1. W. R. Tribe, D. A. Newnham, P. F. Taday, and M. C. Kemp, Terahertz and Gigahertz Electronics and Photonics III 5354, 168 (2004).
2. J. F. Federici, B. Schulkin, F. Huang, D. Gary, R. Barat, F. Oliveira et al. Semiconductor Science and Technology 20, S266–S280 (2005).
3. P. F. Taday, D. V. D. Weide, K. Wood, M. Chamberlain, H. Roskos, C. Phillips et al. Philos. Trans. A. Math Phys. Eng. Sci. 362, 351–364 (2004).
4. F. Oliveira, R. Barat, B. Schulkin, F. Huang, J. F. Federici, D. Gary et al.. Terahertz for Military and Security Applications II 5411, 45 (2004).
5. Z. H. Michalopoulou, S. Mukherjee, Y. L. Hor, K. Su, Z. Liu, R. B. Barat et al., Journal of Infrared, Millimeter, and Terahertz Waves, Springer 31, 1171–1181 (2010).