Abstract

We developed a novel femtosecond Sagnac interferometer that enables us to take single-shot measurements of both the difference transmission and the difference phase spectra. Owing to the excellent stability of the Sagnac interferometer, a difference phase spectrum was obtained with a high phase change sensitivity of ~λ/100 after a 1000-shot accumulation. The spectral range, wavelength, and time resolution were 530– 650 nm, 1 nm, and 200 fs, respectively.

© 1995 Optical Society of America

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References

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E. Tokunaga, A. Terasaki, T. Kobayashi, Opt. Lett. 18, 370 (1993).
[Crossref] [PubMed]

E. Tokunaga, A. Terasaki, T. Kobayashi, Phys. Rev. A 47, 4581 (1993).

1992 (1)

1991 (3)

1989 (3)

1986 (1)

1982 (1)

J. M. Halbout, C. L. Tang, Appl. Phys. Lett. 40, 765 (1982).
[Crossref]

Ainslie, B. J.

Alfano, R. R.

Anderson, K. K.

M. J. LaGasse, K. K. Anderson, H. A. Haus, J. G. Fujimoto, Appl. Phys. Lett. 54, 2068 (1989).
[Crossref]

Banyai, W. C.

Cotter, D.

Dirk, C. W.

Eichmann, G.

Finlayson, N.

Fujimoto, J. G.

M. J. LaGasse, K. K. Anderson, H. A. Haus, J. G. Fujimoto, Appl. Phys. Lett. 54, 2068 (1989).
[Crossref]

Gabriel, M. C.

Girdlestone, H. P.

Halbout, J. M.

J. M. Halbout, C. L. Tang, Appl. Phys. Lett. 40, 765 (1982).
[Crossref]

Haus, H. A.

M. J. LaGasse, K. K. Anderson, H. A. Haus, J. G. Fujimoto, Appl. Phys. Lett. 54, 2068 (1989).
[Crossref]

Hayden, C. C.

Ironside, C. N.

Kobayashi, T.

Kuzyk, M. G.

LaGasse, M. J.

M. J. LaGasse, K. K. Anderson, H. A. Haus, J. G. Fujimoto, Appl. Phys. Lett. 54, 2068 (1989).
[Crossref]

Li, Y.

Minoshima, K.

Seaton, C. T.

Stegeman, G. I.

Taiji, M.

Tang, C. L.

J. M. Halbout, C. L. Tang, Appl. Phys. Lett. 40, 765 (1982).
[Crossref]

Terasaki, A.

Thakur, M.

Tokunaga, E.

Trebino, R.

Whitaker, N. A.

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Figures (4)

Fig. 1
Fig. 1

(a) Experimental setup of the femtosecond SI: BS, beam splitter. (b) Time course of the excitation, reference, and probe pulses at the sample position.

Fig. 2
Fig. 2

Spectrointerferograms at time delays of (a) −2000, (b) −300, (c) 0, and (d) 300 fs detected with a CCD camera. The bright and dark lines represent the fringe peaks and valleys, respectively.

Fig. 3
Fig. 3

Time-resolved DPS of CS2 measured at several time delays. The spectral shift with the time delay is due to the chirp of the white continuum.

Fig. 4
Fig. 4

Time dependence of the phase change in CS2 at 590 nm. The solid curve represents the decay profile fitted with a sum of two exponential functions. The decay time constants of these components are 360 ± 80 fs and 1.7 ± 0.6 ps.

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