Type-tunable amplified spontaneous emission from core-seeded CdSe/CdS nanorods controlled by exciton-exciton interaction

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Kelestemur Y., Cihan A. F., Guzelturk B., Demir H. V.

NANOSCALE, vol.6, no.15, pp.8509-8514, 2014 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 6 Issue: 15
  • Publication Date: 2014
  • Doi Number: 10.1039/c4nr01538j
  • Journal Name: NANOSCALE
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.8509-8514
  • Middle East Technical University Affiliated: No

Abstract

Type-tunable optical gain performance of core-seeded CdSe/CdS nanorods is studied via two-photon optical pumping. Controlling the exciton-exciton interaction by varying the core and shell size, blue-shifted and red-shifted modes of amplified spontaneous emission are systematically demonstrated and their type attributions are verified by time-resolved emission kinetics.