Abstract

A simple method is demonstrated for high-sensitivity, chirp-free measurements of femtosecond (fs) transient absorption over the entire bandwidth of a white-light continuum probe. This technique uses phase-sensitive detection, with spectral scanning and simultaneous adjustment of the time delay between pump and probe pulses; it permits a direct measurement of spectra undistorted by chirp at all time scales, limited only by the resolution of the fs source. The method is applied to study the ultrafast relaxation dynamics of π-conjugated oligomers and semiconductor nanocrystals.

© 1998 Optical Society of America

Full Article  |  PDF Article

References

  • View by:
  • |
  • |
  • |

  1. W. Kaiser, ed., Ultrashort Laser Pulses:?Generation and Applications (Springer-Verlag, Berlin, 1993).
  2. R. L. Fork, C. V. Shank, C. Hirlimann, and R. Yen, Opt. Lett. 8, 1 (1983).
    [CrossRef] [PubMed]
  3. C. H. B. Cruz, P. C. Becker, R. L. Fork, and C. V. Shank, Opt. Lett. 13, 123 (1988).
    [CrossRef]
  4. Q. Wang, R. W. Schoenlein, L. A. Peteanu, R. Mathies, and C. V. Shank, Science 266, 422 (1994).
    [CrossRef] [PubMed]
  5. T. F. Albrecht, K. Seibert, and H. Kurz, Opt. Commun. 84, 223 (1991).
    [CrossRef]
  6. D. J. Kane and R. Trebino, Opt. Lett. 18, 823 (1993).
    [CrossRef] [PubMed]
  7. V. Klimov, D. McBranch, N. Barashkov, and J. Ferraris, Chem. Phys. Lett. 277, 109 (1997).
    [CrossRef]
  8. A. L. Efros, V. A. Kharchenko, and M. Rosen, Solid State Commun. 93, 281 (1995).
    [CrossRef]
  9. V. Klimov, S. Hunsche, and H. Kurz, Phys. Rev. B 50, 8110 (1994).
    [CrossRef]

1997 (1)

V. Klimov, D. McBranch, N. Barashkov, and J. Ferraris, Chem. Phys. Lett. 277, 109 (1997).
[CrossRef]

1995 (1)

A. L. Efros, V. A. Kharchenko, and M. Rosen, Solid State Commun. 93, 281 (1995).
[CrossRef]

1994 (2)

V. Klimov, S. Hunsche, and H. Kurz, Phys. Rev. B 50, 8110 (1994).
[CrossRef]

Q. Wang, R. W. Schoenlein, L. A. Peteanu, R. Mathies, and C. V. Shank, Science 266, 422 (1994).
[CrossRef] [PubMed]

1993 (1)

1991 (1)

T. F. Albrecht, K. Seibert, and H. Kurz, Opt. Commun. 84, 223 (1991).
[CrossRef]

1988 (1)

1983 (1)

Albrecht, T. F.

T. F. Albrecht, K. Seibert, and H. Kurz, Opt. Commun. 84, 223 (1991).
[CrossRef]

Barashkov, N.

V. Klimov, D. McBranch, N. Barashkov, and J. Ferraris, Chem. Phys. Lett. 277, 109 (1997).
[CrossRef]

Becker, P. C.

Cruz, C. H. B.

Efros, A. L.

A. L. Efros, V. A. Kharchenko, and M. Rosen, Solid State Commun. 93, 281 (1995).
[CrossRef]

Ferraris, J.

V. Klimov, D. McBranch, N. Barashkov, and J. Ferraris, Chem. Phys. Lett. 277, 109 (1997).
[CrossRef]

Fork, R. L.

Hirlimann, C.

Hunsche, S.

V. Klimov, S. Hunsche, and H. Kurz, Phys. Rev. B 50, 8110 (1994).
[CrossRef]

Kane, D. J.

Kharchenko, V. A.

A. L. Efros, V. A. Kharchenko, and M. Rosen, Solid State Commun. 93, 281 (1995).
[CrossRef]

Klimov, V.

V. Klimov, D. McBranch, N. Barashkov, and J. Ferraris, Chem. Phys. Lett. 277, 109 (1997).
[CrossRef]

V. Klimov, S. Hunsche, and H. Kurz, Phys. Rev. B 50, 8110 (1994).
[CrossRef]

Kurz, H.

V. Klimov, S. Hunsche, and H. Kurz, Phys. Rev. B 50, 8110 (1994).
[CrossRef]

T. F. Albrecht, K. Seibert, and H. Kurz, Opt. Commun. 84, 223 (1991).
[CrossRef]

Mathies, R.

Q. Wang, R. W. Schoenlein, L. A. Peteanu, R. Mathies, and C. V. Shank, Science 266, 422 (1994).
[CrossRef] [PubMed]

McBranch, D.

V. Klimov, D. McBranch, N. Barashkov, and J. Ferraris, Chem. Phys. Lett. 277, 109 (1997).
[CrossRef]

Peteanu, L. A.

Q. Wang, R. W. Schoenlein, L. A. Peteanu, R. Mathies, and C. V. Shank, Science 266, 422 (1994).
[CrossRef] [PubMed]

Rosen, M.

A. L. Efros, V. A. Kharchenko, and M. Rosen, Solid State Commun. 93, 281 (1995).
[CrossRef]

Schoenlein, R. W.

Q. Wang, R. W. Schoenlein, L. A. Peteanu, R. Mathies, and C. V. Shank, Science 266, 422 (1994).
[CrossRef] [PubMed]

Seibert, K.

T. F. Albrecht, K. Seibert, and H. Kurz, Opt. Commun. 84, 223 (1991).
[CrossRef]

Shank, C. V.

Trebino, R.

Wang, Q.

Q. Wang, R. W. Schoenlein, L. A. Peteanu, R. Mathies, and C. V. Shank, Science 266, 422 (1994).
[CrossRef] [PubMed]

Yen, R.

Chem. Phys. Lett. (1)

V. Klimov, D. McBranch, N. Barashkov, and J. Ferraris, Chem. Phys. Lett. 277, 109 (1997).
[CrossRef]

Opt. Commun. (1)

T. F. Albrecht, K. Seibert, and H. Kurz, Opt. Commun. 84, 223 (1991).
[CrossRef]

Opt. Lett. (3)

Phys. Rev. B (1)

V. Klimov, S. Hunsche, and H. Kurz, Phys. Rev. B 50, 8110 (1994).
[CrossRef]

Science (1)

Q. Wang, R. W. Schoenlein, L. A. Peteanu, R. Mathies, and C. V. Shank, Science 266, 422 (1994).
[CrossRef] [PubMed]

Solid State Commun. (1)

A. L. Efros, V. A. Kharchenko, and M. Rosen, Solid State Commun. 93, 281 (1995).
[CrossRef]

Other (1)

W. Kaiser, ed., Ultrashort Laser Pulses:?Generation and Applications (Springer-Verlag, Berlin, 1993).

Cited By

OSA participates in CrossRef's Cited-By Linking service. Citing articles from OSA journals and other participating publishers are listed here.

Alert me when this article is cited.


Figures (3)

Fig. 1
Fig. 1

Chirp of the probe pulse measured by TPA cross correlation with a reference pulse at 800 nm in 1-mm ZnS (squares) and 0.1-mm CdS (crosses) or 400 nm in 1-mm sapphire (circles). The solid curve is a fit (see text). Top inset, continuum intensity versus λ. Bottom inset, TPA cross correlation continuum+800 nm at 550 (crosses), 650 (triangles), and 750 nm (squares). The solid curve is a fit to a Gaussian pulse with FWHM 140 fs.

Fig. 2
Fig. 2

DT spectra of MEH-DSB measured at (a) 300 fs and (b) 800 fs after excitation by use of a CCD camera (solid curves) and chirp-free spectral scanning (triangles). Inset, DT dynamics at 780 nm, showing a standard deviation of 1.4×10-5.

Fig. 3
Fig. 3

Comparison of DT spectra of CdSe NC's measured in scanning mode with (squares) and without (crosses) chirp correction. Solid curves, fits to a model describing the population redistribution between B1 and B2 transitions.

Metrics