NONLINEAR REFRACTIVE INDEX OF VANADATE CRYSTALS IN THE NEAR IR REGION

作者：Vodchits A I^*; Orlovich V A; Apanasevich P A

来源：Journal of Applied Spectroscopy, 2012, 78(6): 918-921.

• nonlinear refraction
• nonlinear absorption
• nonlinear refractive index
• Z-scan method
• picosecond pulse
• stimulated Raman scattering (SRS)
• Raman laser
• crystal
• vanadates

We used the single-beam Z-scan method, employing picosecond laser pulses with lambda = 1064 nm, to measure the nonlinear refractive index and nonlinear absorption in vanadate crystals, which are promising for design of laser sources. We have established that there is practically no nonlinear absorption in these crystals in the near IR range and that doping them with neodymium ions leads to a significant reduction in the nonlinear refraction. This effect can be used to partially compensate for the negative impact of nonlinear refraction on the lasing characteristics of lasers.

• 出版日期2012-1