The enhancement of the spontaneous emission rate of a quantum system by its environment (the Purcell effect [1]) have many potential applications. Plasmonic cavities, made of metallic nanostructures, enable the observation of this effect  at subwavelength scales[2].  Hence, they are promising structures for fabricating nanophotonic devices, e.g., single-photon sources[2,3], miniaturized coherent light sources[4] and ultra-small sensors[5]. In this literature seminar, I will describe the design of plasmonic cavities and their optical properties.



  1. E. M. Purcell, H. C. Torrey, and R. V. Pound, Phys. Rev., vol. 69, pp. 37–38,1946.
  2. J. T. Hugall, A. Singh, N. F. van Hulst, ACS Photonics, vol 5, pp 43-53, 2018.‏
  3. G. Zhu, Q. Liao, Opt. express, vol 26, pp 31391-31401, 2018.   ‏
  4. A. Yang, D. Wang, W. Wang, and T. W. Odom,  Annu. Rev. Phys., vol 68, pp 83-99, 2017.
  5. S.H. Kwon, Plasmonics, vol 8, pp 963-967, 2013.‏