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Bandwidth-limited diffraction of femtosecond pulses from photorefractive quantum wells

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5 Author(s)
R. M. Brubaker ; Dept. of Phys., Purdue Univ., West Lafayette, IN, USA ; Yi Ding ; D. D. Nolte ; M. R. Melloch
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The diffraction of 100-fs pulses from the static gratings of photorefractive quantum wells (QWs) produces diffracted pulses that are nearly transform-limited, despite the strong dispersion near the quantum-confined excitonic transitions. This quality makes the QW's candidates for use in femtosecond pulse shaping, although the currently limited bandwidth of the quantum-confined excitonic transitions broadens the diffracted pulses. Femtosecond electric-field cross correlation and spectral interferometry techniques completely characterize the low-intensity pulses diffracted from stand-alone photorefractive QWs, and from QWs placed inside a Fourier-domain femtosecond pulse shaper

Published in:

IEEE Journal of Quantum Electronics  (Volume:33 ,  Issue: 12 )