Department of Physics




Marta Espina Palanco, Nils Skovgaard Andersen, Jesper Hansen, Kirstine Berg-Sørensen and Claus Hélix-Nielsen: "Tuning biomimetic membrane barrier properties by hydrocarbon, cholesterol and polymeric additives", accepted for Bioinspiration & Biomimetics, Submitted April 2017, Accepted October 2017 DOI: 10.1088/1748-3190/aa92be

Paolo Minzioni, Roberto Osellame, Cinzia Sada, S Zhao, F G Omenetto, Kristinn B Gylfason, Tommy Haraldsson, Yibo Zhang, Aydogan Ozcan, Adam Wax, Frieder Mugele, Holger Schmidt, Genni Testa, Romeo Bernini, Jochen Guck, Carlo Liberale, Kirstine Berg-Sørensen, Jian Chen, Markus Pollnau, Sha Xiong, Ai-Qun Liu, Chia-Chann Shiue, Shih-Kang Fan, David Erickson and David Sinton: "Roadmap for Optofluidics", Journal of Optics 19 093003 (50pp) (2017)

Kamilla Norregaard, Ralf Metzler, Christine M. Ritter, Kirstine Berg-Sørensen,and Lene B. Oddershede: "Manipulation and motion of organelles and single molecules in living cells", Chemical Reviews 117 pp. 4342-4375 (2017)

K. H. Jensen, K. Berg-Sørensen, H. Bruus, N. M. Holbrook, J. Liesche, A. Schulz, M. A. Zwieniecki and T. Bohr: "Sap flow and sugar transport in plants", Rev. Mod. Phys. 88
035077 (2016); DOI: 10.1103/RevModPhys.88.035007

K. Berg-Sørensen: "Optical two-beam traps in microfluidic systems", Japanese Journal of Applied Physics 55 08RA01 (2016); DOI: 10.7567/JJAP.55.08RA01

T. Yang, F. Bragheri, G. Nava, I. Chiodi, C. Mondello, R. Osellame, K. Berg-Sørensen, I. Cristiani, and P. Minzioni: "A comprehensive strategy for the analysis of acoustic compressibility and optical deformability on single cells", Scientific Reports 6 23946 (2016); DOI: 10.1038/srep23946

M. Matteucci, M. Triches, G. Nava, A. Kristensen, M. R. Pollard, K. Berg-Sørensen, and R. J. Taboryski: "Fiber-based, injection-molded optofluidic systems: improvements in assembly and applications", Micromachines, 6(12), 1971-1983; 2015

Giovanni Nava, Francesca Bragheri, Tie Yang, Paolo Minzioni, Roberto Osellame, Ilaria Cristiani, and Kirstine Berg-Sørensen: "All silica microfluidic stretcher chip with acoustophoretic prefocusing", Microfluid Nanofluid 19 837–844; 2015

M Khoury, C Vannahme, K T Sørensen, A Kristensen and K Berg-Sørensen: "Monolithic integration of DUV-induced waveguides into plastic microfluidic chip for optical manipulation".
Microelectronic Engineering 121C, 5-9; 2014

Kamilla Nørregaard, Liselotte Jauffred, Kirstine Berg-Sørensen and Lene Oddershede: "Optical manipulation of single molecules in the living cell". Physical Chemistry Chemical Physics DOI:10.1039/c4cp00208c ; 2014

Josep Mas, Andrew C Richardson, S Nader S Reihani, 
Lene B Oddershede and Kirstine Berg-Sørensen: "
Quantitative determination of optical trapping strength and viscoelastic moduli inside living cells". Physical Biology 10, 046006 (10pp); 2013

Louise Sejling Haaning, Kaare Hartvig Jensen, Claus Hélix-Nielsen, Kirstine Berg-Sørensen, and Tomas Bohr: "Efficiency of osmotic pipe flows". Physical Review E 87, 053019 (7pp); 2013

Thue Bjerring Lindballe, Martin Verner Gammelgaard Kristensen, Kirstine Berg-Sørensen, Søren Rud Keiding, and Henrik Stapelfeldt: "Pulsed laser manipulation of an optically trapped bead: Averaging thermal noise and measuring the pulsed force amplitude". Optics Express 21, 1986-1996; 2013
K. H. Jensen, K. Berg-Sørensen, S. M. Friis, and T. Bohr: "Analytic solutions and universal properties of sugar loading models in Münch phloem flow". Journal of Theoretical Biology 304, 286–296; 2012

J.-H. Jeon, V. Tejedor, S. Burov, E. Barkai, C. Selhuber-Unkel, K. Berg-Sørensen, L. Oddershede, and R. Metzler: "In Vivo Anomalous Diffusion and Weak Ergodicity Breaking of Lipid Granules". Physical Review Letters 106, 048103 (4pp); 2011

M. Fischer, A. C. Richardson, S. N. S. Reihani, L. Oddershede, and K. Berg-Sørensen: "Active-passive calibration of optical tweezers in viscoelastic media". Review of Scientific Instruments 81, 01503 (10pp); 2010

T. Winther, L. Xu, K. Berg-Sørensen, S. Brown, and L. B. Oddershede: "Effect of energy metabolism on protein mobility in the bacterial outer membrane". Biophysical Journal 97, 1305–1312; 2009

C. Selhuber-Unkel, P. Yde, K. Berg-Sørensen and L. B. Oddershede: "Variety in intracellular diffusion during the cell cycle". Physical Biology 6, 025010 (9pp); 2009
D. Selmeczi, S. F. Tolic-Nørrelykke, E. Schäffer, P. H. Hagedorn, S. Mosler, K. Berg-
Sørensen, N. B. Larsen, and H. Flyvbjerg: "Brownian motion after Einstein and Smoluchowski: Some new applications and new experiments". Acta Physica Polonica B 38, 2407–2431; 2007

M. Fischer and K. Berg-Sørensen: "Calibration of trapping force and response function of optical tweezers in viscoelastic media". Journal of Optics A: pure and applied optics 9, S239-S250; 2007

P. M. Hansen, I. M. Tolic-Nørrelykke, H. Flyvbjerg, and K. Berg-Sørensen: "tweezercalib 2.1: Faster version of MatLab package for precise calibration of optical tweezers". Computer Physics Communications 175, 572–573; 2006

E.-L. Munteanu, A. L. Olsen, I.M. Tolic-Nørrelykke, H. Flyvbjerg, L. Oddershede, and
K. Berg-Sørensen: "Quantitative studies of subdiffusion in living cells and actin networks". Biophysical Review and Letters, 1, 411–422; 2006

J. Kisbye Dreyer, K. Berg-Sørensen and L. Oddershede: "Quantitative approach to small-scale non-equilibrium systems". Physical Review E 73, 051110 (6pp); 2006

S. F. Tolic-Nørrelykke, M. Rasmussen, F. R. Pavone, K. Berg-Sørensen, and L. Oddershede: "Stepwise bending of DNA by a single TATA-box Binding Protein". Biophysical Journal 90, 3694–3703; 2006

K. Berg-Sørensen, E. J. G. Peterman, T. Weber, C. F. Schmidt, and H. Flyvbjerg: "Power spectrum analysis for optical tweezers, II: Laser wavelength dependence of unintended filtering and how to achieve high band-width with precision". Review of Scientific Instruments 77, 063106 (10pp); 2006

P. M. Hansen, I. M. Tolic-Nørrelykke, H. Flyvbjerg, and K. Berg-Sørensen: "tweezercalib 2.0: Faster version of MatLab package for precise calibration of optical tweezers". Computer Physics Communications 174, 518–520; 2006
Kirstine Berg-Sørensen and Henrik Flyvbjerg: “The color of thermal noise in classical Brownian motion: A feasibility study of direct experimental observation”. New Journal of Physics 7, 38; 2005

Iva Marija Tolic-Nørrelykke, Emilia-Laura Munteanu, Genevieve Thon, Lene Oddershede, and Kirstine Berg-Sørensen: “Anomalous diffusion in living yeast cells”. Physical Review Letters 93, 078102 (4pp); 2004

Jakob Kisbye Dreyer, Kirstine Berg-Sørensen, and Lene Oddershede: “Improved axial position detection in optical tweezers measurements”. Applied Optics 43, 1991-1995; 2004

Iva Marija Tolic-Nørrelykke, Kirstine Berg-Sørensen and Henrik Flyvbjerg: ”MatLab program for precision calibration of optical tweezers“. Computer Physics Communications 159, 225-240; 2004 - and CPC Program Library, 2004

Kirstine Berg-Sørensen and Henrik Flyvbjerg: ”Power spectrum analysis for optical tweezers”. Review of Scientific Instruments, 75, 594-612; 2004

Lene Oddershede, Henrik Flyvbjerg and Kirstine Berg-Sørensen: ”Single-molecule experiment with optical tweezers: Improved analysis of the diffusion of the lambda-receptor in E. coli 's outer membrane”. Journal of  Physics Condensed Matter 15, S1737-S1746; 2003

Kirstine Berg-Sørensen, Lene Oddershede, Ernst-Ludwig Florin and Henrik Flyvbjerg: “Unintended Filtering in a Typical Photodiode Detection System for Optical Tweezers”. Journal of Applied  Physics 93, pp. 3167-3177; 2003

Lene Oddershede, Jakob Kisbye Dreyer, Sonia Grego, Stanley Brown, and Kirstine Berg-Sørensen: “The motion of a single molecule, the lambda-receptor, in the bacterial outer membrane”. Biophysical Journal 83, 3152-3161; 2002

J. Piilo, K.-A. Suominen, and K. Berg-Sørensen: “Atomic collision dynamics in optical lattices”. Physical Review A65, 033411-1 - 033411-16; 2002

J.Piilo, K.-A. Suominen and K. Berg-Sørensen: ”Cold collisions between atoms in optical lattices”. Journal of Physics B: Atomic Molecular and Optical Physics 34, L231-L237; 2001

Lene Oddershede, Sonia Grego, Simon F. Nørrelykke, and Kirstine Berg-Sørensen: “Optical tweezers: a probe for biological surfaces”. Probe Microscopy 2, 129-137; 2001

Kirstine Berg-Sørensen and Klaus Mølmer: “Bose-Einstein condensates in spatially periodic potentials”, Physical Review A58, 1480-1484; 1998

Kirstine Berg-Sørensen: “Kinetics for evaporative cooling of a trapped gas”, Physical Review A55, 1281-1287; 1997. Erratum ibid 56, 3308-3309; 1997

Kirstine Berg-Sørensen, Michael M. Burns, J. A. Golovchenko and Lene Vestergaard Hau: “Wave guide for cold atoms: Spin-1 magnetic particles and a filamentary current”. Physical Review A53, 1653-1668; 1996

Yvan Castin, Kirstine Berg-Sørensen, Jean Dalibard and Klaus Mølmer: “Two Dimensional Sisyphus Cooling”. Physical Review A50, 5092-5115; 1994

Kirstine Berg-Sørensen: ”Two-dimensional Sisyphus cooling in a three-beam laser configuration”, Physical Review A49, R4297-R4300; 1994

K. Berg-Sørensen, Y. Castin, K. Mølmer and J. Dalibard: “Cooling and Tunneling of Atoms in a 2D Laser Field”. Europhys. Lett. 22, 663-668; 1993

Kirstine Berg-Sørensen, Yvan Castin, Ejvind Bonderup and Klaus Mølmer: “Momentum Diffusion of Atoms Moving in Laser Fields”. Journal of Physics B25, 4195-4215; 1992

J. Hangst, K. Berg-Sørensen, P.S. Jessen, M. Kristensen, K. Mølmer, J.S. Nielsen, O. Poulsen, J.P. Schiffer, P. Shi and S.P. Møller: “Laser Cooling of Stored Ions in ASTRID. A Storage Ring for Ions and Electrons”. Nuclear Instruments and Methods B68, 17-22; 1992

Klaus Mølmer, Kirstine Berg-Sørensen and Ejvind Bonderup: “Forces on Atoms in Laser Fields with Multidimensional Periodicity”. Journal of Physics B24, 2327-2342; 1991

Christine M Ritter, Josep Mas, Lene Oddershede and Kirstine Berg-Sørensen: “Quantifying Force and Viscoelasticity Inside Living Cells Using an Active-Passive Calibrated Optical Trap”, in “Optical Tweezers: Methods and Protocols”, A. Gennerich, ed.; Springer MiMB

Kirstine Berg-Sørensen: “Optical Manipulation Techniques”, in “Handbook of Micro and Nano Techniques for the Manipulation of Biological Samples”, W. Svendsen, M. Dimaki and J. Castillo, eds.; CRC Press

D. Selmeczi, S. Tolic-Nørrelykke, E. Schäffer, P. H. Hagedorn, S. Mosler, K. Berg-Sørensen, N. B. Larsen, and H. Flyvbjerg: “Brownian Motion after Einstein: Some new applications and new experiments”, Proceedings of the 131st Nobel Symposium (2005)

Kirstine Berg-Sørensen and Klaus Mølmer: “Bose-Einstein Condensates in Spatially Periodic Potentials”, pp. 333-338, in Proceedings of the conference New Directions in Atomic Physics, C. T. Whelan, R. M. Dreizler, J. H. Macek, and H. R. J. Walters, eds., Plenum Publishing Corporation (1999)

Yvan Castin, Kirstine Berg-Sørensen, Klaus Mølmer, and Jean Dalibard: “Multidimensional Laser Cooling: Quantum Approaches”, Fundamentals of Quantum Optics III , Proceedings of the Fifth Meeting on Laser Phenomena, Kuthrai, Austria, March 1993, F. Ehlotzky ed.; Springer Verlag (1993)

K. Berg-Sørensen, J. S. Hangst, M. Kristensen, K. Mølmer, J. S. Nielsen, J. P. Schiffer, P. Shi, and O. Poulsen: “Physics with Stored Lithium Ions: Intrabeam Relaxation, Laser Cooling and Observation of a Cold and Long Lived Ion Beam”, Proceedings of the 19th INS Symposium, Cooler Rings and their Applications, eds. T. Katayama and A. Noda , 80-89 (1991). World Scientific, Singapore

T. Yang, V. Vitali, F. Bragheri, G. Nava, I. Chiodi, C. Mondello, R. Osellame, K. Berg-Sørensen, I. Cristiani, P. Minzioni: "A Micro-Opto-Acousto-Fluidic Chip for Single Cell Mechanics Evaluation", Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference (CLEO/Europe-EQEC) (2017). DOI: 10.1109/CLEOEEQEC.2017.8087782

Henrik Thirstrup, Tony B. Rungling, Mustafa Z. Al-Hamdani, Ragavan Pathanchalinathan, Morten H. Dziegiel, Anders Kristensen, Rodolphe Marie and Kirstine Berg-Sørensen: "Optical and Hydrodynamic Stretching of Single Cells from Blood", OSA Biophotonics Congress; Optical Trapping Applications (2017). DOI: 10.1364/OTA.2017.OtM4E.1

M. E. Palanco, D. Catak, R. Marie, M. Matteucci, B. Bilenberg, A. Kristensen, and
K. Berg-Sørensen: "Optical two-beam trap in a polymer microfluidic chip", Proceedings of SPIE vol 9922 (2016).

M. Khoury, R. Barnkob, L. Laub Busk, P. Tidemand-Lichtenberg, H. Bruus, and K.
Berg-Sørensen: "Optical stretching on chip with acoustophoretic prefocusing", Proceedings of SPIE vol 8458, 84581E (2012).

Mario Fischer, Andrew C. Richardson, S. Nader S. Reihani, Lene Oddershede, and Kirstine Berg-Sørensen: “Validation of FDT calibration method in complex media”, Proceedings of SPIE vol 7038, 703822 (2008)

Kirstine Berg-Sørensen, Erwin J. G. Peterman, Lene Oddershede, Meindert van Dijk, Ernst-Ludwig Florin, Christoph F. Schmidt, and Henrik Flyvbjerg: “Parasitic filtering in position detection systems for optical tweezers”, Proceedings of SPIE 5514, pp. 419-427 (2004)

Kirstine Berg-Sørensen, Lene Oddershede and Henrik Flyvbjerg: ”Optical Tweezers as a Tool of Precision: Single-Molecule Mobility as Case Study”, Proceedings of SPIE 5322 , pp. 64-74 (2004)


Kirstine Berg-Sørensen, Mario Fischer, Poul Martin Hansen og Lene Oddershede: ”Cellers nano-mekanik”, Kvant March 2007, pp. 4-6

Henrik Flyvbjerg, Kirstine Berg-Sørensen og Lene Oddershede: ”Brownske bevægelser, fra Einstein til optiske pincetter”, Kvant May 2005, pp. 6-9

Kirstine Berg-Sørensen: “Nobelprisen i fysik 2001”, Kvant February 2002. (A semi-popular description of Bose-Einstein condensation and the work of Cornell, Ketterle and Wieman leading to the 2001 Nobel Prize in Physics) (4 1/2 page)

Kirstine Berg-Sørensen: “Optisk pincet i biologisk fysik”, Gamma 119, Oktober 2000. (popular account of the physics of optical tweezers, and their use in biological physics meant for first year students of physics, and 3rd year high school students with high-level physics. In Danish. Published by the Niels Bohr Institute, University of Copenhagen) (7 pages)

Kirstine Berg-Sørensen: ”Sisyfos, laserlys og kolde atomer”, Naturligvis 1998. (popular account of laser cooling, trapping, and Bose condensation in Danish, published by the Faculty of Science, University of Copenhagen) (4 pages)
Last updated 09.11.2017