Cross-correlation technique for single-shot measurements of weak light pulses
Optics Letters, Vol. 20, Issue 4, pp. 407-409 (1995)
http://dx.doi.org/10.1364/OL.20.000407
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Abstract
We have developed and demonstrated a simple, single-shot method to measure the duration of a weak ultrafast pulse. The density of free electrons in a semiconductor is changed by a pump beam, causing a time-dependent variation of the refractive index, which in turn determines the spatial distribution of the reflected probe-beam intensity. The derivative of the spatial distribution in the transition region is a cross correlation of the pump and probe pulses. This technique is suitable for measuring weak pulses such as low-level synchrotron light in the mid-infrared-to-far-infrared range.
© 1995 Optical Society of America
Citation
L. Zheng and D. D. Meyerhofer, "Cross-correlation technique for single-shot measurements of weak light pulses," Opt. Lett. 20, 407-409 (1995)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-20-4-407
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