Third harmonic enhancement due to Fano interference in semiconductor quantum well J. Luo, Y. P. Niu, H. Sun, N. Cui, S. Q. Jin, S. Q. Gong and H. J. Zhang Eur. Phys. J. D, 50 1 (2008) 87-90 Published online: 22 October 2008 DOI: 10.1140/epjd/e2008-00198-7