Abstract

We investigate the recombination dynamics of photoexcited carriers in proton-bombarded InP crystals using near-infrared pump–THz-probe spectroscopy. The carrier lifetime is directly related to the proton dose and hence to the induced trap density: In weakly damaged samples we observe a saturation of the trap states for high-excitation densities. For highly damaged samples the time-dependent THz transmission can be explained by taking into account an Auger-assisted trapping process.

© 2001 Optical Society of America

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References

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  1. For a review. see, e.g., J. Shah, ed., Ultrafast Spectroscopy of Semiconductors and Semiconductor Nanostructures (Springer-Verlag, New York, 1996).
  2. P. N. Saeta, J. F. Federici, B. I. Greene, and D. R. Dykaar, “Intervalley scattering in GaAs and InP probed by pulsed far-infrared transmission spectroscopy,” Appl. Phys. Lett. 60, 1477–1479 (1992).
    [CrossRef]
  3. R. H. M. Groeneveld and D. Grischkowsky, “Picosecond time-resolved far-infrared experiments on carriers and excitons in GaAs/AlGaAs multiple quantum wells,” J. Opt. Soc. Am. B 11, 2502–2507 (1994).
    [CrossRef]
  4. J. Zielbauer and M. Wegener, “Ultrafast optical pump THz-probe spectroscopy on silicon,” Appl. Phys. Lett. 68, 1223–1225 (1996).
    [CrossRef]
  5. O. Madelung, ed., Semiconductors: Group IV Elements and III-V Compounds (Springer-Verlag, New York, 1991).
  6. R. A. Höpfel, Ch. Teissl, and K. F. Lamprecht, “Intraband inversion due to ultrashort carrier lifetimes in proton-bombarded InP,” Phys. Rev. B 53, 12581–12584 (1996).
    [CrossRef]
  7. X. C. Zhang, X. F. Ma, Y. Jin, T. M. Lu, E. P. Boden, P. D. Phelps, K. R. Stewart, and C. P. Yakymyshyn, “Terahertz optical rectification from a nonlinear organic crystal,” Appl. Phys. Lett. 61, 3080–3082 (1992).
    [CrossRef]
  8. C. Messner, M. Sailer, H. Kostner, and R. A. Höpfel, “Coherent generation of tunable, narrow-band THz radiation by optical rectification of femtosecond pulse trains,” Appl. Phys. B 64, 619–621 (1997).
    [CrossRef]

1997 (1)

C. Messner, M. Sailer, H. Kostner, and R. A. Höpfel, “Coherent generation of tunable, narrow-band THz radiation by optical rectification of femtosecond pulse trains,” Appl. Phys. B 64, 619–621 (1997).
[CrossRef]

1996 (2)

J. Zielbauer and M. Wegener, “Ultrafast optical pump THz-probe spectroscopy on silicon,” Appl. Phys. Lett. 68, 1223–1225 (1996).
[CrossRef]

R. A. Höpfel, Ch. Teissl, and K. F. Lamprecht, “Intraband inversion due to ultrashort carrier lifetimes in proton-bombarded InP,” Phys. Rev. B 53, 12581–12584 (1996).
[CrossRef]

1994 (1)

1992 (2)

X. C. Zhang, X. F. Ma, Y. Jin, T. M. Lu, E. P. Boden, P. D. Phelps, K. R. Stewart, and C. P. Yakymyshyn, “Terahertz optical rectification from a nonlinear organic crystal,” Appl. Phys. Lett. 61, 3080–3082 (1992).
[CrossRef]

P. N. Saeta, J. F. Federici, B. I. Greene, and D. R. Dykaar, “Intervalley scattering in GaAs and InP probed by pulsed far-infrared transmission spectroscopy,” Appl. Phys. Lett. 60, 1477–1479 (1992).
[CrossRef]

Boden, E. P.

X. C. Zhang, X. F. Ma, Y. Jin, T. M. Lu, E. P. Boden, P. D. Phelps, K. R. Stewart, and C. P. Yakymyshyn, “Terahertz optical rectification from a nonlinear organic crystal,” Appl. Phys. Lett. 61, 3080–3082 (1992).
[CrossRef]

Dykaar, D. R.

P. N. Saeta, J. F. Federici, B. I. Greene, and D. R. Dykaar, “Intervalley scattering in GaAs and InP probed by pulsed far-infrared transmission spectroscopy,” Appl. Phys. Lett. 60, 1477–1479 (1992).
[CrossRef]

Federici, J. F.

P. N. Saeta, J. F. Federici, B. I. Greene, and D. R. Dykaar, “Intervalley scattering in GaAs and InP probed by pulsed far-infrared transmission spectroscopy,” Appl. Phys. Lett. 60, 1477–1479 (1992).
[CrossRef]

Greene, B. I.

P. N. Saeta, J. F. Federici, B. I. Greene, and D. R. Dykaar, “Intervalley scattering in GaAs and InP probed by pulsed far-infrared transmission spectroscopy,” Appl. Phys. Lett. 60, 1477–1479 (1992).
[CrossRef]

Grischkowsky, D.

Groeneveld, R. H. M.

Höpfel, R. A.

C. Messner, M. Sailer, H. Kostner, and R. A. Höpfel, “Coherent generation of tunable, narrow-band THz radiation by optical rectification of femtosecond pulse trains,” Appl. Phys. B 64, 619–621 (1997).
[CrossRef]

R. A. Höpfel, Ch. Teissl, and K. F. Lamprecht, “Intraband inversion due to ultrashort carrier lifetimes in proton-bombarded InP,” Phys. Rev. B 53, 12581–12584 (1996).
[CrossRef]

Jin, Y.

X. C. Zhang, X. F. Ma, Y. Jin, T. M. Lu, E. P. Boden, P. D. Phelps, K. R. Stewart, and C. P. Yakymyshyn, “Terahertz optical rectification from a nonlinear organic crystal,” Appl. Phys. Lett. 61, 3080–3082 (1992).
[CrossRef]

Kostner, H.

C. Messner, M. Sailer, H. Kostner, and R. A. Höpfel, “Coherent generation of tunable, narrow-band THz radiation by optical rectification of femtosecond pulse trains,” Appl. Phys. B 64, 619–621 (1997).
[CrossRef]

Lamprecht, K. F.

R. A. Höpfel, Ch. Teissl, and K. F. Lamprecht, “Intraband inversion due to ultrashort carrier lifetimes in proton-bombarded InP,” Phys. Rev. B 53, 12581–12584 (1996).
[CrossRef]

Lu, T. M.

X. C. Zhang, X. F. Ma, Y. Jin, T. M. Lu, E. P. Boden, P. D. Phelps, K. R. Stewart, and C. P. Yakymyshyn, “Terahertz optical rectification from a nonlinear organic crystal,” Appl. Phys. Lett. 61, 3080–3082 (1992).
[CrossRef]

Ma, X. F.

X. C. Zhang, X. F. Ma, Y. Jin, T. M. Lu, E. P. Boden, P. D. Phelps, K. R. Stewart, and C. P. Yakymyshyn, “Terahertz optical rectification from a nonlinear organic crystal,” Appl. Phys. Lett. 61, 3080–3082 (1992).
[CrossRef]

Messner, C.

C. Messner, M. Sailer, H. Kostner, and R. A. Höpfel, “Coherent generation of tunable, narrow-band THz radiation by optical rectification of femtosecond pulse trains,” Appl. Phys. B 64, 619–621 (1997).
[CrossRef]

Phelps, P. D.

X. C. Zhang, X. F. Ma, Y. Jin, T. M. Lu, E. P. Boden, P. D. Phelps, K. R. Stewart, and C. P. Yakymyshyn, “Terahertz optical rectification from a nonlinear organic crystal,” Appl. Phys. Lett. 61, 3080–3082 (1992).
[CrossRef]

Saeta, P. N.

P. N. Saeta, J. F. Federici, B. I. Greene, and D. R. Dykaar, “Intervalley scattering in GaAs and InP probed by pulsed far-infrared transmission spectroscopy,” Appl. Phys. Lett. 60, 1477–1479 (1992).
[CrossRef]

Sailer, M.

C. Messner, M. Sailer, H. Kostner, and R. A. Höpfel, “Coherent generation of tunable, narrow-band THz radiation by optical rectification of femtosecond pulse trains,” Appl. Phys. B 64, 619–621 (1997).
[CrossRef]

Stewart, K. R.

X. C. Zhang, X. F. Ma, Y. Jin, T. M. Lu, E. P. Boden, P. D. Phelps, K. R. Stewart, and C. P. Yakymyshyn, “Terahertz optical rectification from a nonlinear organic crystal,” Appl. Phys. Lett. 61, 3080–3082 (1992).
[CrossRef]

Teissl, Ch.

R. A. Höpfel, Ch. Teissl, and K. F. Lamprecht, “Intraband inversion due to ultrashort carrier lifetimes in proton-bombarded InP,” Phys. Rev. B 53, 12581–12584 (1996).
[CrossRef]

Wegener, M.

J. Zielbauer and M. Wegener, “Ultrafast optical pump THz-probe spectroscopy on silicon,” Appl. Phys. Lett. 68, 1223–1225 (1996).
[CrossRef]

Yakymyshyn, C. P.

X. C. Zhang, X. F. Ma, Y. Jin, T. M. Lu, E. P. Boden, P. D. Phelps, K. R. Stewart, and C. P. Yakymyshyn, “Terahertz optical rectification from a nonlinear organic crystal,” Appl. Phys. Lett. 61, 3080–3082 (1992).
[CrossRef]

Zhang, X. C.

X. C. Zhang, X. F. Ma, Y. Jin, T. M. Lu, E. P. Boden, P. D. Phelps, K. R. Stewart, and C. P. Yakymyshyn, “Terahertz optical rectification from a nonlinear organic crystal,” Appl. Phys. Lett. 61, 3080–3082 (1992).
[CrossRef]

Zielbauer, J.

J. Zielbauer and M. Wegener, “Ultrafast optical pump THz-probe spectroscopy on silicon,” Appl. Phys. Lett. 68, 1223–1225 (1996).
[CrossRef]

Appl. Phys. B (1)

C. Messner, M. Sailer, H. Kostner, and R. A. Höpfel, “Coherent generation of tunable, narrow-band THz radiation by optical rectification of femtosecond pulse trains,” Appl. Phys. B 64, 619–621 (1997).
[CrossRef]

Appl. Phys. Lett. (3)

P. N. Saeta, J. F. Federici, B. I. Greene, and D. R. Dykaar, “Intervalley scattering in GaAs and InP probed by pulsed far-infrared transmission spectroscopy,” Appl. Phys. Lett. 60, 1477–1479 (1992).
[CrossRef]

J. Zielbauer and M. Wegener, “Ultrafast optical pump THz-probe spectroscopy on silicon,” Appl. Phys. Lett. 68, 1223–1225 (1996).
[CrossRef]

X. C. Zhang, X. F. Ma, Y. Jin, T. M. Lu, E. P. Boden, P. D. Phelps, K. R. Stewart, and C. P. Yakymyshyn, “Terahertz optical rectification from a nonlinear organic crystal,” Appl. Phys. Lett. 61, 3080–3082 (1992).
[CrossRef]

J. Opt. Soc. Am. B (1)

Phys. Rev. B (1)

R. A. Höpfel, Ch. Teissl, and K. F. Lamprecht, “Intraband inversion due to ultrashort carrier lifetimes in proton-bombarded InP,” Phys. Rev. B 53, 12581–12584 (1996).
[CrossRef]

Other (2)

O. Madelung, ed., Semiconductors: Group IV Elements and III-V Compounds (Springer-Verlag, New York, 1991).

For a review. see, e.g., J. Shah, ed., Ultrafast Spectroscopy of Semiconductors and Semiconductor Nanostructures (Springer-Verlag, New York, 1996).

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Figures (3)

Fig. 1
Fig. 1

Normalized differential THz transmission as a function of the delay time for an InP sample bombarded with an ion dose of (a) 1×1014 H+/cm2 and (b) 5×1015 H+/cm2 for excitation densities between 2.18 and 1.09×1019 cm-3.

Fig. 2
Fig. 2

Schematic of the different relaxation channels used in the rate-equation model.

Fig. 3
Fig. 3

Dotted curves are the measured differential THz transmission as a function of the delay time for an InP sample bombarded with an ion dose of 5×1015 H+/cm2, and the solid curves are fits using our model. The dashed curves are simple exponential fits resulting in different lifetimes τse.

Equations (3)

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dfcdt=g(t)N0-γCVN0fcfV-γCTfCNt(1-fT)-αN0fC2Nt(1-fT),
dfTdt=γCTN0fC(1-fT)+αN02fC2(1-fT)-γTVN0fTfV,
dfVdt=g(t)N0-γCVN0fCfV-γTVNtfTfV.

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