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In this paper, we present a new kind of surface plasma resonance (SPR) sensor. It comprises three layers, an upper coupling prism, a middle metal layer, and a bottom semi-infinite two-level atom medium. Based on theoretical analysis on this SPR system, it is found that there are some new phenomena due to the coexistence of two resonant effects, i.e., the surface plasmon resonance and the resonant quantum transition between atomic energy levels. An interesting phenomenon is that the reflectivity of the incident light is very sensitive to the shift of atomic level induced by external field. This phenomenon is absent in ordinary SPR systems. Because the shift of atomic level is determined by external field, ultimately, the reflectivity of the incident light is sensitive to the external field. In this paper calculations are presented in the case where the external field is a magnetic field. It is found that the reflectivity of the incident light is very sensitive to the magnetic field. This property can be used for measuring a very weak magnetic field near surface of matter , thus it can be used for developing a new detection technology.
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Keywords:
- surface plasmon resonance /
- Zeeman effect /
- quantum medium
[1] Huang Q, Xiong S Z, Zhao Y, Zhang X D 2012 Acta Phys. Sin. 61 157801 (in Chinese) [黄茜, 熊绍珍, 赵颖, 张晓丹 2012 物理学报 61 157801]
[2] Long Y B, Zhang J, Wang G P 2009 Acta Phys. Sin. 58 7722 (in Chinese) [龙佣兵, 张剑, 汪国平 2009 物理学报 58 7722]
[3] Homola J, Yee S S, Gauglitz G 1999 Sensors and Actuators B 54 3
[4] Ordal M A, Long L L, Bell R J, Bell S E, Bell R R, Alexander R W, Ward J, Ward C A 1983 Appl. Opt. 11 1099
[5] Homola J 2006 Springer Ser Chen Biosens 4 3
[6] Kretschmann E, Raether H 1968 Z. Naturforsch. 23A 2135
[7] Le Persona J, Colas F, Compérea C, Lehaitre M, Anne M L, Boussard-Plédel C, Bureau B, Adam J L, Deputier S, Guilloux-Viry M 2008 Sensors and Actuators B: Chemical 130 771
[8] Melendez J, Carr R, Bartholomew D U 1996 Sensors and Actuators B 35-36 212
[9] Melendez J, Carr R, Bartholomew D U, Taneja H, Yee S, Jung C, Furlong C E 1997 Sensors and Actuators B 39 375
[10] Liu J K 2005 Optical Technique 31 557 (in Chinese) [刘建科 2005 光学技术 31 557]
[11] Li F L 2006 Advanced Laser Physics (2nd Edn.) (Beijing: Higher Education Press) p49 (in Chinese) [李福利 2006 高等激光物理 (第二版) (北京: 高等教育出版社) 第49页]
[12] Hau L V, Harris S E, Dutton Z, Behroozi C H 1999 Nature 397 594
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[1] Huang Q, Xiong S Z, Zhao Y, Zhang X D 2012 Acta Phys. Sin. 61 157801 (in Chinese) [黄茜, 熊绍珍, 赵颖, 张晓丹 2012 物理学报 61 157801]
[2] Long Y B, Zhang J, Wang G P 2009 Acta Phys. Sin. 58 7722 (in Chinese) [龙佣兵, 张剑, 汪国平 2009 物理学报 58 7722]
[3] Homola J, Yee S S, Gauglitz G 1999 Sensors and Actuators B 54 3
[4] Ordal M A, Long L L, Bell R J, Bell S E, Bell R R, Alexander R W, Ward J, Ward C A 1983 Appl. Opt. 11 1099
[5] Homola J 2006 Springer Ser Chen Biosens 4 3
[6] Kretschmann E, Raether H 1968 Z. Naturforsch. 23A 2135
[7] Le Persona J, Colas F, Compérea C, Lehaitre M, Anne M L, Boussard-Plédel C, Bureau B, Adam J L, Deputier S, Guilloux-Viry M 2008 Sensors and Actuators B: Chemical 130 771
[8] Melendez J, Carr R, Bartholomew D U 1996 Sensors and Actuators B 35-36 212
[9] Melendez J, Carr R, Bartholomew D U, Taneja H, Yee S, Jung C, Furlong C E 1997 Sensors and Actuators B 39 375
[10] Liu J K 2005 Optical Technique 31 557 (in Chinese) [刘建科 2005 光学技术 31 557]
[11] Li F L 2006 Advanced Laser Physics (2nd Edn.) (Beijing: Higher Education Press) p49 (in Chinese) [李福利 2006 高等激光物理 (第二版) (北京: 高等教育出版社) 第49页]
[12] Hau L V, Harris S E, Dutton Z, Behroozi C H 1999 Nature 397 594
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