Color-selective semiconductor nanocrystal laser

Hans Jürgen Eisler, Vikram C. Sundar, Moungi G. Bawendi, Michael Walsh, Henry I. Smith, Victor I Klimov

Research output: Contribution to journalArticlepeer-review

303 Citations (Scopus)


Theoretical predictions of the benefits of three-dimensional quantum confinement have provided motivation for the development of quantum-dot lasers. Such lasers, developed in the case of self-assembled quantum dots, have not been successfully demonstrated with quantum-confined colloidal nanocrystals (NCs). Here, using recently developed NC-titania chemistry, we report the successful development of an optically pumped, NC-based distributed feedback laser, in which the narrow gain profiles of these nanoparticles have been matched with the feedback of a second-order distributed feedback laser. This laser, whose output color can be selected by choosing appropriately sized nanocrystals, operates at 80 K and at room temperature.

Original languageEnglish
Pages (from-to)4614-4616
Number of pages3
JournalApplied Physics Letters
Issue number24
Publication statusPublished - Jun 17 2002

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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