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皮秒 透射率法表征高分子薄膜双光子吸收截面

苏少昌,王希军

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苏少昌, 王希军. 皮秒 透射率法表征高分子薄膜双光子吸收截面[J]. , 2011, 4(1): 82-85.
引用本文: 苏少昌, 王希军. 皮秒 透射率法表征高分子薄膜双光子吸收截面[J]. , 2011, 4(1): 82-85.
SU Shao-chang, WANG Xi-jun. Measurement of TPA cross-section of organic material films based on picosecond laser nonlinear transmittance method[J]. Chinese Optics, 2011, 4(1): 82-85.
Citation: SU Shao-chang, WANG Xi-jun. Measurement of TPA cross-section of organic material films based on picosecond laser nonlinear transmittance method[J].Chinese Optics, 2011, 4(1): 82-85.

皮秒 透射率法表征高分子薄膜双光子吸收截面

基金项目:

应用光学国家重点实验室应用光学基金资助项目(DA04Q05)

详细信息
    作者简介:

    苏少昌(1978—),男,河北人,博士研究生,主要从事大功率固体 器的研究。E-mail:susc403@163.com 王希军(1963—),男,吉林人,研究员,博士后,博士生导师,主要从事大功率固体 器及其相关技术的研究。 E-mail:xjwang@ciomp.ac.cn

    苏少昌(1978—),男,河北人,博士研究生,主要从事大功率固体 器的研究。E-mail:susc403@163.com 王希军(1963—),男,吉林人,研究员,博士后,博士生导师,主要从事大功率固体 器及其相关技术的研究。 E-mail:xjwang@ciomp.ac.cn

  • 中图分类号:O484.5

Measurement of TPA cross-section of organic material films based on picosecond laser nonlinear transmittance method

  • 摘要:为了有效地测量有机薄膜的双光子吸收截面,针对较薄有机薄膜(约60 m)和有限激发光源功率,提出了基于非线性透过率测量法的皮秒 脉冲激发等效多层膜非线性透过率法来实现双光子吸收截面的测量。首先在PC材料基板上旋涂偶氮染料薄膜,将带有偶氮薄膜的PC基板剪切成小块(20 mm 20 mm),并将5块叠加起来作为测量样品,然后采用LD泵浦的Nd∶ YVO4皮秒锁模 器(脉冲宽度为20 ps、重复频率为56.8 MHz、输出波长为1 064 nm)激发样品。 在实验中,通过测量样品的非线性透过率,拟合偶氮样品的透过率曲线,最终得到了双光子吸收截面(634.2 GM)。与其他测量方法相比,此方法简单、有效。

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出版历程
  • 收稿日期:2010-08-17
  • 修回日期:2010-10-25
  • 刊出日期:2011-02-25

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