[1] Letokhov V S. Generation of light by a scattering medium with negative resonance absorption. Soviet Physics JETP, 1968, 26: 835-840
[2] Lawandy N M, Balachandran R M, Gomes A S L, Sauvain E. Laser action in strongly scattering media. Nature, 1994, 368(6470): 436-438
[3] Cao H, Zhao Y G, Ho S T, Seelig E, Wang Q, Chang R. Random laser action in semiconductor powder. Physical Review Letters, 1999, 82(11): 2278-2281
[4] Li Q M, Ho K M, Soukoulis C M. Mode distribution in coherently amplifying random media. Physica B: Condensed Matter, 2001, 296(1-3): 78-84
[5] Cao H, Jiang X Y, Ling Y, Xu J Y, Soukoulis C M. Mode repulsion and mode coupling in random lasers. Physical Review B: Condensed Matter and Materials Physics, 2003, 67(16): 161101-161104
[6] Ito T, Tomita M. Polarization-dependent laser action in a twodimensionalrandom medium. Physical Review E: Statistical,Nonlinear, and Soft Matter Physics, 2002, 66(2): 027601-027604
[7] Wang C, Liu J S. Polarization dependence of lasing modes in twodimensional random lasers. Physics Letters, 2006, 353(2-3): 269-272
[8] Liu J S, Xiong Z, Chun W. Theoretical investigation on polarization-dependent laser action in two-dimensional random media. Journal of Optics A: Pure and Applied Optics, 2007, 9(7): 658-663
[9] Soukoulis C M, Jiang X Y, Xu J Y, Cao H. Dynamic response and relaxation oscillations in random lasers. Physical Review B: Condensed Matter and Materials Physics, 2002, 65(4): 041103
[10] Jiang X Y, Feng S L, Soukoulis C M, Zi J, Joannopoulos J D, Cao H. Coupling, competition and stability of modes in random lasers. Physical Review B: Condensed Matter and Materials Physics, 2004, 69(10): 104202-104208
[11] Siegman A E. Lasers. Mill Valley: University Science Books Press, 1986, 546-551