Abstract

Frequency detuning as a result of self-phase modulation that exceeds by four times the primary laser frequency is demonstrated. The white light, ranging from the IR to 150 nm, was generated by a self-trapped femtosecond Ti:Al2O3 laser pulse in atmospheric-pressure rare gases. Spectral intensities in the UV and the visible regions are 100 MW/nm and 1 GW/nm, respectively. The beam divergence was measured to be 1 mrad.

© 1995 Optical Society of America

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References

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1995 (1)

1994 (2)

1990 (1)

1986 (2)

J. H. Glownia, J. Misewich, P. P. Sorokin, J. Opt. Soc. Am. B 3, 1573 (1986).
[Crossref]

P. B. Corkum, C. Rolland, T. Srinivasan-Rao, Phys. Rev. Lett. 57, 2268 (1986).
[Crossref] [PubMed]

1985 (1)

H. J. Lehmeier, W. Leupacher, A. Penzkofer, Opt. Commun. 56, 67 (1985).
[Crossref]

1983 (1)

1970 (2)

R. R. Alfano, S. L. Shapiro, Phys. Rev. Lett. 24, 584 (1970).
[Crossref]

R. R. Alfano, S. L. Shapiro, Phys. Rev. Lett. 24, 592 (1970).
[Crossref]

1967 (1)

F. Shimizu, Phys. Rev. Lett. 19, 1097 (1967).
[Crossref]

Alfano, R. R.

R. R. Alfano, S. L. Shapiro, Phys. Rev. Lett. 24, 592 (1970).
[Crossref]

R. R. Alfano, S. L. Shapiro, Phys. Rev. Lett. 24, 584 (1970).
[Crossref]

Braun, A.

Corkum, P. B.

D. Strickland, P. B. Corkum, J. Opt. Soc. Am. B 11, 492 (1994).
[Crossref]

P. B. Corkum, C. Rolland, T. Srinivasan-Rao, Phys. Rev. Lett. 57, 2268 (1986).
[Crossref] [PubMed]

Du, D.

Fork, R. L.

Glownia, J. H.

Gosnell, T. R.

Greene, D. P.

Hirlimann, C.

Korn, G.

Lehmeier, H. J.

H. J. Lehmeier, W. Leupacher, A. Penzkofer, Opt. Commun. 56, 67 (1985).
[Crossref]

Leupacher, W.

H. J. Lehmeier, W. Leupacher, A. Penzkofer, Opt. Commun. 56, 67 (1985).
[Crossref]

Liu, X.

Misewich, J.

Mourou, G.

Penzkofer, A.

H. J. Lehmeier, W. Leupacher, A. Penzkofer, Opt. Commun. 56, 67 (1985).
[Crossref]

Roberts, J. P.

Rodriguez, G.

Rolland, C.

P. B. Corkum, C. Rolland, T. Srinivasan-Rao, Phys. Rev. Lett. 57, 2268 (1986).
[Crossref] [PubMed]

Shank, C. V.

Shapiro, S. L.

R. R. Alfano, S. L. Shapiro, Phys. Rev. Lett. 24, 592 (1970).
[Crossref]

R. R. Alfano, S. L. Shapiro, Phys. Rev. Lett. 24, 584 (1970).
[Crossref]

Shimizu, F.

F. Shimizu, Phys. Rev. Lett. 19, 1097 (1967).
[Crossref]

Sorokin, P. P.

Squier, J.

Srinivasan-Rao, T.

P. B. Corkum, C. Rolland, T. Srinivasan-Rao, Phys. Rev. Lett. 57, 2268 (1986).
[Crossref] [PubMed]

Strickland, D.

Taylor, A. J.

Yen, R.

J. Opt. Soc. Am. B (2)

Opt. Commun. (1)

H. J. Lehmeier, W. Leupacher, A. Penzkofer, Opt. Commun. 56, 67 (1985).
[Crossref]

Opt. Lett. (4)

Phys. Rev. Lett. (4)

F. Shimizu, Phys. Rev. Lett. 19, 1097 (1967).
[Crossref]

P. B. Corkum, C. Rolland, T. Srinivasan-Rao, Phys. Rev. Lett. 57, 2268 (1986).
[Crossref] [PubMed]

R. R. Alfano, S. L. Shapiro, Phys. Rev. Lett. 24, 592 (1970).
[Crossref]

R. R. Alfano, S. L. Shapiro, Phys. Rev. Lett. 24, 584 (1970).
[Crossref]

Other (1)

R. R. Alfano, ed., The Supercontinuum Laser Source (Springer-Verlag, New York, 1989).

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Figures (5)

Fig. 1
Fig. 1

Spectral modulation of a single-shot continuum. The center wavelength and the horizontal scale are given for each figure.

Fig. 2
Fig. 2

Period of spectral modulation in the single-shot continuum as a function of the frequency shift.

Fig. 3
Fig. 3

Far-field patterns spectrally integrated for 300–700 nm.

Plate I
Plate I

Spatial mode patterns of the white light slightly above the threshold of self-trapping with laser powers of (a) 0.17 TW, (b) 0.52 TW, and (c) 1.6 TW. These pictures were taken 5 m from the focus of an f = 5 m lens. The beam diameter is 4 cm in (c).

Plate II
Plate II

Spectral intensity as a function of wavelength in atmospheric-pressure rare gases. The laser power is 1.6 TW.

Tables (1)

Tables Icon

Table 1 Nonlinear Refractive Indices of Rare Gases

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