The Z-scan experimental technique is used for measuring the nonlinear refractive index and nonlinear absorption coefficient of optical materials.

The sample is translated along an optical path of a focused laser beam and its intensity is simultaneously measured with open-aperture and closed-aperture photodiodes. When the sample is in the vicinity of beam focus, changes in the closed-aperture signal are mainly caused by nonlinear refraction-induced self-focusing, while the open-aperture signal deviation is mostly due to nonlinear absorption. Simultaneous fitting of the measured Z-scan traces with the theory allows for the identification of both refraction and absorption nonlinear parameters of the material.

The Z-scan measurement can be carried out inside the HARPIA-TB module using the harmonics of PHAROS or CARBIDE laser fundamental radiation or optical parametric amplifier (OPA) pump pulses. In the latter case, dispersion of nonlinear parameters can be measured, as well.

  • 传输附加飞秒或皮秒光束
  • 偏振、强度和延迟可控
  • 支持飞秒受激拉曼散射(FSRS)
  • 支持Z扫描
  • 100 fs – 20 ps 连续可调脉宽
  • 最大单脉冲能量 4 mJ
  • 最高输出功率 20 W
  • 单脉冲 – 1 MHz 重复频率
  • BiBurst 脉冲串功能
  • 自动谐波发生器(高达 5 次谐波)
  • 190 fs – 20 ps 连续可调脉宽
  • 最大单脉冲能量 2 mJ
  • 最大输出功率 80 W
  • 单脉冲 – 2 MHz 重复频率
  • 脉冲选择器功能,可按需输出脉冲
  • BiBurst 脉冲串模式
  • 风冷型号
  • 190 nm – 16000 nm 可调波长
  • 单脉冲 – 2 MHz 重复频率
  • 最高泵浦功率 80 W
  • 最大泵浦单脉冲能量 2 mJ
  • 全自动化控制
  • 515 nm、343 nm、258 nm 和 206 nm 输出
  • 有源谐波的简单选择
  • 同步或切换输出
  • 高功率和高能量、可定制型号

Flexible and Transparent Oligothiophene-o-Carborane-Containing Hybrid Films for Nonlinear Optical Limiting Based on Efficient Two-Photon Absorption

W. Feng, K. Liu, J. Zang, G. Wang, R. Miao, L. Ding, T. Liu, J. Kong, and Y. Fang, ACS Applied Materials & Interfaces (2021).

Highly broadband NLO response of acceptor–donor–acceptor materials with a planar conformation

Y. Huang, W. Zhou, X. Li, L. Jiang, and Y. Song, Materials Advances 6 (2), 2097-2103 (2021).

Highly Emissive Deep-Red Perovskite Quantum Dots in Glass: Photoinduced Thermal Engineering and Applications

K. Sun, D. Tan, J. Song, W. Xiang, B. Xu, and J. Qiu, Advanced Optical Materials, 2100094 (2021).

Linear and nonlinear optical characteristics of CsPbBr3 perovskite quantum dots-doped borosilicate glasses

Z. Xu, T. Chen, D. Zhang, G. Zheng, J. Wu, J. Yan, X. Liu, and J. Qiu, Journal of the European Ceramic Society 1 (41), 729-734 (2021).

Nonlinear optical properties of 6H-SiC and 4H-SiC in an extensive spectral range

X. Guo, Z. Peng, P. Ding, L. Li, X. Chen, H. Wei, Z. Tong, and L. Guo, Optical Materials Express 4 (11), 1080 (2021).

Anthracene derivatives as broadband nonlinear optical materials: nonlinear absorption and excited-state dynamics analysis

W. Zhou, Y. Fang, X. Wu, Y. Han, J. Yang, L. Shen, and Y. Song, RSC Advances 34 (10), 19974-19981 (2020).

D–π–A-Type Pyrene Derivatives with Different Push–Pull Properties: Broadband Absorption Response and Transient Dynamic Analysis

R. Niu, Y. Wang, X. Wu, S. Chen, X. Zhang, and Y. Song, The Journal of Physical Chemistry C 9 (124), 5345-5352 (2020).

Enhanced Reverse Saturable Absorption in Substituted Twistacenes from Visible to Near-Infrared: Modulation of Terminal Twisted π-Conjugated Units

J. Jia, X. Wu, Y. Fang, J. Yang, Y. Han, J. Xiao, X. Zhang, Y. Wang, and Y. Song, The Journal of Physical Chemistry C 8 (124), 4701-4708 (2020).

Investigation of ultrafast optical nonlinearities in novel bis-chalcone derivatives

Y. Yang, X. Wu, J. Jia, L. Shen, W. Zhou, J. Yang, and Y. Song, Optics & Laser Technology 123, 105903 (2020).

Ultrafast broadband nonlinear optical properties and excited-state dynamics of two bis-chalcone derivatives

L. Shen, Z. Li, X. Wu, W. Zhou, J. Yang, and Y. Song, RSC Advances 26 (10), 15199-15205 (2020).