OSA's Digital Library

Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 14, Iss. 5 — May. 1, 1997
  • pp: 1057–1065

Valence-band mixing and continuum excitons in the excitonic model for coherent terahertz radiation from quantum wells

Adriaan J. Sengers and Leung Tsang  »View Author Affiliations


JOSA B, Vol. 14, Issue 5, pp. 1057-1065 (1997)
http://dx.doi.org/10.1364/JOSAB.14.001057


View Full Text Article

Acrobat PDF (338 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

An excitonic model of terahertz radiation from quantum wells including the full angular momentum dependence of the valence band and exciton states and including continuum excitons is presented. The inclusion of multiple bound and continuum excitons leads to a complete model and better agreement with experimental data in the time and frequency domains. With the inclusion of the complete angular momentum dependence and continuum excitons, the model demonstrates the effect of mixing between light-hole bound excitons and the heavy-hole continuum on the generated terahertz radiation. A discontinuity in the applied field dependence of terahertz radiation frequency that appears in the experiments of Planken et al. [Phys. Rev. Lett. 69, 3800 (1992)] can be attributed to a Fano resonance between bound light-hole excitons and the heavy-hole continuum.

© 1997 Optical Society of America

Citation
Adriaan J. Sengers and Leung Tsang, "Valence-band mixing and continuum excitons in the excitonic model for coherent terahertz radiation from quantum wells," J. Opt. Soc. Am. B 14, 1057-1065 (1997)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-14-5-1057


Sort:  Author  |  Year  |  Journal  |  Reset

References

  1. P. Planken, M. Nuss, I. Brener, K. Goossen, M. Luo, S. Chuang, and L. Pfeiffer, “Terahertz emission in single quantum wells after coherent optical excitation of light hole and heavy hole excitons,” Phys. Rev. Lett. 69, 3800–3803 (1992).
  2. P. Planken, I. Brener, M. Nuss, M. Luo, and S. Chuang, “Coherent control of terahertz charge oscillations in a coupled quantum well using phase-locked optical pulses,” Phys. Rev. B 48, 4903–4906 (1993).
  3. P. Planken, I. Brener, M. Nuss, M. Luo, S. Chuang, and L. Pfeiffer, “Thz radiation from coherent population changes in quantum wells,” Phys. Rev. B 49, 4668–4672 (1994).
  4. K. Leo, T. C. Damen, J. Shah, and K. Kohler, “Quantum beats of free and bound excitons in GaAs/AlxGa1−xAs quantum wells,” Phys. Rev. B 42, 11359–11361 (1990).
  5. D. J. Lovering, R. T. Phillips, G. J. Denton, and G. W. Smith, “Resonant generation of biexcitons in a GaAs quantum well,” Phys. Rev. Lett. 68, 1880–1883 (1992).
  6. H. Roskos, M. Nuss, J. Shah, K. Leo, and D. Miller, “Coherent submillimeter-wave emission from charge oscillations in a double-well potential,” Phys. Rev. Lett. 68, 2216–2219 (1992).
  7. 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, “Optical investigation of Bloch oscillations in a semiconductor superlattice,” Phys. Rev. B 46, 7252–7255 (1992).
  8. C. Waschke, H. G. Roskos, R. Schwedler, K. Leo, H. Kurz, and K. Kohler, “Coherent submillimeter-wave emission from Bloch oscillations in a semiconductor superlattice,” Phys. Rev. Lett. 70(21), 3319–3322 (1993).
  9. T. Dekorshy, P. Leisching, K. Kohler, and H. Kurz, “Electro-optic detection of Bloch oscillations,” Phys. Rev. B 50(11), 8106–8109 (1994).
  10. M. Luo, S. Chuang, P. Planken, I. Brener, H. Roskos, and M. Nuss, “Generation of terahertz electromagnetic pulses from quantum-well structures,” IEEE J. Quantum Electron. 30(6), 1478 (1994).
  11. L. Brener, P. C. M. Planken, M. C. Nuss, M. S. C. Luo, S. L. Chuang, L. Pfeiffer, D. E. Leaird, and A. M. Weiner, “Coherent control of terahertz emission and carrier populations in semiconductor heterostructures,” J. Opt. Soc. Am. B 11, 2457 (1994).
  12. C. Chansungsan, “Ultrafast and Terahertz-frequency semiconductor quantum-well optoelectronics,” Ph.D. dissertation (University of Washington, Seattle, Wash., 1994).
  13. M. F. Pereira, Jr. and S. W. Koch, “Effects of strain and Coulomb interaction on gain and refractive index in quantum-well lasers,” J. Opt. Soc. Am. B 10(5), 765 (1993).
  14. H. Haug and S. W. Koch, Quantum Theory of the Optical and Electronic Properties of Semiconductors, 2nd ed. (World Scientific, Singapore, 1993).
  15. L. Tsang, C. Chansungsan, and S. Chuang, “Adiabatic-following solutions for multisubband quantum wells excited by an ultrafast optical pump field,” Phys. Rev. B 45(20), 11918–11928 (1992).
  16. C. Chao and S. Chuang, “Momentum-space solution of exciton excited states and heavy-hole light-hole mixing in quantum wells,” Phys. Rev. B 48(11), 8210 (1993).
  17. A. Sengers, L. Tsang, and S. L. Chuang, “Strain effects on the exciton saturation in quantum well optical modulator devices,” J. Opt. Soc. Am. B 13, 2750–2758 (1996).
  18. A. J. Sengers, “Nonlinear optical properties of semiconductor quantum wells with opto-electronic applications,” Ph.D. dissertation (University of Washington, Seattle, Wash., 1996).
  19. B. Zhu and K. Huang, “Effect of valence-band hybridization on the exciton spectra in GaAs-AlxGa1−xAs quantum wells,” Phys. Rev. B 36, 8102 (1987).
  20. S. Chuang, S. Schmitt-Rink, D. Miller, and D. Chemla, “A reduced exciton Green’s function approach to absorption in a quantum well with an applied electric field,” Phys. Rev. B 43, 1500 (1991).
  21. W. H. Press, B. P. Flannery, S. A. Teukolsky, and W. T. Vetterling, Numerical Recipes in C, 2nd ed. (Cambridge U. Press, New York, 1988).
  22. D. Citrin, “Radiative lifetimes of excitons in quantum wells: Localization and phase-coherence effects,” Phys. Rev. B 47(7), 3832–3841 (1993).
  23. D. Broido and L. Sham, “Effective masses of holes at GaAs–AlGaAs heterojunctions,” Phys. Rev. B 31(2), 888–892 (1985).
  24. A. Twardowski and C. Hermann, “Variational calculation of polarization of quantum-well photoluminescence,” Phys. Rev. B 35(15), 8144–8153 (1987).

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.


« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited