The nonlinear optical properties of a new organic material, N-vinylcarbazole tricarbonyl chromium, are reported. The large two-photon absorption (TPA) coefficient and nonlinear refraction index are measured by an open-aperture Z-scan technique and closed-aperture Z-scan technique, respectively. The sample solution shows excellent optical limiting response.
© 2006 Chinese Optics Letters
Yuqiong Li, Zhenrong Sun, Zugeng Wang, Yanchao Che, Yizhong Yuan, and Xiaohui Tian, "Two-photon induced optical-power limiting in N-vinylcarbazole tricarbonyl chromium," Chin. Opt. Lett. 4, 480-482 (2006)