Third harmonic generation in double-pulse laser induced air plasma

Lev Nagli, Michael Gaft, Yosef Raichlin

نتاج البحث: نشر في مجلةمقالةمراجعة النظراء

ملخص

We found a fast hydrodynamic process in air double pulse Laser Induced Plasma (LIP) during the first 50 ns of plasma life. This process leads to strong inhomogeneity in the refractive index of air LIP, disturbance in the Gouy phase shift, and an increase in Third Harmonic Generation (THG). The efficiency of THG strongly depends on the confocal parameter of the focusing beam. The decrease in the focus of the pumping lens, despite the increase in the pump intensity, leads to a decrease in TH intensity. This can be attributed to the change from weak to tight focusing conditions in THG.

اللغة الأصليةالإنجليزيّة
الصفحات (من إلى)63-68
عدد الصفحات6
دوريةOptics Communications
مستوى الصوت443
المعرِّفات الرقمية للأشياء
حالة النشرنُشِر - 15 يوليو 2019

All Science Journal Classification (ASJC) codes

  • !!Electronic, Optical and Magnetic Materials
  • !!Atomic and Molecular Physics, and Optics
  • !!Physical and Theoretical Chemistry
  • !!Electrical and Electronic Engineering

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