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Coherent emission of electromagnetic pulses from bloch oscillations in semiconductor superlattices

  • H. G. Roskos
Chapter
Part of the Advances in Solid State Physics book series (ASSP, volume 34)

Abstract

In the last few years, terahertz-wave-emission spectroscopy has emerged as a powerful spectroscopic tool for the time-resolved investigation of coherent processes. We have employed this technique to study the spatial dynamics of coherent charge carriers in semiconductor superlattices. The observation of Bloch oscillations, i.e. the periodic motion of wave packets in a homogeneous electric field, in GaAs/AlGaAs superlattices is reported. The charge oscillations are detected via their emission of electromagnetic transients. Fundamental aspects of Bloch oscillations are discussed. We then address the proposal of Esaki and Tsu from 1970 to employ charge carrier oscillations in superlattices as a source for bias-tunable ultrahigh-frequency electromagnetic signals. A quasi-optical approach in contrast to an all-electrical scheme for generation and amplification of terahertz electromagnetic transients is presented.

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Bibliography

  1. [1]
    J. Feldmann, K. Leo, J. Shah, D. A. B. Miller, J. E. Cunningham, T. Meier, G. von Plessen, A. Schulze, P. Thomas, and S. Schmitt-Rink, Phys. Rev. B46, 7252 (1992)ADSCrossRefGoogle Scholar
  2. [2]
    K. Leo, P. Haring Bolivar, F. Brüggemann, R. Schwedler, and K. Köhler, Solid State Commun. 84, 943 (1992)CrossRefADSGoogle Scholar
  3. [3]
    J. Feldmann, in Festkörperprobleme/ Advances in Solid State Physics 32, edited by U. Rössler (Vieweg, Braunschweig 1992) 81Google Scholar
  4. [4]
    H. G. Roskos “Time-Resolved Terahertz Spectroscopy—An Overview”, in Proceedings of Ultrafast Processes in Spectroscopy '93; also in Lithu. J. Phys. 34, 175 (1994)Google Scholar
  5. [5]
    M. van Exter and D. Grischkowsky, IEEE Trans. Microwave Theory Tech. 38, 1684 (1990)CrossRefADSGoogle Scholar
  6. [6]
    C. Waschke, H. G. Roskos, R. Schwedler, K. Leo, H. Kurz, and K. Köhler, Phys. Rev. Lett. 70, 3319 (1993)CrossRefADSGoogle Scholar
  7. [7]
    C. Waschke, P. Leisching, P. Haring Bolivar, R. Schwedler, F. Brüggemann, H. G. Roskos, K. Leo, H. Kurz, and K. Köhler, Solid-State Electron. 37, 1321 (1994)CrossRefADSGoogle Scholar
  8. [8]
    C. Waschke, H. G. Roskos, K. Leo, H. Kurz, and K. Köhler, Semicond. Sci. Technol. 9, 416 (1994)CrossRefADSGoogle Scholar
  9. [9]
    P. Leisching, C. Waschke, W. Beck, P. Haring Bolivar, H. G. Roskos, K. Leo, H. Kurz, and K. Köhler, in Coherent Optical Interactions in Semiconductors, NATO-ASI Series (Plenum Press, New York, 1994)Google Scholar
  10. [10]
    T. Dekorsy, P. Leisching, C. Waschke, K. Köhler, K. Leo, H. G. Roskos, and H. Kurz, accepted for publication in Semicond. Sci. Technol. (1994)Google Scholar
  11. [11]
    P. Leisching, T. Dekorsy, C. Waschke, W. Beck, H. G. Roskos, K. Leo, H. Kurz, and K. Köhler, accepted for publication in Ultrafast Phenomena IX (Springer Verlag, Berlin, 1994)Google Scholar
  12. [12]
    F. Bloch, Z. Phys. 52, 555 (1928)ADSGoogle Scholar
  13. [13]
    C. Zener, Proc. R. Soc. London A145, 523 (1934)zbMATHCrossRefADSGoogle Scholar
  14. [14]
    G. Bastard and R. Ferreira, in Spectroscopy of Semiconductor Microstructures, NATO ASI Series (Plenum Press, New York, 1989) 333Google Scholar
  15. [15]
    J. B. Krieger and G. I. Iafrate, Phys. Rev. B33, 5494 (1986)ADSCrossRefGoogle Scholar
  16. [16]
    G. Nenciu, Rev. Mod. Phys. 63, 91 (1991)CrossRefADSGoogle Scholar
  17. [17]
    V. W. Houston, Phys. Rev. 57, 184 (1940)CrossRefADSMathSciNetGoogle Scholar
  18. [18]
    A. Di Carlo, P. Vogl, and W. Pötz, Phys. Rev. B (1994), in pressGoogle Scholar
  19. [19]
    W. Franz, Z. Naturforschg. 13 a, 484 (1958)zbMATHADSGoogle Scholar
  20. [20]
    L. V. Keldysh, Sov. Phys. JETP 34, 788 (1958)Google Scholar
  21. [21]
    L. Fritsche, phys. stat. sol. 13, 487 (1966)CrossRefADSGoogle Scholar
  22. [22]
    G. H. Wannier, Rev. Mod. Phys. 34, 645 (1962)CrossRefADSMathSciNetGoogle Scholar
  23. [23]
    M. M. Dignam and J. E. Sipe, Phys. Rev. B43, 4097 (1991)ADSCrossRefGoogle Scholar
  24. [24]
    Throughout this article, we do not distinguish between interband and intraband dephasing, although we have convincing evidence from our measurements that the inter-and the intraband dynamics differ significantly from each other. A thorough discussion of this issue requires a comparison of results obtained by various experimental techniques and is well beyond the scope of this article.Google Scholar
  25. [25]
    A. G. Chynoweth, G. H. Wannier, R. A. Logan, and D. E. Thomas, Phys. Rev. Lett. 5, 57 (1960)CrossRefADSGoogle Scholar
  26. [26]
    S. Maekawa, Phys. Rev. Lett. 24, 1175 (1970)CrossRefADSGoogle Scholar
  27. [27]
    R. W. Koss and L. M. Lambert, Phys. Rev. B5, 1479 (1972)ADSCrossRefGoogle Scholar
  28. [28]
    D. May and A. Vecht, J. Phys. C 8, L505 (1975)CrossRefADSGoogle Scholar
  29. [29]
    L. Esaki and R. Tsu, IBM J. Res. Dev. 14, 61 (1970)CrossRefGoogle Scholar
  30. [30]
    J. Bleuse, G. Bastard and P. Voisin, Phys. Rev. Lett. 60, 220 (1988)CrossRefADSGoogle Scholar
  31. [31]
    E. E. Mendez, F. Agulló-Rueda and J. M. Hong, Phys. Rev. Lett. 60, 2426 (1988)CrossRefADSGoogle Scholar
  32. [32]
    A. Sibille, J. F. Palmier, H. Wang and F. Mollot, Phys. Rev. Lett. 64, 52 (1990)CrossRefADSGoogle Scholar
  33. [33]
    A. Sibille, J. F. Palmier and F. Mollot, Appl. Phys. Lett. 60, 457 (1992)CrossRefADSGoogle Scholar
  34. [34]
    For a review of the physics of superlattices in a popular science journal see also E. E. Mendez and G. Bastard, Physics Today, June 1993, p. 34.Google Scholar
  35. [35]
    M. Koch, J. Feldmann, G. von Plessen, E. O. Göbel, P. Thomas and K. Köhler, Phys. Rev. Lett. 69, 3631 (1992)CrossRefADSGoogle Scholar
  36. [36]
    T. Tokizaki, A. Nakamura, Y. Ishida, T. Yaijma, I. Akai and T. Karasawa, in Ultrafast Phenomena VII, Springer Series in Chemical Physics 53 (Springer, Berlin, 1990) 253Google Scholar
  37. [37]
    P. Leisching, P. Haring Bolivar, W. Beck, Y. Dhaibi, F. Brüggemann, R. Schwedler, H. Kurz, K. Leo and K. Köhler, Phys. Rev. B (1994) in pressGoogle Scholar
  38. [38]
    G. Bastard and R. Ferreira, C. R. Acad. Sci. Paris 312, II, 971 (1991)Google Scholar
  39. [39]
    A. A. Ignatov, K. F. Renk and E. P. Dodin, Phys. Rev. Lett. 70, 1996 (1993)CrossRefADSGoogle Scholar
  40. [40]
    A. M. Bouchard and M. Luban, Phys. Rev. B 47, 6815 (1993)ADSCrossRefGoogle Scholar
  41. [41]
    M. Dignam, J. Sipe and J. Shah, accepted for publication in Phys. Rev. BGoogle Scholar
  42. [42]
    M. S. C. Luo, S. L. Chuang, P. C. M. Planken, I. Brener, H. G. Roskos, and M. C. Nuss, accepted for publication in IEEE J. Quantum Electron. (1994)Google Scholar
  43. [43]
    P. C. M. Planken, I. Brener, M. C. Nuss, H. G. Roskos, M. S. C. Luo, and S. L. Chuang, Appl. Phys. B 58, 249 (1994)CrossRefGoogle Scholar
  44. [44]
    S. L. Chuang, S. Schmitt-Rink, B. I. Greene, P. Saeta, and A. F. J. Levi, Phys. Rev. lett. 68, 102 (1992)CrossRefADSGoogle Scholar
  45. [45]
    H. G. Roskos, M. C. Nuss, J. Shah, K. Leo, D. A. B. Miller, A. M. Fox, S. Schmitt-Rink, and K. Köhler, Phys. Rev. Lett. 68, 2216 (1992)CrossRefADSGoogle Scholar
  46. [46]
    P. C. M. Planken, M. C. Nuss, W. H. Knox, D. A. B. Miller, and K. W. Goossen, Appl. Phys. Lett. 61, 2009 (1992)CrossRefADSGoogle Scholar
  47. [47]
    P. R. Smith, D. H. Auston, and M. C. Nuss, IEEE J. Quantum Electron. JQE-24, 255 (1988)CrossRefADSGoogle Scholar
  48. [48]
    Based on more detailed model calculations, the assisgnment of these transitions has been reversed compared to our earlier identification in Refs. [6, 7]., 70, 3319 (1993) C. Waschke, P. Leisching, P. Haring Bolivar, R. Schwedler, F. Brüggemann, H. G. Roskos, K. Leo, H. Kurz, and K. Köhler, Solid-State Electron. 37, 1321 (1994)CrossRefADSGoogle Scholar
  49. [49]
    T. Dekorsy, P. Leisching, W. Beck, Y. Dhaibi, K. leo, K. Köhler, H. G. Roskos, and H. Kurz, Proc. of the Intern. Quantum Electron. Confer. '94, May 8–13, 1994, Anaheim, USAGoogle Scholar
  50. [50]
    K. Leo, P. Haring Bolivar, G. Maidorn, H. Kurz, and K. Köhler, Proc. of the XXI'th Int. Conf. on the Phys. of Semic., Beijing, 1992, 983Google Scholar
  51. [51]
    Details will be published in Phys. Rev. B Google Scholar
  52. [52]
    K. Victor, H. G. Roskos, and C. Waschke, accepted for publication in J. Opt. Soc. Am. B, (1994) in pressGoogle Scholar
  53. [53]
    L. Schultheis, J. Kuhl, and A. Honold, Phys. Rev. Lett., 57, 1635 (1994)CrossRefADSGoogle Scholar
  54. [54]
    T. Elsaesser, H. J. Polland, A. Seilmeier, and W. Kaiser, IEEE J. Quantum Electron. JQE-20, 191 (1984)CrossRefADSGoogle Scholar
  55. [55]
    N. Lu, Optics Commun. 73, 479 (1989)CrossRefADSGoogle Scholar
  56. [56]
    S. Luryi, IEEE J. Quantum Electron. JQE-27, 54 (1991)CrossRefADSGoogle Scholar
  57. [57]
    M. S. C. Luo, S. L. Chuang, P. C. M. Planken, I. Brener, and M. C. Nuss, Phys. Rev. B48, 11043 (1994)Google Scholar
  58. [58]
    N. Lu, Phys. Rev. A40, 237 (1989)ADSCrossRefGoogle Scholar

Copyright information

© Friedr. Vieweg & Sohn Verlagsgesellschaft mbH 1995

Authors and Affiliations

  • H. G. Roskos
    • 1
  1. 1.Institut für Halbleitertechnik IIRheinisch-Westfälische Technische Hochschule (RWTH) AachenAachenGermany

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