作者: Gennady M. Mikheev , Roman Yu. Krivenkov , Tatyana N. Mogileva , Konstantin G. Mikheev , Nicholas Nunn
关键词: Detonation 、 Ray 、 Materials science 、 Wavelength 、 Irradiation 、 Saturable absorption 、 Analytical chemistry 、 Saturation (magnetic) 、 Optical medium 、 Absorption (electromagnetic radiation)
摘要: Highly nonlinear optical properties of nanocarbon materials make them perspective candidates for saturable absorption (SA) applications, characterized by a short-term decrease in the medium at high incident light intensity. The and SA aqueous suspensions 5 nm detonation nanodiamonds (DNDs) have been studied z-scan technique under irradiation with nanosecond laser pulses wavelengths 532 1064 nm. saturation intensity coefficient describing were obtained concentrations DND ranging between 0.5 wt %. It was concluded that single-digit are suitable limiting only relatively intensities radiation, ∼5.9 14.1 MW/cm2 excitation, respectively.