the last several years,Terahertz spectroscopy has been used in different fields,including archaeology and cultural heritage conservation. This paper presents a review of the terahertz technology applied to paintings,focus- ing on THz-TDS(terahertz time domain spectroscopy)in pigment identification,terahertz imaging technology in fresco and oil painting study. Some other new technologies are also discussed.

electron physics; Terahertz imaging; cultural heritage; THz-TDS; pigment identification

Zhejiang University; University of Electronic Science and Technology of China