Nonlinear optical characteristics of DADP crystals with different deuterium

Autor: Xun Sun, Lili Zhu, Dongting Cai, Xiangxu Chai, Xiaodong Jiang, Mingxia Xu, Yafei Lian, Jin Huang
Rok vydání: 2019
Předmět:
Zdroj: Optical Materials. 91:17-22
ISSN: 0925-3467
DOI: 10.1016/j.optmat.2018.12.018
Popis: DADP crystals with different deuterium as 0%, 30%, 50%, and 70% were grown via traditional temperature reduction method and the samples were gained from the as-grown crystals in the directions of Ι -type (θ = 90°,φ = 45°). The transmittance spectrum, UV absorption spectrum, and Raman spectrum were implemented to describe the properties of DADP crystals, and the deuteration of ADP crystals makes a difference on the absorption peaks in these spectrums. Particularly, the optical band gap Eg decreases with the accretion of deuterium content. The third-order nonlinear optical characteristics were systematically represented and tested by means of Z-scan measurements with Pico-second pulse laser irradiation at λ = 355 nm, with the results listing the reverse saturable absorption and self-focusing effect. The investigations may contribute to replenish and elucidate the application and laser-induced damage of DADP crystals.
Databáze: OpenAIRE