Giant optical nonlinearity of silver-doped silicon thin film at low power input: laser-triggered cluster resonance
Tóm tắt
Silver-doped silicon thin films were deposited on glass substrate in a co-sputtering procedure. Silver nanoparticles were segregatedly distributed. The nonlinear properties were extracted by z-scan measurements at low laser input power. For about 50% silver density, the nonlinear absorption and refraction coefficients peaked, respectively, at −8.086×10−2 m/W and 1.47×10−9 m2/W, which, with respect to the input intensity, are several orders higher than reported data. The sudden surge of nonlinear responses was explained satisfactorily based on a self-consistent microscopic model calculation for silver clusters. Resonances exist and depend apparently on the laser-modified local cluster concentration.
Tài liệu tham khảo
H.B. Liao, R.F. Xiao, J.S. Fu, P. Yu, G.K.L. Wong, P. Sheng, Appl. Phys. Lett. 70, 1 (1997)
H.B. Liao, R.F. Xiao, J.S. Fu, P. Yu, G.K.L. Wong, P. Sheng, Appl. Phys. Lett. 72, 1817 (1998)
Q.F. Zhang, W.M. Liu, Z.Q. Xue, J.L. Wu, Appl. Phys. Lett. 82, 958 (2003)
P. Zhou, G.J. You, Y.G. Li, T. Han, J. Li, S.Y. Wang, L.Y. Chen, Y. Liu, S.X. Qian, Appl. Phys. Lett. 83, 3876 (2003)
X.Y. Hu, P. Jiang, C. Xin, H. Yang, Q.H. Gong, Appl. Phys. Lett. 94, 031103 (2009)
J.L. Gu, J.L. Shi, G.J. You, L.M. Xiong, S.X. Qian, Z.L. Hua, H.R. Chen, Adv. Mater. 17, 557 (2005)
L. Gao, Y.L. Zhen, J. Appl. Phys. 87, 1620 (2000)
D.R. Liu, K.S. Wu, M.F. Shih, M.Y. Chern, Opt. Lett. 27, 1549 (2002)
H.R. Ma, R.F. Xiao, P. Sheng, J. Opt. Soc. Am. B 15, 1022 (1998)
S. Debrus, J. Lafait, M. May, N. Pincon, D. Prot, C. Sella, J. Venturini, J. Appl. Phys. 88, 4469 (2000)
J. Liu, J. Wei, J. Appl. Phys. 106, 083112 (2009)
Y. Choi, J. Park, M. Kim, W. Jhe, Appl. Phys. Lett. 78, 856 (2001)
L. Yang, G.H. Li, L.D. Zhang, Appl. Phys. Lett. 76, 1537 (2000)
R.H. Doremus, J. Appl. Phys. 37, 2775 (1966)
M. Perner, P. Bost, U. Lemmer, G. von Plessen, J. Feldmann, Phys. Rev. Lett. 78, 2192 (1997)
M. Xiao, S. Bozhevolnyi, J. Phys., Condens. Matter 13, 3001 (2001)
M. Xiao, J. Opt. Soc. Am. A 14, 2977 (1997)
M. Xiao, A. Zayats, J. Siqueiros, Phys. Rev. B 55, 1824 (1997)