Enhanced light emission by exciton-surface plasmon coupling

Koichi Okamoto, Axel Scherer, Yoichi Kawakami

Research output: Contribution to journalConference articlepeer-review

1 Citation (Scopus)


Surface plasmon coupling technique was performed to enhanced green light emissions from InGaN/GaN quantum well. We found that photoluminescence intensities were increased by fabricated nano-grating structures on the gold layers and enhancement ratios depend on the grating periods. We also simulated the localized SP modes by 3D-finite difference time domain (FDTD) calculation. The experimental results were well correlated to the calculated results, and we found that the both exciton-SP coupling and light extraction process can be controlled by the nano-structures of the interfaces. This suggests that even more efficient emission should be obtainable by optimizing the nanostructure geometries.

Original languageEnglish
Pages (from-to)24-28
Number of pages5
JournalMaterials Research Society Symposium Proceedings
Publication statusPublished - Dec 1 2008
EventExcitons and Plasmon Resonances in Nanostructures - Boston, MA, United States
Duration: Nov 26 2007Nov 30 2007

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering


Dive into the research topics of 'Enhanced light emission by exciton-surface plasmon coupling'. Together they form a unique fingerprint.

Cite this