W. Yan

TL;DR: In this paper, a series of Zr-doped lithium niobate crystals with various Zr content were studied using structural (high-resolution x-ray diffraction) and optical measurements as a function of the dopant content in the melt.

TL;DR: In this paper, a new approach to measure the refractive index of a given material, in its whole transparency window and within a single shot, is proposed, which requires the use of only few and common optical elements, and can be used also to directly evaluate the sample birefringence with high accuracy.

TL;DR: In this article, it was shown that tetravalent ions, like Hf or Zr, can significantly reduce the photorefractivity of LN, and that the dopant concentration required to reduce the crystal photoresistivity is considerably lower than that required for bivalent and trivalent dopants, even if some uncertainty about the exact required concentration is still present due to the discrepancies between the reported in the literature.

TL;DR: In this article, the pump intensity dependence of photorefractive effect in Zr-doped Lithium-Niobate crystals was investigated, and it was shown that the pump pump intensity grows linearly with light intensity in the undoped crystal whereas it saturates when doping concentration exceeds 2mol%.