Abstract
The mid-infrared spontaneous emission from intersubband energy transitions in self-assembled InAs quantum dots is demonstrated with plasmonic top contact output couplers. Electrically pumped devices having subwavelength meshes designed to exhibit extraordinary optical transmission from 9-12 μm are measured and compared to a reference device with an open area contact. From additional patterning on the top contact, the signal-to-noise ratio was 4 times greater than the reference device. Beyond simply filtering the emission spectra of the quantum dot material, an emission null is observed which we link to the dots being in the near field region of the plasmonic coupler.
Original language | English (US) |
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Title of host publication | Excitons and Plasmon Resonances in Nanostructures II |
Pages | 184-188 |
Number of pages | 5 |
Volume | 1208 |
State | Published - Oct 15 2010 |
Event | 2009 MRS Fall Meeting - Boston, MA, United States Duration: Nov 30 2009 → Dec 3 2009 |
Other
Other | 2009 MRS Fall Meeting |
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Country/Territory | United States |
City | Boston, MA |
Period | 11/30/09 → 12/3/09 |
All Science Journal Classification (ASJC) codes
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering