Ultrafast Four-Wave Optical Parametric Amplification in Transparent Condensed Bulk Media

<table>Geometrical beam arrangement in the FWOPA
using cylindrical beam focusing. <svg height="16.450001" id="M41" style="vertical-align:-3.39069pt" version="1.1" viewbox="0 0 23.512501 16.450001" width="23.512501" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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</svg> is the external phase matching angle, <svg height="16.450001" id="M42" style="vertical-align:-3.39069pt" version="1.1" viewbox="0 0 59.9375 16.450001" width="59.9375" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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</svg>. CL1 and CL2 are cylindrical lenses for beam focusing and restoring,
respectively.</table>

Laser Chemistry

fig2

Figure 2

Figure 2: Ultrafast Four-Wave Optical Parametric Amplification in Transparent Condensed Bulk Media 