Browsing NTNU Open by Author "Muri, Harald Ian"
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A Single Point, Multi-Parameter, Fiber Optic Sensor Based on a Combination of Interferometry and LSPR
Muri, Harald Ian; Bano, Andon; Hjelme, Dag Roar (Journal article; Peer reviewed, 2018)We demonstrate a new single point, multi-parameter, fiber optic sensor concept based on a combination of interferometric and plasmonic sensor modalities on an optical fiber end face. The sensor consists of an extrinsic ... -
Dual parameter fiber optic sensor combining a Fabry-Perot and a Mach-Zehnder interferometer
Hammarling, Krister; Wahl, Markus Solberg; Muri, Harald Ian; Engholm, Magnus; Hjelme, Dag Roar (Journal article, 2017)A new concept for dual parameter fiber optic sensor has been developed and characterized, both in a two-fiber and single-fiber configuration. The liquid sensor measures ethanol concentration with a stimuli responsive ... -
First step towards an interferometric and localized surface plasmon fiber optic sensor
Muri, Harald Ian; Bano, Andon; Hjelme, Dag Roar (Journal article; Peer reviewed, 2017)We present a first demonstration of a novel multi-parameter fiber optic (FO) sensor concept based on gold nanoparticles (GNP) embedded in a stimuli-responsive hydrogel material. A hemispherical hydrogel immobilized on the ... -
LSPR and Interferometric Sensor Modalities Combined Using a Double-Clad Optical Fiber
Muri, Harald Ian; Bano, Andon; Hjelme, Dag Roar (Journal article; Peer reviewed, 2018)We report on characterization of an optical fiber-based multi-parameter sensor concept combining localized surface plasmon resonance (LSPR) signal and interferometric sensing using a double-clad optical fiber. The sensor ... -
LSPR Coupling and Distribution of Interparticle Distances between Nanoparticles in Hydrogel on Optical Fiber End Face
Muri, Harald Ian; Hjelme, Dag Roar (Journal article; Peer reviewed, 2017)We report on a new localized surface plasmon resonance (LSPR)-based optical fiber (OF) architecture with a potential in sensor applications. The LSPR-OF system is fabricated by immobilizing gold nanoparticles (GNPs) in a ... -
Mapping nanoparticles in hydrogels: A comparison of preparation methods for electron microscopy
Muri, Harald Ian; Hoang, Linh; Hjelme, Dag Roar (Journal article; Peer reviewed, 2018)The distribution of noble metal nanoparticles (NMNPs) in hydrogels influences their nanoplasmonic response and signals used for biosensor purposes. By controlling the particle distribution in NMNP-nanocomposite hydrogels, ...