Z-扫描
Z 扫描实验技术用于测量光学材料的非线性折射率和非线性吸收系数。
将样品沿着聚焦激光束的光路平移，同时用开孔和闭孔光电二极管测量光束强度。当样品处于光束焦点附近时，闭孔信号的变化主要由非线性折射引起的自聚焦导致，而开孔信号的偏差则主要源于非线性吸收。通过将测得的 Z 扫描轨迹与理论进行同步拟合，可确定材料的折射和吸收非线性参数。
Z 扫描测量可在 HARPIA-TB 模块内进行，使用的光源包括 CARBIDE 或 PHAROS 激光器基频辐射的谐波，或光学参量放大器（OPA）的泵浦脉冲。在后一种情况下，还可测量非线性参数的色散。
Nonlinear optical properties of La3+-Doped tellurite-zinc glasses: Impact of chemical bonding and physical properties via Raman and XPS
Ceramics International • 2025
Electronic Structures and Spectra of Donor–Acceptor Conjugated Oligomers
The Journal of Physical Chemistry A • 2024
Giant excited-state absorption in resonant absorption band and intensity-depend ultrafast sign switching of nonlinear absorption in azonaphthalene compound
Optical Materials • 2024
Nonlinear absorption and optical limiting performance of broad-band multi-branched aniline derivatives in the near-infrared region
Dyes and Pigments • 2024
Perylene diimide tethered with multi-POSS nanocages for polymer composite material with nonlinear optical property
Dyes and Pigments • 2024
Significant Optical Limiting Properties for Ultrashort Laser Pulses and the Investigation of Ultrafast Absorption Mechanism in Two Novel Twist-Acene Compounds
Elsevier BV • 2024
Synthesis, Photophysical, and Optical Limiting Properties of Twistacene-Functionalized Arenes
The Journal of Physical Chemistry B • 2024
Investigation of Broadband Optical Nonlinear Absorption and Transient Dynamics in Orange IV Containing Azobenzene
Molecules • 2023
Pulse-width-dependent optical limiting properties of a novel twist-acene compound
Optical Materials • 2023
Ternary Chalcogenide Ta2NiTe5 as Broadband Saturable Absorber for Passively Q‐Switched Pulse Generation
Advanced Optical Materials • 2023
