Supplemental material for Determining the Humidity-Dependent Ortho-to-Para Ratio of Water Vapor at Room Temperature Using Terahertz Spectroscopy

Supplemental material for Determining the Humidity-Dependent Ortho-to-Para Ratio of Water Vapor at Room Temperature Using Terahertz Spectroscopy by Xinyang Miao, Jing Zhu, Kun Zhao, Honglei Zhan and Wenzheng Yue in Applied Spectroscopy