Waveguides in polycrystalline diamond for mid- IR sensing

Mikael Malmström; Mikael Karlsson; Pontus Forsberg; Yixiao Cai; Fredrik Nikolajeff; Fredrik Laurell

doi:10.1364/OME.6.001286

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 journal › Article

15 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 language	English
Pages (from-to)	1286-1295
Number of pages	10
Journal	Optical Materials Express
Volume	6
Issue number	4
DOIs	https://doi.org/10.1364/OME.6.001286
Publication status	Published - 1 Apr 2016
Externally published	Yes

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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.",

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AU - Cai, Yixiao

AU - Nikolajeff, Fredrik

AU - Laurell, Fredrik

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AB - 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.

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