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Christopher Andrew Dirdal

Research Scientist

Christopher Andrew Dirdal

Research Scientist

Christopher Andrew Dirdal
Phone: +47 930 25 739
Department: Microsystems and Nanotechnology
Office: Oslo

Publications and responsibilities

Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1674700

We state and compare four different definitions of magnetic permeability for periodic, artificial media, or metamaterials. The connections among them, and properties in general, are discussed in detail, including causality, passivity, symmetry, asymptotic behavior, and origin dependence. The analysi...

Year 2019
Type Journal publication
Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1640302

The higher order multipoles above the electric quadrupole are commonly neglected in metamaterial homogenization. We show that they nevertheless can be significant when the second-order spatial dispersive effects, such as the magnetic response, are considered. In this respect, they can be equally imp...

Authors Dirdal Christopher Andrew Hågenvik Hans Olaf Haave Haakon Aamodt Skaar Johannes
Year 2018
Type Journal publication
Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1631229

Bimorphly actuated piezoelectric thin films offer an efficient low-power route for generating microelectromechanical motion compared to e.g. electrostatic or thermo-mechanical actuation principles [1]. This is since a large effective in-plane stress can be generated by applying relatively low voltag...

Authors Dahl-Hansen Runar Plunnecke Dirdal Christopher Andrew Gjessing Jo Tyholdt Frode Tybell Thomas
Year 2018
Type Conference lecture and academic presentation