Second harmonic generation of femtosecond radiation from a Cr:forsterite laser in a nonlinear-optical crystal at the plasma-formation thresholdстатья
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Дата последнего поиска статьи во внешних источниках: 1 апреля 2022 г.
Аннотация:The second harmonic generation in KDP and LiNbO3 crystals exposed to tightly focused radiation from a Cr:forsterite laser is studied. The negative influence exerted on this process by a plasma produced due to multiphoton ionisation in the focal region at laser pulse intensities above 1013 W cm-2 is discussed.