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11 September 2008 Compression of ultrashort pulses by using refractive elements
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Abstract
Dispersive elements such as prisms modify the temporal characteristics of ultrashort light pulses. In prisms the main effect that modifies the temporal characteristics of the pulse is the group velocity dispersion which can be interpreted as a result of angular dispersion of each of the electromagnetic waves of the pulse and the group velocity dispersion introduced by the glass material constituting the prisms. A model for the compression of ultrashort light pulses is presented for a set of prisms. The model shows how to obtain a good configuration in the laboratory depending on the prism material. Additionally we show that the GVD due to angular dispersion between two parallel surfaces is positive and not negative as is commonly believed. We also show that to achieve pulse compression of an input bandwidth limited pulse in a single right angle prism the reference surface should be curved and not plane as mentioned in reference 1.
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Cristtel Y. Ramírez-Corral, Martha Rosete-Aguilar, Jesús Garduño-Mejía, and Roberto Ortega-Martínez "Compression of ultrashort pulses by using refractive elements", Proc. SPIE 7062, Laser Beam Shaping IX, 706205 (11 September 2008); https://doi.org/10.1117/12.795160
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