Junyi Yang et al 2009 J. Phys. B: At. Mol. Opt. Phys. 42 225404 doi:10.1088/0953-4075/42/22/225404
Junyi Yang1, Yuxiao Wang2, Xueru Zhang2, Changwei Li2, Xiao Jin2, Min Shui2 and Yinglin Song1
Show affiliationsThe transient thermal-lens effect in a solution is investigated by using the top-hat beam Z-scan technique. The numerical results show that the sensitivity of the top-hat beam Z-scan measurements is about 3.5 times greater than the Gaussian beams for the transient thermal-lens effect when the phase shift is small, which is greater than that for the Kerr effect and the steady-state thermal-lens effect. The reasons are also discussed in detail.
78.20.Nv Thermooptical and photothermal effects
42.65.Hw Phase conjugation; photorefractive and Kerr effects
Issue 22 (28 November 2009)
Received 20 May 2009, in final form 22 September 2009
Published 30 October 2009
Junyi Yang et al 2009 J. Phys. B: At. Mol. Opt. Phys. 42 225404
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