Abstract

Stable subpicosecond infrared pulses in the spectral region of 4.5–11.5 μm are generated by difference-frequency mixing in AgGaS2. The system uses femtosecond pulses from a Ti:sapphire regenerative amplifier and from a tunable traveling-wave dye laser. The infrared pulses have a duration of 400 fs, an energy of more than 10 nJ, and a repetition rate of 1 kHz.

© 1993 Optical Society of America

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  1. T. Elsässer, A. Seilmeier, W. Kaiser, P. Koidl, G. Brandt, Appl. Phys. Lett. 44, 383 (1984).
    [CrossRef]
  2. H. J. Bakker, J. T. M. Kennis, H. J. Kap, A. Lagendigh, Opt. Commun. 86, 58 (1991).
    [CrossRef]
  3. P. C. M. Planken, E. Snoeks, L. D. Noordam, H. G. Muller, H. B. van den Linden van den Henkell, Opt. Commun. 85, 31 (1991).
    [CrossRef]
  4. D. S. Moore, S. C. Schmidt, Opt. Lett. 12, 480 (1987).
    [CrossRef] [PubMed]
  5. T. Elsässer, M. C. Nuss, Opt. Lett. 16, 411 (1991).
    [CrossRef]
  6. T. M. Jedju, L. Rothberg, Appl. Opt. 27, 615 (1988).
    [CrossRef] [PubMed]
  7. D. E. Spence, P. N. Kean, W. Sibbett, Opt. Lett. 16, 42 (1991).
    [CrossRef] [PubMed]
  8. F. Salin, J. Squier, G. Mourou, G. Vaillancourt, Opt. Lett. 16, 1964 (1991).
    [CrossRef] [PubMed]
  9. M. R. X. Barros, P. C. Becker, Opt. Lett. 18, 631 (1993).
    [CrossRef] [PubMed]
  10. J. Hebling, J. Kuhl, Opt. Lett. 14, 278 (1989).
    [CrossRef] [PubMed]
  11. J. Hebling, J. Kuhl, Opt. Commun. 73, 315 (1989).
    [CrossRef]
  12. J. Hebling, J. Kuhl, Opt. Lett. 15, 1368 (1990).
    [CrossRef] [PubMed]
  13. A. Esser, A. Ewert, T. Zettler, W. Kütt, H. Kurz, in Ultrafast Processes in Spectroscopy, A. Laubereau, A. Seilmeier, eds. (Institute of Physics, Bristol, UK, 1991), p. 299.

1993 (1)

1991 (5)

F. Salin, J. Squier, G. Mourou, G. Vaillancourt, Opt. Lett. 16, 1964 (1991).
[CrossRef] [PubMed]

H. J. Bakker, J. T. M. Kennis, H. J. Kap, A. Lagendigh, Opt. Commun. 86, 58 (1991).
[CrossRef]

P. C. M. Planken, E. Snoeks, L. D. Noordam, H. G. Muller, H. B. van den Linden van den Henkell, Opt. Commun. 85, 31 (1991).
[CrossRef]

D. E. Spence, P. N. Kean, W. Sibbett, Opt. Lett. 16, 42 (1991).
[CrossRef] [PubMed]

T. Elsässer, M. C. Nuss, Opt. Lett. 16, 411 (1991).
[CrossRef]

1990 (1)

1989 (2)

J. Hebling, J. Kuhl, Opt. Lett. 14, 278 (1989).
[CrossRef] [PubMed]

J. Hebling, J. Kuhl, Opt. Commun. 73, 315 (1989).
[CrossRef]

1988 (1)

1987 (1)

1984 (1)

T. Elsässer, A. Seilmeier, W. Kaiser, P. Koidl, G. Brandt, Appl. Phys. Lett. 44, 383 (1984).
[CrossRef]

Bakker, H. J.

H. J. Bakker, J. T. M. Kennis, H. J. Kap, A. Lagendigh, Opt. Commun. 86, 58 (1991).
[CrossRef]

Barros, M. R. X.

Becker, P. C.

Brandt, G.

T. Elsässer, A. Seilmeier, W. Kaiser, P. Koidl, G. Brandt, Appl. Phys. Lett. 44, 383 (1984).
[CrossRef]

Elsässer, T.

T. Elsässer, M. C. Nuss, Opt. Lett. 16, 411 (1991).
[CrossRef]

T. Elsässer, A. Seilmeier, W. Kaiser, P. Koidl, G. Brandt, Appl. Phys. Lett. 44, 383 (1984).
[CrossRef]

Esser, A.

A. Esser, A. Ewert, T. Zettler, W. Kütt, H. Kurz, in Ultrafast Processes in Spectroscopy, A. Laubereau, A. Seilmeier, eds. (Institute of Physics, Bristol, UK, 1991), p. 299.

Ewert, A.

A. Esser, A. Ewert, T. Zettler, W. Kütt, H. Kurz, in Ultrafast Processes in Spectroscopy, A. Laubereau, A. Seilmeier, eds. (Institute of Physics, Bristol, UK, 1991), p. 299.

Hebling, J.

Jedju, T. M.

Kaiser, W.

T. Elsässer, A. Seilmeier, W. Kaiser, P. Koidl, G. Brandt, Appl. Phys. Lett. 44, 383 (1984).
[CrossRef]

Kap, H. J.

H. J. Bakker, J. T. M. Kennis, H. J. Kap, A. Lagendigh, Opt. Commun. 86, 58 (1991).
[CrossRef]

Kean, P. N.

Kennis, J. T. M.

H. J. Bakker, J. T. M. Kennis, H. J. Kap, A. Lagendigh, Opt. Commun. 86, 58 (1991).
[CrossRef]

Koidl, P.

T. Elsässer, A. Seilmeier, W. Kaiser, P. Koidl, G. Brandt, Appl. Phys. Lett. 44, 383 (1984).
[CrossRef]

Kuhl, J.

Kurz, H.

A. Esser, A. Ewert, T. Zettler, W. Kütt, H. Kurz, in Ultrafast Processes in Spectroscopy, A. Laubereau, A. Seilmeier, eds. (Institute of Physics, Bristol, UK, 1991), p. 299.

Kütt, W.

A. Esser, A. Ewert, T. Zettler, W. Kütt, H. Kurz, in Ultrafast Processes in Spectroscopy, A. Laubereau, A. Seilmeier, eds. (Institute of Physics, Bristol, UK, 1991), p. 299.

Lagendigh, A.

H. J. Bakker, J. T. M. Kennis, H. J. Kap, A. Lagendigh, Opt. Commun. 86, 58 (1991).
[CrossRef]

Moore, D. S.

Mourou, G.

Muller, H. G.

P. C. M. Planken, E. Snoeks, L. D. Noordam, H. G. Muller, H. B. van den Linden van den Henkell, Opt. Commun. 85, 31 (1991).
[CrossRef]

Noordam, L. D.

P. C. M. Planken, E. Snoeks, L. D. Noordam, H. G. Muller, H. B. van den Linden van den Henkell, Opt. Commun. 85, 31 (1991).
[CrossRef]

Nuss, M. C.

Planken, P. C. M.

P. C. M. Planken, E. Snoeks, L. D. Noordam, H. G. Muller, H. B. van den Linden van den Henkell, Opt. Commun. 85, 31 (1991).
[CrossRef]

Rothberg, L.

Salin, F.

Schmidt, S. C.

Seilmeier, A.

T. Elsässer, A. Seilmeier, W. Kaiser, P. Koidl, G. Brandt, Appl. Phys. Lett. 44, 383 (1984).
[CrossRef]

Sibbett, W.

Snoeks, E.

P. C. M. Planken, E. Snoeks, L. D. Noordam, H. G. Muller, H. B. van den Linden van den Henkell, Opt. Commun. 85, 31 (1991).
[CrossRef]

Spence, D. E.

Squier, J.

Vaillancourt, G.

van den Linden van den Henkell, H. B.

P. C. M. Planken, E. Snoeks, L. D. Noordam, H. G. Muller, H. B. van den Linden van den Henkell, Opt. Commun. 85, 31 (1991).
[CrossRef]

Zettler, T.

A. Esser, A. Ewert, T. Zettler, W. Kütt, H. Kurz, in Ultrafast Processes in Spectroscopy, A. Laubereau, A. Seilmeier, eds. (Institute of Physics, Bristol, UK, 1991), p. 299.

Appl. Opt. (1)

Appl. Phys. Lett. (1)

T. Elsässer, A. Seilmeier, W. Kaiser, P. Koidl, G. Brandt, Appl. Phys. Lett. 44, 383 (1984).
[CrossRef]

Opt. Commun. (3)

H. J. Bakker, J. T. M. Kennis, H. J. Kap, A. Lagendigh, Opt. Commun. 86, 58 (1991).
[CrossRef]

P. C. M. Planken, E. Snoeks, L. D. Noordam, H. G. Muller, H. B. van den Linden van den Henkell, Opt. Commun. 85, 31 (1991).
[CrossRef]

J. Hebling, J. Kuhl, Opt. Commun. 73, 315 (1989).
[CrossRef]

Opt. Lett. (7)

Other (1)

A. Esser, A. Ewert, T. Zettler, W. Kütt, H. Kurz, in Ultrafast Processes in Spectroscopy, A. Laubereau, A. Seilmeier, eds. (Institute of Physics, Bristol, UK, 1991), p. 299.

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Figures (4)

Fig. 1
Fig. 1

Schematic of the experimental setup used to generate tunable subpicosecond pulses in the midinfrared.

Fig. 2
Fig. 2

Schematic of the two-stage TWDL system. The output of a first TWDL cell is filtered in a grating spectrometer. The spectral portion that is selected by the slit is amplified in a second TWDL stage. BS, beam splitter.

Fig. 3
Fig. 3

Spectral properties of the midinfrared pulses for different wavelengths of the TWDL system and different phase-matching angles of the AgGaS2 crystal. The central wavelength was tuned between 6.5 and 11.5 μm. Only one laser dye (IR 140) was used in this experiment.

Fig. 4
Fig. 4

Results of a pump-and-probe experiment on a thin Si plate. The intensity change of transmitted probing pulses (λpr = 8.0 μm) induced by the generation of hot carriers resulting from an intense near-infrared pulse (λex = 815 nm) is plotted. A cross-correlation time of 450 fs can be deduced from the initial decrease of the signal intensity. The small change of the signal amplitude at longer delay times is presumably due to a fast cooling of the hot carriers.6,13

Tables (1)

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Table 1 Properties of the Traveling-Wave Laser System

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