Journal
OPTICS EXPRESS
Volume 18, Issue 25, Pages 26169-26174Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.18.026169
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Funding
- NSFC [60708020, 10974103]
- Program for New Century Excellent Talents in University [NCET-09-0484]
- Chinese National Key Basic Research Special Fund [2006CB921703]
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The femtosecond open-aperture Z-scan of standard sample CS(2) at 800 and 780 nm is present here by using thinner sample length and an integrating sphere. The open-aperture Z-scan signal is verified to arise mainly from nonlinear scattering, not from two-or three-photon absorption as reported in literature. And the two-and three-photon absorption coefficients of CS(2) are negligible. Therefore, around 800 nm the femtosecond open-aperture Z-scan of CS(2) cannot be used to calibrate Z-scan measurement system, but the closed-aperture Z-scan is capable. (C) 2010 Optical Society of America
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