Continuous-wave band translation between the near-infrared and visible spectral ranges

Rui Jiang, Robert E. Saperstein, Nikola Alic, Maziar Nezhad, Colin J. McKinstrie, Joseph E. Ford, Yeshalahu Fainman, Stojan Radic

Research output: Contribution to journalArticlepeer-review

Abstract

We introduce a low refractive index layer between the metal and the gain medium in metal-coated laser resonators and demonstrate that it can significantly reduce the dissipation losses. Analysis of a gain medium waveguide shows that for a given waveguide radius, the low index layer has an optimal thickness for which the lasing threshold gain is minimal. The waveguide analysis is used for the design of a novel three-dimensional cylindrical resonator that is smaller than the vacuum wavelength in all three dimensions and exhibits a low enough threshold gain to lase at room temperature.
Original languageEnglish
Pages (from-to)58-66
Number of pages9
JournalJournal of Lightwave Technology
Volume25
Issue number1
DOIs
Publication statusPublished - 1 Jan 2007

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