Abstract
Future technologies require faster data transfer and processing with lower loss. A photonic diode could be an attractive alternative to the present Si-based electronic diode for rapid optical signal processing and communication. Here, we report highly asymmetric photonic diode behavior with low scattering loss, from tapered core-shell quantum well semiconductor rods that were fabricated to have a large gradient in their bandgap energy along their growth direction. Local laser illumination of the core-shell quantum well rods yielded a huge contrast in light output intensities from opposite ends of the rod.
Original language | English |
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Pages (from-to) | 4937-4942 |
Number of pages | 6 |
Journal | Nano Letters |
Volume | 14 |
Issue number | 9 |
DOIs | |
Publication status | Published - 2014 Sept 10 |
Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2014 American Chemical Society.
Keywords
- GaN/InGaN core-shell quantum well
- Photonic diode
- asymmetric waveguide
- nonlinear
ASJC Scopus subject areas
- Bioengineering
- General Chemistry
- General Materials Science
- Condensed Matter Physics
- Mechanical Engineering