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Proceedings Article

Photonic emitters and circuits based on colloidal quantum dot composites

[+] Author Affiliations
Vinod M. Menon, Saima Husaini, Nikesh Valappil, Matthew Luberto

Queens College/CUNY (USA)

Proc. SPIE 7224, Quantum Dots, Particles, and Nanoclusters VI, 72240Q (February 17, 2009); doi:10.1117/12.813464
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From Conference Volume 7224

  • Quantum Dots, Particles, and Nanoclusters VI
  • Kurt G. Eyink; Frank Szmulowicz; Diana L. Huffaker
  • San Jose, CA | January 24, 2009


We discuss our work on light emitters and photonic circuits realized using colloidal quantum dot composites. Specifically we will report our recent work on flexible microcavity laser, microdisk emitters and integrated active - passive waveguides. The entire microcavity laser structure was realized using spin coating and consisted of an all-polymer distributed Bragg reflector with a poly-vinyl carbazole cavity layer embedded with InGaP/ZnS colloidal quantum dots. These microcavities can be peeled off the substrate yielding a flexible structure that can conform to any shape and whose emission spectra can be mechanically tuned. The microdisk emitters and the integrated waveguide structures were realized using soft lithography and photo-lithography, respectively and were fabricated using a composite consisting of quantum dots embedded in SU8 matrix. Finally, we will discuss the effect of the host matrix on the optical properties of the quantum dots using results of steady-state and time-resolved luminescence measurements. In addition to their specific functionalities, these novel device demonstrations and their development present a low cost alternative to the traditional photonic device fabrication techniques.

© (2009) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.

Vinod M. Menon ; Saima Husaini ; Nikesh Valappil and Matthew Luberto
"Photonic emitters and circuits based on colloidal quantum dot composites", Proc. SPIE 7224, Quantum Dots, Particles, and Nanoclusters VI, 72240Q (February 17, 2009); doi:10.1117/12.813464; http://dx.doi.org/10.1117/12.813464

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