Real-time terahertz imaging for art conservation science K. Fukunaga, N. Sekine, I. Hosako, N. Oda, H. Yoneyama and T. Sudoh J. Eur. Opt. Soc.-Rapid Publ., 3 (2008) 08027 Published online: 22 August 2008 DOI: 10.2971/jeos.2008.08027