (CLEO), Vol. 12 of 1997 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1997), p. 46.

Krasin'kova, M.

S. Stepanov, N. Korneev, S. Mansurova, D. Mayorga Cruz, M. Krasin'kova, and M. B. Klein, in Conference on Lasers and Electro-Optics (CLEO), Vol. 12 of 1997 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1997), p. 46.

Mansurova, S.

S. Stepanov, N. Korneev, S. Mansurova, D. Mayorga Cruz, M. Krasin'kova, and M. B. Klein, in Conference on Lasers and Electro-Optics (CLEO), Vol. 12 of 1997 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1997), p. 46.

Mayorga Cruz, D.

S. Stepanov, N. Korneev, S. Mansurova, D. Mayorga Cruz, M. Krasin'kova, and M. B. Klein, in Conference on Lasers and Electro-Optics (CLEO), Vol. 12 of 1997 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1997), p. 46.

McCahon, S. W.

D. M. Pepper, G. J. Dunning, P. V. Mitchell, S. W. McCahon, M. B. Klein, and T. R. O' Meara, Proc. SPIE 2703, 91 (1996).
[CrossRef]

Mitchell, P. V.

D. M. Pepper, G. J. Dunning, P. V. Mitchell, S. W. McCahon, M. B. Klein, and T. R. O' Meara, Proc. SPIE 2703, 91 (1996).
[CrossRef]

G. J. Dunning, D. M. Pepper, M. P. Chiao, P. V. Mitchell, and T. R. O'Meara, in Nondestructive Characterization of Materials, R. Green, ed. (Plenum, New York, 1997), Vol. VIII, pp. 21–26.

O' Meara, T. R.

D. M. Pepper, G. J. Dunning, P. V. Mitchell, S. W. McCahon, M. B. Klein, and T. R. O' Meara, Proc. SPIE 2703, 91 (1996).
[CrossRef]

O'Meara, T. R.

G. J. Dunning, D. M. Pepper, M. P. Chiao, P. V. Mitchell, and T. R. O'Meara, in Nondestructive Characterization of Materials, R. Green, ed. (Plenum, New York, 1997), Vol. VIII, pp. 21–26.

Pepper, D. M.

D. M. Pepper, G. J. Dunning, P. V. Mitchell, S. W. McCahon, M. B. Klein, and T. R. O' Meara, Proc. SPIE 2703, 91 (1996).
[CrossRef]

G. J. Dunning, D. M. Pepper, M. P. Chiao, P. V. Mitchell, and T. R. O'Meara, in Nondestructive Characterization of Materials, R. Green, ed. (Plenum, New York, 1997), Vol. VIII, pp. 21–26.

Petrov, M. P.

M. P. Petrov, I. A. Sokolov, S. I. Stepanov, and G. S. Trofimov, J. Appl. Phys. 68, 2216 (1990).
[CrossRef]

Popa, D.

Roth, W.

W. Roth, H. Schumacher, J. Kluge, H. J. Geelen, and H. Beneking, IEEE Trans. Electron. Devices 32, 1034 (1985).
[CrossRef]

Schumacher, H.

W. Roth, H. Schumacher, J. Kluge, H. J. Geelen, and H. Beneking, IEEE Trans. Electron. Devices 32, 1034 (1985).
[CrossRef]

Scruby, C. B.

C. B. Scruby and L. E. Drain, Laser Ultrasonics:?Techniques and Applications (Hilger, Bristol, UK, 1990).

Sokolov, I. A.

S. I. Stepanov, I. A. Sokolov, G. S. Trofimov, V. I. Vlad, D. Popa, and I. Apostol, Opt. Lett. 15, 1239 (1990).
[CrossRef] [PubMed]

M. P. Petrov, I. A. Sokolov, S. I. Stepanov, and G. S. Trofimov, J. Appl. Phys. 68, 2216 (1990).
[CrossRef]

Stepanov, S.

S. Stepanov, N. Korneev, S. Mansurova, D. Mayorga Cruz, M. Krasin'kova, and M. B. Klein, in Conference on Lasers and Electro-Optics (CLEO), Vol. 12 of 1997 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1997), p. 46.

Stepanov, S. I.

Trivedi, S.

F. Davidson, C.-C. Wang, and S. Trivedi, Opt. Commun. 111, 470 (1994).
[CrossRef]

Trofimov, G. S.

S. I. Stepanov, I. A. Sokolov, G. S. Trofimov, V. I. Vlad, D. Popa, and I. Apostol, Opt. Lett. 15, 1239 (1990).
[CrossRef] [PubMed]

M. P. Petrov, I. A. Sokolov, S. I. Stepanov, and G. S. Trofimov, J. Appl. Phys. 68, 2216 (1990).
[CrossRef]

Vlad, V. I.

Wada, O.

M. Ito and O. Wada, IEEE J. Quantum Electron. QE-22, 1073 (1986).
[CrossRef]

Wang, C.-C.

F. Davidson, C.-C. Wang, and S. Trivedi, Opt. Commun. 111, 470 (1994).
[CrossRef]

Appl. Opt.

IEEE J. Quantum Electron.

M. Ito and O. Wada, IEEE J. Quantum Electron. QE-22, 1073 (1986).
[CrossRef]

IEEE Photon. Technol. Lett.

J. H. Burroughes, IEEE Photon. Technol. Lett. 3, 660 (1991).
[CrossRef]

IEEE Trans. Electron. Devices

W. Roth, H. Schumacher, J. Kluge, H. J. Geelen, and H. Beneking, IEEE Trans. Electron. Devices 32, 1034 (1985).
[CrossRef]

J. Appl. Phys.

M. P. Petrov, I. A. Sokolov, S. I. Stepanov, and G. S. Trofimov, J. Appl. Phys. 68, 2216 (1990).
[CrossRef]

Opt. Commun.

F. Davidson, C.-C. Wang, and S. Trivedi, Opt. Commun. 111, 470 (1994).
[CrossRef]

Opt. Lett.

Proc. SPIE

D. M. Pepper, G. J. Dunning, P. V. Mitchell, S. W. McCahon, M. B. Klein, and T. R. O' Meara, Proc. SPIE 2703, 91 (1996).
[CrossRef]

Other

C. B. Scruby and L. E. Drain, Laser Ultrasonics:?Techniques and Applications (Hilger, Bristol, UK, 1990).

S. Stepanov, N. Korneev, S. Mansurova, D. Mayorga Cruz, M. Krasin'kova, and M. B. Klein, in Conference on Lasers and Electro-Optics (CLEO), Vol. 12 of 1997 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1997), p. 46.

G. J. Dunning, D. M. Pepper, M. P. Chiao, P. V. Mitchell, and T. R. O'Meara, in Nondestructive Characterization of Materials, R. Green, ed. (Plenum, New York, 1997), Vol. VIII, pp. 21–26.

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Figures (3)

Fig. 1
Fig. 1

AIDC designs with opaque layers to block the illumination of the narrow pairs. The dimensions are height H=4.5 mm and width W=2 mm. The detection area is constant at 9.0 mm2 for all three devices.

Fig. 2
Fig. 2

Frequency dependence of one-pair and two-pair devices with either optically shielded or illuminated narrow pairs for the two-pair device. The total signal of the two-pair device was decreased by removal of the opaque blocking layer and illumination of the narrow-pair area.

Fig. 3
Fig. 3

Performance of the one-pair, two-pair, and three-pair optically shielded devices as a function of (a) frequency and (b) fringe spacing. A single function is fitted to all the data with 2× and 3× multiplicative factors relative to the conventional one-pair device.

Equations (2)

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jdrift=en0+p0vdrift=½eμbpn0+p0m2×ξED1+K2LD2sinδ,
g=τttransit=Nμτm2ξ2WED1+K2LD2sinδ,

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