Jin Liu is an associate professor in the school of Precision Instrument and Opto-electronics Engineering of Tianjin University. She received her PhD of measurement technology and engineering in 2006 from Tianjin University, and works as a teacher in Tianjin University up to now. In 2014, she visited University of Washington for one year as a visiting scholar. She focuses on the research of optical measurement using Near-infrared Spectroscopy. She applied this technology on the component detection in turbid scattering media such as body tissue or food. She worked on the non-invasive blood components measurement for several years. She developed the new methods to measure the absorption spectra for skin or tissue and applied  for the patents in China, US and Japan.