Plasmonic laser

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A plasmonic laser is a type of laser which aims to confine light at a subwavelength scale far below the Rayleigh's diffraction limit of light, by storing some of the light energy through electron oscillations called surface plasmon polaritons.[1][2][3][4] Due to the role of the surface plasma excitations in their operation, they are sometimes called SPASERs (from Surface Plasmon Amplification by Stimulated Emission of Radiation).[5]

On the applied front, myriad prospects could arise, among them the fabrication of ultra-fast photonic nano circuits with unprecedented performance and the improvement of techniques such as nanolithography and single-molecule biochemical sensing.


  1. ^ Oulton, Rupert F.; Sorger, Volker J.; Zentgraf, Thomas; Ma, Ren-Min; Gladden, Christopher; Dai, Lun; Bartal, Guy; Zhang, Xiang (2009). "Plasmon lasers at deep subwavelength scale". Nature. 461 (7264): 629–632. Bibcode:2009Natur.461..629O. doi:10.1038/nature08364. ISSN 0028-0836. PMID 19718019. 
  2. ^ Ma, Ren-Min; Oulton, Rupert F.; Sorger, Volker J.; Bartal, Guy; Zhang, Xiang (2010). "Room-temperature sub-diffraction-limited plasmon laser by total internal reflection". Nature Materials. 10 (2): 110–113. Bibcode:2011NatMa..10..110M. doi:10.1038/nmat2919. ISSN 1476-1122. PMID 21170028. 
  3. ^ Noginov, M. A.; Zhu, G.; Belgrave, A. M.; Bakker, R.; Shalaev, V. M.; Narimanov, E. E.; Stout, S.; Herz, E.; Suteewong, T.; Wiesner, U. (2009). "Demonstration of a spaser-based nanolaser". Nature. 460 (7259): 1110–1112. Bibcode:2009Natur.460.1110N. doi:10.1038/nature08318. ISSN 0028-0836. PMID 19684572. 
  4. ^ Kumar, Pawan; Tripathi, V.K.; Liu, C.S (2008). "A surface plasmon laser". J. Appl. Physics. 104: 033306. 
  5. ^ Bergman, David J.; Stockman, Mark I. (2003). "Surface Plasmon Amplification by Stimulated Emission of Radiation: Quantum Generation of Coherent Surface Plasmons in Nanosystems". Phys. Rev. Lett. 90 (2): 027402. Bibcode:2003PhRvL..90b7402B. doi:10.1103/PhysRevLett.90.027402.