Abstract
We demonstrate polarization control in optically-pumped single GaN nanowire lasers fabricated by a top-down method. By placing the GaN nanowires onto gold substrates, the naturally occurring randomly orientated elliptical polarization of nanowire lasers is converted to a linear polarization that is oriented parallel to the substrate surface. Confirmed by simulation results, this polarization control is attributed to a polarization-dependent loss induced by the gold substrate, which breaks the mode degeneracy of the nanowire and forms two orthogonally polarized modes with largely different cavity losses.
Original language | English |
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Pages (from-to) | 19198-19203 |
Number of pages | 6 |
Journal | Optics Express |
Volume | 22 |
Issue number | 16 |
DOIs | |
Publication status | Published - 11 Aug 2014 |
Keywords
- nanostructure fabrication
- semiconductor lasers
- quantum well devices
- photoluminescence