Meet the Founder

Kristinn Johnsen founded Mentis Cura in Reykjavík, Iceland in 2004.

Kristinn has a solid and extensive scientific background. He holds a Ph.D. in theoretical solid state physics from the Technical University of Denmark and serves as Mentis Cura's Chief Scientific Officer.

Publications

1. Jauho AP, Johnsen K , “Dynamical Franz-Keldysh effect”, PHYSICAL REVIEW LETTERS 76 (24): 4576-4579 JUN 10 1996
2. Johnsen K, Yngvason J , “Density-matrix-functional calculations for matter in strong magnetic fields: Ground states of heavy atoms”, PHYSICAL REVIEW A 54 (3): 1936-1946 SEP 1996
3. Johnsen K, Jauho AP, “Nonequilibrium absorption in semiconductors and the dynamical Franz-Keldysh effect”, PHYSICA SCRIPTA T69: 177-180 1997
4. Johnsen K, Jauho AP, “Linear optical absorption in THz irradiated undoped semiconductor superlattices”, PHYSICA STATUS SOLIDI B-BASIC RESEARCH 204 (1): 55-57 NOV 1997
5. Nordstrom KB, Johnsen K, Allen SJ, Jauho AP, Birnir B, Kono J, Noda T, Akiyama H, Sakaki H , “Observation of dynamical Franz-Keldysh effect”, PHYSICA STATUS SOLIDI B-BASIC RESEARCH 204 (1): 52-54 NOV 1997
6. Johnsen K, Jauho AP, “Optics of excitons in THz irradiated quantum wells”, PHYSICA STATUS SOLIDI A-APPLIED RESEARCH 164 (1): 553-556 NOV 16 1997
7. Johnsen K, Jauho AP, “Linear optical absorption spectra of mesoscopic structures in intense THz fields: Free-particle properties”, PHYSICAL REVIEW B 57 (15): 8860-8872 APR 15 1998
8. Nordstrom KB, Johnsen K, Allen SJ, Jauho AP, Birnir B, Kono J, Noda T, Akiyama H, Sakaki H , “Excitonic dynamical Franz-Keldysh effect”, PHYSICAL REVIEW LETTERS 81 (2): 457-460 JUL 13 1998
9. Johnsen K, Jauho AP, “Quasienergy spectroscopy of excitons”, PHYSICAL REVIEW LETTERS 83 (6): 1207-1210 AUG 9 1999
10. Mortensen NA, Johnsen K, Jauho AP, Flensberg K , “Contact resistance of quantum tubes”, SUPERLATTICES AND MICROSTRUCTURES 26 (6): 351-361 DEC 1999
11. Johnsen K, “Spin-dynamic field coupling in strongly terahertz-field-driven semiconductors: Local inversion symmetry breaking”, PHYSICAL REVIEW B 62 (16): 10978-10983 OCT 15 2000
12. Johnsen K, Kavoulakis GM, “Probing Bose-Einstein condensation of excitons with electromagnetic radiation”, PHYSICAL REVIEW LETTERS 86 (5): 858-861 JAN 29 2001
13. Meyvantsson I, Olafsson S, Johnsen K, Gudmundsson JT,” Preparation and characterization of magnetron sputtered, ultra-thin Cr0.63Mo0.37 films on MgO”, JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A 22 (4): 1636-1639 JUL-AUG 2004
14. Gudmundsson, S; Gudmundsson, T; Helgason, J; Johnsen K et al.” New diagnostic markers: Effects of scopolamine on EEG in Alzheimer's disease”, INTERNATIONAL PSYCHOGERIATRICS  Volume: 17   Supplement: 2   Pages: 148-149   Published: 2005
15. Gudmundsson, Steinn; Runarsson, Thomas Philip; Sigurdsson, Sven; Johnsen K et al. “Reliability of quantitative EEG features”, CLINICAL NEUROPHYSIOLOGY  Volume: 118   Issue: 10   Pages: 2162-2171    Published: OCT 2007
16. Snaedal, J.; Johannesson, G. H.; Gudmundsson, Th. E.; Johnsen K et al. “The use of EEG in Alzheimer's disease, with and without scopolamine - A pilot study”, CLINICAL NEUROPHYSIOLOGY  Volume: 121   Issue: 6   Pages: 836-841   Published: JUN 2010
17. Snaedal, Jon; Johannesson, Gisli Holmar; Gudmundsson, Thorkell Eli; Johnsen K et al. “Diagnostic Accuracy of Statistical Pattern Recognition of Electroencephalogram Registration in Evaluation of Cognitive Impairment and Dementia”, DEMENTIA AND GERIATRIC COGNITIVE DISORDERS  Volume: 34   Issue: 1   Pages: 51-60   DOI:10.1159/000339996   Published: 2012
18. Johannsson, Magnus; Snaedal, Jon; Johannesson, Gisli Holmar; Gudmundsson, Thorkell Eli; Johnsen, Kristinn “The acetylcholine index: an electroencephalographic marker of   cholinergic activity in the living human brain applied to Alzheimer's disease and other dementias.”, DEMENTIA AND GERIATRIC COGNITIVE DISORDERS Volume: 39 Issue 3-4  Pages: 132-42   DOI: 10.1159/000367889 Published: 2015 (Epub 2014 Nov 27)
19. Helgadottir, Halla; Gudmundsson, Olafur O.; Baldursson, Gisli; Magnusson, Pall; Blin, Nicolas; Brynjolfsdottir, Berglind; Emilsdottir, Asdis; Gudmundsdottir, Gudrun B.;   Lorange, Malfridur; Newman, Paula K; Johannesson, Gisli H.; Johnsen, Kristinn “Electroencephalography as a clinical tool for diagnosing and monitoring attention deficit hyperactivity disorder: a cross-sectional study“ BMJ OPEN  Volume: 5   Issue: 1     Article Number: e005500   Published: 2015