Surface plasmon enhanced super bright InGaN light emitter

Koichi Okamoto, Isamu Niki, Alexander Shvartser, Yukio Narukawa, Takashi Mukai, Axel Scherer

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)


We use surface plasmons to increase the light emission efficiency from InGaN/GaN quantum wells by covering these with thin metallic films. Large luminescence enhancements were measured when silver or aluminum layers are deposited 10 nm above an InGaN light emitting layer, whereas no such enhancements are obtained from gold coated samples. The internal quantum efficiencies of quantum wells before and after metallization were determined from the temperature dependence of the photoluminescence intensity. Our results indicate that the use of surface plasmons will lead to a new class of very bright light emitting diodes, and highly efficient solid-state light sources.

Original languageEnglish
Pages (from-to)2841-2844
Number of pages4
JournalPhysica Status Solidi C: Conferences
Issue number7
Publication statusPublished - 2005
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics


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