49 citations · 96 across the 5 of their papers we have counts for
5 papers
Intracavity trace molecular detection with a broadband mid-IR frequency comb source
Magnus W. Haakestad, Tobias P. Lamour, Nick Leindecker +2
Ultrasensitive detection of methane, isotopic carbon dioxide, carbon monoxide, formaldehyde, acetylene and ethylene is performed in the spectral range 2.5 - 5 μm using intracavity…
Reciprocity and the scattering matrix of waveguide modes
Guro K. Svendsen, Magnus W. Haakestad, Johannes Skaar
The implications of the Lorentz reciprocity theorem for a scatterer connected to waveguides with arbitrary modes, including degenerate, evanescent, and complex modes, are discussed…
Inverse scattering of dispersive stratified structures
Johannes Skaar, Magnus W. Haakestad
We consider the inverse scattering problem of retrieving the structural parameters of a stratified medium consisting of dispersive materials, given knowledge of the complex reflect…
250-MHz synchronously pumped optical parametric oscillator at 2.25-2.6 μm and 4.1-4.9 μm
Nicola Coluccelli, Helge Fonnum, Magnus Haakestad +5
A compact and versatile femtosecond mid-IR source is presented, based on an optical parametric oscillator (OPO) synchronously pumped by a commercial 250-MHz Er:fiber laser. The mid…
The effect of gain saturation in a gain compensated perfect lens
Marte P. Hatlo Andresen, Aleksander V. Skaldebø, Magnus W. Haakestad +2
The transmission of evanescent waves in a gain-compensated perfect lens is discussed. In particular, the impact of gain saturation is included in the analysis, and a method for cal…