Abstract

We demonstrate a new scanning femtosecond pulse-shaping technique that allows pulse shapes to be modulated at kilohertz rates. This technique is particularly useful for lock-in measurements in which the signal is synchronized with the alternating pulse shapes. The pulse-shape lock-in technique is demonstrated in resonant coherent anti-Stokes Raman scattering, where it is shown to significantly improve the ratio of the resonant signal to both the nonresonant background and to noise.

© 2004 Optical Society of America

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2003 (1)

P. Tian, D. Keusters, Y. Suzaki, and W. S. Warren, Science 300, 1553 (2003).
[CrossRef] [PubMed]

2002 (1)

N. Dudovich, D. Oron, and Y. Silberberg, Nature 418, 512 (2002).
[CrossRef] [PubMed]

2001 (2)

T. Brixner and G. Gerber, Opt. Lett. 26, 557 (2001).
[CrossRef]

J. Cheng, A. Volkmer, L. D. Book, and X. S. Xie, J. Phys. Chem. B 105, 1277 (2001).

2000 (2)

1999 (1)

1997 (1)

1994 (1)

1993 (1)

1990 (2)

A. M. Weiner, D. E. Leaird, J. S. Patel, and J. R. Wullert, Opt. Lett. 15, 326 (1990).
[CrossRef]

A. M. Weiner, D. E. Leaird, G. P. Wiederrecht, and K. A. Nelson, Science 247, 1317 (1990).
[CrossRef] [PubMed]

Backus, S.

Book, L. D.

J. Cheng, A. Volkmer, L. D. Book, and X. S. Xie, J. Phys. Chem. B 105, 1277 (2001).

Bouma, B. E.

Brixner, T.

Cheng, J.

J. Cheng, A. Volkmer, L. D. Book, and X. S. Xie, J. Phys. Chem. B 105, 1277 (2001).

Cheng, Z.

Chu, K.

Dienes, A.

Dudovich, N.

N. Dudovich, D. Oron, and Y. Silberberg, Nature 418, 512 (2002).
[CrossRef] [PubMed]

Fujimoto, J. G.

Gerber, G.

Goswami, D.

Heritage, J.

Hillegas, C. W.

Kapteyn, H.

Keusters, D.

P. Tian, D. Keusters, Y. Suzaki, and W. S. Warren, Science 300, 1553 (2003).
[CrossRef] [PubMed]

Kwong, K.

Laude, V.

Leaird, D. E.

A. M. Weiner, D. E. Leaird, G. P. Wiederrecht, and K. A. Nelson, Science 247, 1317 (1990).
[CrossRef] [PubMed]

A. M. Weiner, D. E. Leaird, J. S. Patel, and J. R. Wullert, Opt. Lett. 15, 326 (1990).
[CrossRef]

Maginnis, K.

Mourou, G.

Murnane, M.

Nelson, K. A.

A. M. Weiner, D. E. Leaird, G. P. Wiederrecht, and K. A. Nelson, Science 247, 1317 (1990).
[CrossRef] [PubMed]

Oron, D.

N. Dudovich, D. Oron, and Y. Silberberg, Nature 418, 512 (2002).
[CrossRef] [PubMed]

Patel, J. S.

Russek, U.

Silberberg, Y.

N. Dudovich, D. Oron, and Y. Silberberg, Nature 418, 512 (2002).
[CrossRef] [PubMed]

Spielmann, Ch.

Strickland, D.

Suzaki, Y.

P. Tian, D. Keusters, Y. Suzaki, and W. S. Warren, Science 300, 1553 (2003).
[CrossRef] [PubMed]

Tearney, G. J.

Tian, P.

P. Tian, D. Keusters, Y. Suzaki, and W. S. Warren, Science 300, 1553 (2003).
[CrossRef] [PubMed]

Tournois, P.

Tull, J. X.

Vdovin, G.

Verluise, F.

Volkmer, A.

J. Cheng, A. Volkmer, L. D. Book, and X. S. Xie, J. Phys. Chem. B 105, 1277 (2001).

Warren, W. S.

Weiner, A. M.

A. M. Weiner, Rev. Sci. Instrum. 71, 1929 (2000).
[CrossRef]

A. M. Weiner, D. E. Leaird, J. S. Patel, and J. R. Wullert, Opt. Lett. 15, 326 (1990).
[CrossRef]

A. M. Weiner, D. E. Leaird, G. P. Wiederrecht, and K. A. Nelson, Science 247, 1317 (1990).
[CrossRef] [PubMed]

Wiederrecht, G. P.

A. M. Weiner, D. E. Leaird, G. P. Wiederrecht, and K. A. Nelson, Science 247, 1317 (1990).
[CrossRef] [PubMed]

Wullert, J. R.

Xie, X. S.

J. Cheng, A. Volkmer, L. D. Book, and X. S. Xie, J. Phys. Chem. B 105, 1277 (2001).

Yankelevich, D.

Zeek, E.

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Figures (3)

Fig. 1
Fig. 1

Schematic representation of the scanning shaper. Inset, lithographic mask for the two-dimensional reflective phase filter.

Fig. 2
Fig. 2

SHG measurement with modulated pulse shapes at a rate of 2.5 kHz. (a) SHG signal. The mirror oscillates the spectrum between flat and modulated regions on the phase mask. (b) Scanning mirror angular position.

Fig. 3
Fig. 3

Experimental CARS measurements of iodomethane (a single resonance at 523 cm-1). (a) Circular data points, CARS signal as a function of mask position, when scanning mirror is not moving; triangular data points, CARS signal with lock-in on the pulse shape. Small angle (0.08° amplitude scanning mirror modulation at 1000 Hz). (b) Lock-in CARS as a function of the scanning amplitude.

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