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Science 17 August 2001:
Vol. 293. no. 5533, pp. 1265 - 1267
DOI: 10.1126/science.1064465
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Perspectives

LASER PHYSICS:
Getting to Grips with Light

Tom Brown, Wilson Sibbett, Ewan M. Wright

Laser fields may in principle be tailored to specific applications in wavelength and pulse duration through combining two different laser pulses, but as Brown et al. explain in their Perspective, achieving this goal is far from simple. Shelton et al. have made an important step toward this goal. Their combined laser may be viewed as a single "superpulse" with a broader range of wavelengths than either of the two individual pulses.

The authors are at the Ultrafast Photonics Collaboration, School of Physics and Astronomy, University of St. Andrews, St. Andrews, Fife KY16 9SS, UK, and at the Optical Sciences Center, University of Arizona, Tucson, AZ 85721, USA. E-mail: ctab{at}st-andrews.ac.uk

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Science. ISSN 0036-8075 (print), 1095-9203 (online)