Abstract

We demonstrate the coherent nature of dynamic Rabi-shifted sidebands arising when a picosecond probe laser interacts with a weakly ionized laser-generated microplasma. The coherence is manifested as spectral fringes observed in the sideband spectra. A model is presented that quantitatively predicts both the spectral phase and the spectral interference measured in the sidebands.

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References

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  1. I. I. Rabi, Phys. Rev. 51, 652 (1937).
    [CrossRef]
  2. H. M. Gibbs, Phys. Rev. Lett. 29, 459 (1972).
    [CrossRef]
  3. R. W. Boyd, Nonlinear Optics, 3rd ed. (Academic, 2008), p. 640.
  4. B. R. Mollow, Phys. Rev. 188, 1969 (1969).
    [CrossRef]
  5. F. Y. Wu, R. E. Grove, and S. Ezekiel, Phys. Rev. Lett. 35, 1426 (1975).
    [CrossRef]
  6. R. Compton, A. Filin, D. A. Romanov, and R. J. Levis, Phys. Rev. Lett. 103, 205001 (2009).
    [CrossRef]
  7. A. E. Siegman, Lasers (University Science, 1986).

2009 (1)

R. Compton, A. Filin, D. A. Romanov, and R. J. Levis, Phys. Rev. Lett. 103, 205001 (2009).
[CrossRef]

1975 (1)

F. Y. Wu, R. E. Grove, and S. Ezekiel, Phys. Rev. Lett. 35, 1426 (1975).
[CrossRef]

1972 (1)

H. M. Gibbs, Phys. Rev. Lett. 29, 459 (1972).
[CrossRef]

1969 (1)

B. R. Mollow, Phys. Rev. 188, 1969 (1969).
[CrossRef]

1937 (1)

I. I. Rabi, Phys. Rev. 51, 652 (1937).
[CrossRef]

Boyd, R. W.

R. W. Boyd, Nonlinear Optics, 3rd ed. (Academic, 2008), p. 640.

Compton, R.

R. Compton, A. Filin, D. A. Romanov, and R. J. Levis, Phys. Rev. Lett. 103, 205001 (2009).
[CrossRef]

Ezekiel, S.

F. Y. Wu, R. E. Grove, and S. Ezekiel, Phys. Rev. Lett. 35, 1426 (1975).
[CrossRef]

Filin, A.

R. Compton, A. Filin, D. A. Romanov, and R. J. Levis, Phys. Rev. Lett. 103, 205001 (2009).
[CrossRef]

Gibbs, H. M.

H. M. Gibbs, Phys. Rev. Lett. 29, 459 (1972).
[CrossRef]

Grove, R. E.

F. Y. Wu, R. E. Grove, and S. Ezekiel, Phys. Rev. Lett. 35, 1426 (1975).
[CrossRef]

Levis, R. J.

R. Compton, A. Filin, D. A. Romanov, and R. J. Levis, Phys. Rev. Lett. 103, 205001 (2009).
[CrossRef]

Mollow, B. R.

B. R. Mollow, Phys. Rev. 188, 1969 (1969).
[CrossRef]

Rabi, I. I.

I. I. Rabi, Phys. Rev. 51, 652 (1937).
[CrossRef]

Romanov, D. A.

R. Compton, A. Filin, D. A. Romanov, and R. J. Levis, Phys. Rev. Lett. 103, 205001 (2009).
[CrossRef]

Siegman, A. E.

A. E. Siegman, Lasers (University Science, 1986).

Wu, F. Y.

F. Y. Wu, R. E. Grove, and S. Ezekiel, Phys. Rev. Lett. 35, 1426 (1975).
[CrossRef]

Phys. Rev. (2)

B. R. Mollow, Phys. Rev. 188, 1969 (1969).
[CrossRef]

I. I. Rabi, Phys. Rev. 51, 652 (1937).
[CrossRef]

Phys. Rev. Lett. (3)

H. M. Gibbs, Phys. Rev. Lett. 29, 459 (1972).
[CrossRef]

F. Y. Wu, R. E. Grove, and S. Ezekiel, Phys. Rev. Lett. 35, 1426 (1975).
[CrossRef]

R. Compton, A. Filin, D. A. Romanov, and R. J. Levis, Phys. Rev. Lett. 103, 205001 (2009).
[CrossRef]

Other (2)

A. E. Siegman, Lasers (University Science, 1986).

R. W. Boyd, Nonlinear Optics, 3rd ed. (Academic, 2008), p. 640.

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Figures (2)

Fig. 1
Fig. 1

Dependence of the blueshifted Rabi sideband versus probe beam power and photon energy. The upper three panels show the comparison of the simulated spectra (gray curves) with measured spectra (black curves). The stepped function in the second panel demonstrates the spectral phase for the blueshifted Rabi sideband (left-side scale). The inset in the first panel shows the Fourier transform of the simulated spectrum for a flat phase (for 1.0 mW). The fourth panel shows the modeled spectral intensity plot of Rabi sidebands as a function of probe beam power.

Fig. 2
Fig. 2

Origin of the temporal features of the Rabi sidebands. The upper panel shows the simulated instantaneous frequency for redshifted and blueshifted bands (gray and black curves, respectively). The horizontal dotted line corresponds to ω c . The lower panel shows the temporal intensity (shadowed curve) and temporal phase for red and blueshifted Rabi bands (gray and black curves, respectively).

Equations (3)

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ϕ ( t ) = ( ω c ± Ω ( t ) ) d t = ω c t ± Ω ( t ) d t .
A RS ( t ) = M 10 Ω ( t ) A 0 ( t ) Ω ( t ) ( Δ Ω ( t ) ± 1 ) .
E ( ω ) = A RS ( t ) e i ϕ ( t ) e i ω t d t = M 10 A 0 ( t ) Ω ( t ) Ω ( t ) ( Δ / Ω ( t ) ± 1 ) exp ( i ( ω c ω ) t ± i t Ω ( t ) d t ) d t .

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