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

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

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/cm 2 for amplified spontaneous emission. The optical gain is employed in pulsed optically pumped quantum dot vertical cavity surface emit...

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Bibliographische Detailangaben
Hauptverfasser: Cuong Dang, Nurmikko, Arto, Breen, Craig, Steckel, Jonathan S., Coe-Sullivan, Seth
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Cavity resonators
Green products
Nanocrystals
Optical films
Optical pumping
Stimulated emission
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Beschreibung
Zusammenfassung: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/cm 2 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.
ISSN:2160-8989
2160-9004
DOI:10.1364/cleo_si.2011.cfl6