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Optics Letters

Optics Letters


  • Vol. 20, Iss. 9 — May. 1, 1995
  • pp: 1038–1040

Measurement of femtosecond pulses in the focal point of a high-numerical-aperture lens by two-photon absorption

M. Müller, J. Squier, and G. J. Brakenhoff  »View Author Affiliations

Optics Letters, Vol. 20, Issue 9, pp. 1038-1040 (1995)

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We demonstrate a method for the measurement of femtosecond optical pulses in the focal point of a high-NA lens, using interferometric autocorrelation through two-photon absorption. A chirp-free input pulse of 47 fs is found to broaden by ≈50% after focusing by a well-compensated objective. With proper prechirp compensation, the actual pulse width in the focus of such a lens system can be restored to (almost) its initial value. The unique value of the presented two-photon autocorrelation technique is its capability of measuring the actual pulse width at the focal point of a high-NA lens, an aspect that is of direct importance to two-photon imaging approaches, for example.

© 1995 Optical Society of America

Original Manuscript: September 12, 1994
Published: May 1, 1995

M. Müller, J. Squier, and G. J. Brakenhoff, "Measurement of femtosecond pulses in the focal point of a high-numerical-aperture lens by two-photon absorption," Opt. Lett. 20, 1038-1040 (1995)

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  1. P. F. Curley, A. I. Ferguson, J. G. White, W. B. Amos, Opt. Quantum Electron. 24, 851 (1992). [CrossRef]
  2. W. Denk, J. H. Strickler, W. W. Webb, Science 248, 73 (1990). [CrossRef] [PubMed]
  3. D. W. Piston, D. R. Sandison, W. W. Webb, Proc. Soc. Photo-Opt. Instrum. Eng. 1640, 379 (1992).
  4. D. W. Piston, M. S. Kirby, H. Cheng, W. J. Lederer, W. W. Webb, Appl. Opt. 33, 662 (1994). [CrossRef] [PubMed]
  5. G. J. Brakenhoff, H. T. M. v. d. Voort, E. A. v. Spronsen, W. A. Linnemans, N. Nanninga, Nature (London) 317, 748 (1985). [CrossRef] [PubMed]
  6. Z. L. Horvath, Z. Bor, Opt. Commun. 108, 333 (1994). [CrossRef]
  7. R. L. Fork, O. E. Martinez, J. P. Gordon, Opt. Lett. 9, 150 (1984). [CrossRef] [PubMed]
  8. J. M. Diels, J. J. Fontaine, I. C. McMichael, F. Simoni, Appl. Opt. 24, 1270 (1985). [CrossRef] [PubMed]
  9. S. Hell, G. Reiner, C. Cremer, E. H. K. Stelzer, J. Microsc. 169, 391 (1993). [CrossRef]

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