Acta Phys. -Chim. Sin. ›› 2015, Vol. 31 ›› Issue (11): 2023-2028.doi: 10.3866/PKU.WHXB201509182

• THERMODYNAMICS, KINETICS, AND STRUCTURAL CHEMISTRY • Previous Articles     Next Articles

Simulation of Surface Plasmon Coupled Emission with Silver Film

Chen. CHEN1,Dan-Feng. LU1,Jin. CHENG1,Zhi-Mei. QI1,2,*()   

  1. 1 State Key Laboratory of Transducer Technology, Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, P. R. China
    2 State Key Laboratory of NBC Protection for Civilian, Beijing 102205, P. R. China
  • Received:2015-05-25 Published:2015-11-13
  • Contact: Zhi-Mei. QI E-mail:zhimei-qi@mail.ie.ac.cn
  • Supported by:
    the National Key Basic Research Program of China (973)(2015CB352100);National Natural Science Foundation ofChina(61377064, 61401432);State Key Laboratory of NBC Protection for Civilian, China(SKLNBC2014-11)

Abstract:

Surface plasmon coupled emission (SPCE) is a physical process opposite to conventional surface plasmon resonance (SPR) with Kretschmann configuration: if a molecule is close enough to the metal surface, the photons generated by excitation of the molecule will be coupled to the SPR mode that is then transformed into the far-field beam propagating at the resonance angle. SPCE serving as a powerful surface-selective analytical technique has been recently used in fluorescence and Raman spectroscopies, and it has several advantages such as repeatable field enhancement, high collection efficiency, and great surface selectivity. In this work, we simplified the simulation of SPCE based on the optical reciprocity theorem. We obtained the radiation patterns of the excited molecule with different orientations, the surface selectivity of SPCE, the wavelength dependence of the radiation angle, and the relationship between the full-width at half-maximum (FWHM) of the radiation angle and the thickness of a silver layer. These simulated results fit almost perfectly with the experimental results reported previously.

Key words: Surface plasmon coupled emission, Optical reciprocity theorem, Surface plasmon resonance, Fluorescence spectroscopy, Raman spectroscopy

MSC2000: 

  • O644