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The Ho3+/Tm3+ codoped bismuth germanate glasses containing Ag nanoparticles (NPs) are synthesized by a chemical reduction method based on the conventional melting-quenching technique. The effect of concentration of Ag NPs on the 2 um emission is studied. The absorption band related to the surface plasmon resonance (SPR) of the Ag NPs is located in a range from 500 to 900 nm. Transmission electron microscopic image clearly reveals homogeneously dispersed Ag NPs with the sizes ranging from 5 to 10 nm. The luminescence spectra in a range of 1.7-2.3 um are collected. With the addition mass fraction of the AgCl up to 0.3%, the intensity of emission band of Ho3+ ions, centered at 2.03 um, is increased by 10 folds. The enhancement of 2 um luminescence is attributed to the enhanced local field induced by SPR of Ag NPs. The calculated absorption cross section and emission cross section are 0.491 10-20 cm-2 and 1.0310-20 cm-2, respectively. When the gain coefficient p=0.2, the positive gain would be realised.
[1] Zhu J, Dai S X, Peng B, Shen X, Wang X S, Xu T F, Nie Q H 2010 Acta Phys. Sin. 59 5803 (in Chinese) [朱军, 戴世勋, 彭波, 沈祥, 王训四, 徐铁峰, 聂秋华 2010 物理学报 59 5803]
[2] Dai S X, Peng B, Le F D, Wang X S, Shen X, Xu T F, Nie Q H 2010 Acta Phys. Sin. 59 3547 (in Chinese) [戴世勋, 彭波, 乐放达, 王训四, 沈祥, 徐铁峰, 聂秋华 2010 物理学报 59 3547]
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[5] Yi L, Wang M, Feng S, Chen Y, Wang G, Hu L, Zhang J 2009 Opt. Mater. 31 1586
[6] Huang D D, Yang Q H, Wang Y G, Zhang H J, Lu S Z, Zou Y W, Wei Z Y 2013 Chin. Phys. B 22 037801
[7] Wang J G, Zhang Z G, Xu J Z, Xu J R, Fu P M, Chen X B 2000 Chin. Phys. 9 210
[8] Wei S, Xu Y, Dai S, Zhou Y, Lin C, Zhang P 2013 Physica B 416 64 68
[9] Zhang W J, Zhang Q Y, Chen Q J, Qian Q, Yang Z M, Qiu J R, Huang P, Wang Y S 2009 Opt. Express 17 20952
[10] Tong J B, Huang Q, Zhang X D, Zhang C S, Zhao Y 2012 Acta Phys. Sin. 61 047801 (in Chinese)[佟建波, 黄茜, 张晓丹, 张存善, 赵颖 2012 物理学报 61 047801]
[11] Wu Y, Shen X, Dai S, Xu Y, Chen F, Lin C, Xu T, Nie Q 2011 J. Phys. Chem. C 115 25040
[12] Qi J, Xu T, Wu Y, Shen X, Dai S, Xu Y 2013 Opt. Mater. 35 2502
[13] Guo H, Wang X, Chen J, Li F 2010 Opt. Express 18 18900
[14] Yu W, Wang X Z, Dai W L, Lu W B, Liu Y M, Fu G S 2013 Chin. Phys. B 22 057804
[15] Eichelbaum M, Rademann K 2009 Adv. Funct. Mater. 19 2045
[16] Chen F, Dai S, Xu T, Shen X, Lin C, Nie Q, Liu C, Heo J 2011 Chem. Phys. Lett. 514 79
[17] Tikhomirov V K, Méndez-Ramos J, Rodríguez V D, Furniss D, Seddon A B 2007 J. Alloys Compd. 436 216
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[1] Zhu J, Dai S X, Peng B, Shen X, Wang X S, Xu T F, Nie Q H 2010 Acta Phys. Sin. 59 5803 (in Chinese) [朱军, 戴世勋, 彭波, 沈祥, 王训四, 徐铁峰, 聂秋华 2010 物理学报 59 5803]
[2] Dai S X, Peng B, Le F D, Wang X S, Shen X, Xu T F, Nie Q H 2010 Acta Phys. Sin. 59 3547 (in Chinese) [戴世勋, 彭波, 乐放达, 王训四, 沈祥, 徐铁峰, 聂秋华 2010 物理学报 59 3547]
[3] Richards B, Shen S, Jha A, Tsang Y, Binks D 2007 Opt. Express 15 6546
[4] Zhang X L, Wang Y Z, Shi H F 2006 Acta Phys. Sin. 55 1787 (in Chinese) [张新陆, 王月珠, 史洪峰 2006 物理学报 55 1787]
[5] Yi L, Wang M, Feng S, Chen Y, Wang G, Hu L, Zhang J 2009 Opt. Mater. 31 1586
[6] Huang D D, Yang Q H, Wang Y G, Zhang H J, Lu S Z, Zou Y W, Wei Z Y 2013 Chin. Phys. B 22 037801
[7] Wang J G, Zhang Z G, Xu J Z, Xu J R, Fu P M, Chen X B 2000 Chin. Phys. 9 210
[8] Wei S, Xu Y, Dai S, Zhou Y, Lin C, Zhang P 2013 Physica B 416 64 68
[9] Zhang W J, Zhang Q Y, Chen Q J, Qian Q, Yang Z M, Qiu J R, Huang P, Wang Y S 2009 Opt. Express 17 20952
[10] Tong J B, Huang Q, Zhang X D, Zhang C S, Zhao Y 2012 Acta Phys. Sin. 61 047801 (in Chinese)[佟建波, 黄茜, 张晓丹, 张存善, 赵颖 2012 物理学报 61 047801]
[11] Wu Y, Shen X, Dai S, Xu Y, Chen F, Lin C, Xu T, Nie Q 2011 J. Phys. Chem. C 115 25040
[12] Qi J, Xu T, Wu Y, Shen X, Dai S, Xu Y 2013 Opt. Mater. 35 2502
[13] Guo H, Wang X, Chen J, Li F 2010 Opt. Express 18 18900
[14] Yu W, Wang X Z, Dai W L, Lu W B, Liu Y M, Fu G S 2013 Chin. Phys. B 22 057804
[15] Eichelbaum M, Rademann K 2009 Adv. Funct. Mater. 19 2045
[16] Chen F, Dai S, Xu T, Shen X, Lin C, Nie Q, Liu C, Heo J 2011 Chem. Phys. Lett. 514 79
[17] Tikhomirov V K, Méndez-Ramos J, Rodríguez V D, Furniss D, Seddon A B 2007 J. Alloys Compd. 436 216
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