541 citations · 2.7k across the 40 of their papers we have counts for
10 papers · 1 filter
Enhanced circular dichroism via slow-light in dispersive structured media
Jesper Pedersen, Niels Asger Mortensen
Circular dichroism (CD) is in widespread use as a means of determining enantiomeric excess. We show how slow-light phenomena in dispersive structured media allow for a reduction in…
Slow-light enhanced optical detection in liquid-infiltrated photonic crystals
M. E. V. Pedersen, L. S. Rishoj, H. Steffensen +2
Slow-light enhanced optical detection in liquid-infiltrated photonic crystals is theoretically studied. Using a scattering-matrix approach and the Wigner-Smith delay time concept,…
Screening model for nanowire surface-charge sensors in liquid
Martin H. Sorensen, Niels Asger Mortensen, Mads Brandbyge
The conductance change of nanowire field-effect transistors is considered a highly sensitive probe for surface charge. However, Debye screening of relevant physiological liquid env…
Liquid-infiltrated photonic crystals - enhanced light-matter interactions for lab-on-a-chip applications
Niels Asger Mortensen, Sanshui Xiao, Jesper Pedersen
Optical techniques are finding widespread use in analytical chemistry for chemical and bio-chemical analysis. During the past decade, there has been an increasing emphasis on minia…
Air-clad fibers: pump absorption assisted by chaotic wave dynamics?
Niels Asger Mortensen
Wave chaos is a concept which has already proved its practical usefulness in design of double-clad fibers for cladding-pumped fiber lasers and fiber amplifiers. In general, classic…
Failure of standard approximations of the exchange coupling in nanostructures
Jesper Pedersen, Christian Flindt, Niels Asger Mortensen +1
We calculate the exchange coupling for a double dot system using a novel, numerically exact yet efficient technique, based on finite-element methods. Specifically, we evaluate the…