Waveguides in polycrystalline diamond for mid- IR sensing

Mikael Malmström, Mikael Karlsson, Pontus Forsberg, Yixiao Cai, Fredrik Nikolajeff, Fredrik Laurell*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)

Abstract

8 mm long channel waveguides were manufactured in polycrystalline diamond with inductively coupled plasma etching and characterized in terms of mode-profile and propagation loss in the 1.5 - 3.4 μm spectral region. As proof of principle, the waveguides were evaluated in an evanescent field sensing setup targeting the CH absorption peak of isopropanol at ~3.4 μm, showing good agreement with numerical finite element simulations.

Original languageEnglish
Pages (from-to)1286-1295
Number of pages10
JournalOptical Materials Express
Volume6
Issue number4
DOIs
Publication statusPublished - 1 Apr 2016
Externally publishedYes

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