Abstract

A convenient method for generating upshifted and harmonically-generated terahertz transients via the creation of highly anisotropic electron-hole wavepackets in quantum wells is described. Our results are in agreement with experimental measurements.

© 1999 Optical Society of America

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References

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  1. S. Hughes, D.S. Citrin, “Ultrafast heating and switching of a semiconductor optical amplifier using half-cycle terahertz pulses,” Phys. Rev. B. 58(1998).
    [CrossRef]
  2. J.L. Krause et al., “Creating and detecting shaped Rydberg wavepackets,” Phys. Rev. Lett. 79,4978 (1998).
    [CrossRef]
  3. K.B. Nordstom et al., “Observation of dynamical Franz-Keldysh effect,” Phys. Stat. Sol. b 204,52 (1997). Using magnetoexcitons: J. Kono et al., “Resonant terahertz optical sideband generation from confined magnetoexcitons,” Phys. Rev. Lett. 79,1758 (1997).
    [CrossRef]
  4. A.P. Jauho, K. Johnsen, “Dynamical Franz-Keldysh effect,” Phys. Rev. Lett. 24,4576 (1996).
    [CrossRef]
  5. S. Hughes, D.S. Citrin, “The creation of highly anisotropic wavepackets in quantum wells: Dynamical Franz-Keldysh effect in the optical and terahertz regimes,” Phys. Rev. B. 59 (P.R. 15969), (1999).
    [CrossRef]
  6. S.L. Chuang et al., “Optical rectification at semiconductor surfaces,” Phys. Rev. Lett. 68,102 (1992); P.C.M. Planken et al., “Terahertz emission in single quantum-wells after coherent-optical excitation of light hole and heavy hole excitons,” Phys. Rev. Lett. 69,3800 (1992).
    [CrossRef] [PubMed]
  7. S. Hughes, D.S. Citrin, “Two-pulse nondegenerate excitation of electron-hole wavepackets in quantum wells: Tunable terahertz emission,” Opt. Lett., in press.

1999 (1)

S. Hughes, D.S. Citrin, “The creation of highly anisotropic wavepackets in quantum wells: Dynamical Franz-Keldysh effect in the optical and terahertz regimes,” Phys. Rev. B. 59 (P.R. 15969), (1999).
[CrossRef]

1998 (2)

S. Hughes, D.S. Citrin, “Ultrafast heating and switching of a semiconductor optical amplifier using half-cycle terahertz pulses,” Phys. Rev. B. 58(1998).
[CrossRef]

J.L. Krause et al., “Creating and detecting shaped Rydberg wavepackets,” Phys. Rev. Lett. 79,4978 (1998).
[CrossRef]

1997 (1)

K.B. Nordstom et al., “Observation of dynamical Franz-Keldysh effect,” Phys. Stat. Sol. b 204,52 (1997). Using magnetoexcitons: J. Kono et al., “Resonant terahertz optical sideband generation from confined magnetoexcitons,” Phys. Rev. Lett. 79,1758 (1997).
[CrossRef]

1996 (1)

A.P. Jauho, K. Johnsen, “Dynamical Franz-Keldysh effect,” Phys. Rev. Lett. 24,4576 (1996).
[CrossRef]

1992 (1)

S.L. Chuang et al., “Optical rectification at semiconductor surfaces,” Phys. Rev. Lett. 68,102 (1992); P.C.M. Planken et al., “Terahertz emission in single quantum-wells after coherent-optical excitation of light hole and heavy hole excitons,” Phys. Rev. Lett. 69,3800 (1992).
[CrossRef] [PubMed]

Chuang, S.L.

S.L. Chuang et al., “Optical rectification at semiconductor surfaces,” Phys. Rev. Lett. 68,102 (1992); P.C.M. Planken et al., “Terahertz emission in single quantum-wells after coherent-optical excitation of light hole and heavy hole excitons,” Phys. Rev. Lett. 69,3800 (1992).
[CrossRef] [PubMed]

Citrin, D.S.

S. Hughes, D.S. Citrin, “The creation of highly anisotropic wavepackets in quantum wells: Dynamical Franz-Keldysh effect in the optical and terahertz regimes,” Phys. Rev. B. 59 (P.R. 15969), (1999).
[CrossRef]

S. Hughes, D.S. Citrin, “Ultrafast heating and switching of a semiconductor optical amplifier using half-cycle terahertz pulses,” Phys. Rev. B. 58(1998).
[CrossRef]

S. Hughes, D.S. Citrin, “Two-pulse nondegenerate excitation of electron-hole wavepackets in quantum wells: Tunable terahertz emission,” Opt. Lett., in press.

Hughes, S.

S. Hughes, D.S. Citrin, “The creation of highly anisotropic wavepackets in quantum wells: Dynamical Franz-Keldysh effect in the optical and terahertz regimes,” Phys. Rev. B. 59 (P.R. 15969), (1999).
[CrossRef]

S. Hughes, D.S. Citrin, “Ultrafast heating and switching of a semiconductor optical amplifier using half-cycle terahertz pulses,” Phys. Rev. B. 58(1998).
[CrossRef]

S. Hughes, D.S. Citrin, “Two-pulse nondegenerate excitation of electron-hole wavepackets in quantum wells: Tunable terahertz emission,” Opt. Lett., in press.

Jauho, A.P.

A.P. Jauho, K. Johnsen, “Dynamical Franz-Keldysh effect,” Phys. Rev. Lett. 24,4576 (1996).
[CrossRef]

Johnsen, K.

A.P. Jauho, K. Johnsen, “Dynamical Franz-Keldysh effect,” Phys. Rev. Lett. 24,4576 (1996).
[CrossRef]

Krause, J.L.

J.L. Krause et al., “Creating and detecting shaped Rydberg wavepackets,” Phys. Rev. Lett. 79,4978 (1998).
[CrossRef]

Nordstom, K.B.

K.B. Nordstom et al., “Observation of dynamical Franz-Keldysh effect,” Phys. Stat. Sol. b 204,52 (1997). Using magnetoexcitons: J. Kono et al., “Resonant terahertz optical sideband generation from confined magnetoexcitons,” Phys. Rev. Lett. 79,1758 (1997).
[CrossRef]

Phys. Rev. B. (2)

S. Hughes, D.S. Citrin, “Ultrafast heating and switching of a semiconductor optical amplifier using half-cycle terahertz pulses,” Phys. Rev. B. 58(1998).
[CrossRef]

S. Hughes, D.S. Citrin, “The creation of highly anisotropic wavepackets in quantum wells: Dynamical Franz-Keldysh effect in the optical and terahertz regimes,” Phys. Rev. B. 59 (P.R. 15969), (1999).
[CrossRef]

Phys. Rev. Lett. (3)

S.L. Chuang et al., “Optical rectification at semiconductor surfaces,” Phys. Rev. Lett. 68,102 (1992); P.C.M. Planken et al., “Terahertz emission in single quantum-wells after coherent-optical excitation of light hole and heavy hole excitons,” Phys. Rev. Lett. 69,3800 (1992).
[CrossRef] [PubMed]

J.L. Krause et al., “Creating and detecting shaped Rydberg wavepackets,” Phys. Rev. Lett. 79,4978 (1998).
[CrossRef]

A.P. Jauho, K. Johnsen, “Dynamical Franz-Keldysh effect,” Phys. Rev. Lett. 24,4576 (1996).
[CrossRef]

Phys. Stat. Sol. b (1)

K.B. Nordstom et al., “Observation of dynamical Franz-Keldysh effect,” Phys. Stat. Sol. b 204,52 (1997). Using magnetoexcitons: J. Kono et al., “Resonant terahertz optical sideband generation from confined magnetoexcitons,” Phys. Rev. Lett. 79,1758 (1997).
[CrossRef]

Other (1)

S. Hughes, D.S. Citrin, “Two-pulse nondegenerate excitation of electron-hole wavepackets in quantum wells: Tunable terahertz emission,” Opt. Lett., in press.

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Figures (3)

Figure 1
Figure 1

Schematic of the modelled experiment.

Figure 2
Figure 2

The main figure depicts the magnitude of the emitted THz spectra with λ(t) = 2πυTHzt (solid line) and λ(t) = 2pvthzt + p/2 (dashed line). Note that an energy of 40 meV corresponds to a frequency of approximately 10 THz. The inset depicts the temporal behavior of the emitted THz field.

Figure 3
Figure 3

Wavepacket at several times (a: t = 100 fs, b: t = 250 fs, c: t = 400 fs, and d: t = 640 fs) for the polarization density (scaled by 103) with λ(t) = 2πυTHzt.

Equations (1)

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F THz ( t ) = n ˆ x F 0 cos λ ( t ) = n ˆ x F 0 cos ( 2 πυ THz t + ϕ ) ,

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