Luminescence and gain around 1.3 μm in PbS quantum dots

J. Auxier, K. Wundke, A. Schulzgen, N. Peyghambarian, N. F. Borrelli

Research output: Contribution to conferencePaperpeer-review

8 Scopus citations


Strong luminescence and gain is observed for PbS quantum dot (QD) doped glasses at the 1.3 μm communications wavelength under CW and pulsed laser excitation, respectively, at 980 nm. Thermal treatment of an oxide molten glass is an inexpensive method to manufacture semiconductor quantum dot doped glasses with well-defined exciton peaks and small inhomogeneous broadening. The PbS QDs studied here have radii much smaller than the bulk exciton Bohr radius providing strong quantum confinement effects. As a result, the exciton resonances can be tuned to the communication wavelengths of 1.3 and 1.55 μm by varying the QD size.

Original languageEnglish (US)
Number of pages2
StatePublished - 2000
EventConference on Lasers and Electro-Optics (CLEO 2000) - San Francisco, CA, USA
Duration: May 7 2000May 12 2000


OtherConference on Lasers and Electro-Optics (CLEO 2000)
CitySan Francisco, CA, USA

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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