The possibility for surface plasmons lasers

Document Type

Article

Publication Date

2-2-2009

Abstract

We have demonstrated for the first time, attributes of a surface Plasmons' laser: threshold, gain, spectral line narrowing and feedback in the visible range. The surface metallic waveguides were consisted of a nanoscale hole-array in a 50 nm thick layer of aluminum oxide on top of aluminum substrate (anodized aluminum oxide or, AAO). In some cases, two-layer graphene was added on top of the perforated oxide layer, as well. The sub-wavelength array of holes enabled coupling to and from the waveguides as well as, providing feedback to the surface modes. The gain media molecules (fluorescein) were imbedded in the structure's pores. Threshold and spectral line narrowing of 30% were clearly demonstrated when pumped with a pulsed laser. © 2009 Optical Society of America.

Identifier

59849119441 (Scopus)

Publication Title

Optics Express

External Full Text Location

https://doi.org/10.1364/OE.17.001622

e-ISSN

10944087

First Page

1622

Last Page

1627

Issue

3

Volume

17

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