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Nonlinear Photonic Diode Behavior in Energy-Graded Core–Shell Quantum Well Semiconductor Rod

Authors :
Yong-Hoon Cho
Suk Min Ko
Su-Hyun Gong
Source :
Nano Letters. 14:4937-4942
Publication Year :
2014
Publisher :
American Chemical Society (ACS), 2014.

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.

Details

ISSN :
15306992 and 15306984
Volume :
14
Database :
OpenAIRE
Journal :
Nano Letters
Accession number :
edsair.doi.dedup.....0df280519a49b48e2bf04707bbb70149
Full Text :
https://doi.org/10.1021/nl5007905