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Proceedings Paper

Photonic emitters and circuits based on colloidal quantum dot composites
Author(s): Vinod M. Menon; Saima Husaini; Nikesh Valappil; Matthew Luberto
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Paper Abstract

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.

Paper Details

Date Published: 17 February 2009
PDF: 8 pages
Proc. SPIE 7224, Quantum Dots, Particles, and Nanoclusters VI, 72240Q (17 February 2009);
Show Author Affiliations
Vinod M. Menon, Queens College/CUNY (United States)
Saima Husaini, Queens College/CUNY (United States)
Nikesh Valappil, Queens College/CUNY (United States)
Matthew Luberto, Queens College/CUNY (United States)

Published in SPIE Proceedings Vol. 7224:
Quantum Dots, Particles, and Nanoclusters VI
Kurt G. Eyink; Frank Szmulowicz; Diana L. Huffaker, Editor(s)

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