Thermal and Optical Characteristics of Dielectrics in Intense Radiation Field. On Reflection Factor of Laser Radiation for Ablating Dielectrics

Results are given of the experimental determination of reflection factors of laser radiation at standard frequencies (λ₁ ~ 10.6 μm, λ₂ ~ 1.06 μm, λ₃ ~ 0.69 μm, λ₄ ~ 0.241 μm) during the reflection from dielectric polymeric targets (C–H–O–N–F) having the complex chemical composition under vacuum within the range of the coherent radiation power densities (I₀ ~ 10⁴...10⁷ W/cm²) being thresholds for creating a wave of the developed vaporization.