Polycrystalline MgAlO spinel for infrared and terahertz region windowsHongying Mei, Hua Wen, Shuxiang Sun, Xinyan Zheng, Juan Xiong, Haizi Yao, HaoWen Li, Lijun Yin and Wen XuEur. Phys. J. B, 97 1 (2024) 13DOI: https://doi.org/10.1140/epjb/s10051-023-00637-5