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Optical gain and green/red vertical cavity surface emitting lasing from cdse-based colloidal nanocrystal quantum dot thin films

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5 Author(s)
Cuong Dang ; School of Engineering, Brown University, Providence, RI 02912, USA ; Arto Nurmikko ; Craig Breen ; Jonathan S. Steckel
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We demonstrate robust excitonic gain from colloidal close-packed, CdSe-based nanocrystal quantum dot thin films at record low threshold excitation energy of 90 μJ/cm2 for amplified spontaneous emission. The optical gain is employed in pulsed optically pumped quantum dot vertical cavity surface emitting lasers in the green and the red, respectively.

Published in:

CLEO: 2011 - Laser Science to Photonic Applications

Date of Conference:

1-6 May 2011