Enhanced fluorescence from two dye-doped microspheres due to dipole-dipole interaction

Jang Sup Song, Soo Chul Kim, Namic Kwon, Hyunchul Nha, Wonho Jhe

Research output: Contribution to journalArticle

1 Citation (Scopus)


We have observed enhancement of fluorescent emissions from two optically trapped microparticles as the interparticle separation is decreased. Dye-doped latex particles with 1-μm diameters are used as the microparticles. These particles are positioned using twin laser tweezers and are pumped by a frequency-doubled Nd:YAG laser. The measured values are compared with theoretical estimates for the case of an excited atom interacting with its image in the vicinity of a dielectric surface, and the enhancement is attributed to the dipole-dipole interaction modifying the transition rates of the two radiating dipoles.

Original languageEnglish
Pages (from-to)270-272
Number of pages3
JournalJournal of the Korean Physical Society
Issue number3
Publication statusPublished - 1998
Externally publishedYes


ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this