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<p>the technique of <a href="page.php?w=chirped_pulse_amplification">chirped pulse amplification</a>, in order to avoid damage to the gain medium of the amplifier.</p>

<p>They are characterized by a high peak <a href="page.php?w=intensity_%28physics%29">intensity</a> (or more correctly, <a href="page.php?w=irradiance">irradiance</a>) that usually leads to nonlinear interactions in various materials, including air. These processes are studied in the field of <a href="page.php?w=nonlinear_optics">nonlinear optics</a>.</p>

<p>In the specialized literature,</p><p>
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