2CROCKER A, GEBBIE H A, KIMMIT M F, et al. Stimulated emission in the far infrared[J]. Nature, 1964, 201: 250.
3GEBBIE H A, STONE N W B, FINDLAY F D. Interferometric observations on far infra-red stimulated emissioin sources[J]. Nature, 1964, 202: 169-170.
4GEBBIE H A, STONE N W B, FINDLAY F D. A stimulated emission source at 0.34 millimetre wave-length[J]. Nature, 1964, 202: 685.
5HU B B, NUSS M C. Imaging with terahertz waves[J]. Opt Lett, 1995, 20(4): 1716.
6PICKWELL E, WALLACE V P. Biomedical applications of terahertz technology[J]. J Phy D Appl Phys, 2006, 39(17): 301-310.
7SIEGEL P H. Terahertz technology[J]. IEEE MTT, 2002, 50 (3): 910.
8ARNONE D D, CIESLA C M. Application of terahertz (THz) technology to medical imaging[C]//Proc SPIE Terahertz Spectroscopy Applications II. Bellingham, WA: International Society for Optical Engineering, 1999: 209-219.
9ANDREW L. Cosmic Background and space science at THz frequencies[C]//2008 IRMMW-THz Conference. Pasadena, California, USA: California Institute of Technology, 2008.
10FITZGERALD A J, BERRY E, ZINOV'EV N N, et al. Catalogue of human tissue optical properties at terahertz frequencies[J]. J Biol Phys. 2003, 29(2): 123-128.
