Publications

Pedersen, H. B. & Andersen, L. H. (2025). Spectroscopy and recurrent fluorescence from cryogenically cooled C₄⁻. Physical Review A, 112(2), Artikel 022820. https://doi.org/10.1103/g4m2-6drv

Novotny, O., Mitchell, J. B. A., LeGarrec, J. L., Florescu-Mitchell, A. I., Rebrion-Rowe, C., Svendsen, A., El Ghazaly, M. A., Andersen, L. H., Ehlerding, A., Viggiano, A. A., Hellberg, F., Thomas, R. D., Zhaunerchyk, V., Geppert, W. D., Montaigne, H., Kaminska, M., Osterdahl, F. & Larsson, M. (2005). The dissociative recombination of fluorocarbon ions: II. CF⁺. J. Phys. B: At. Mol. Opt. Phys., 38, 1471-1482.

Nielsen, I. B., Boyé-Peronne, S., El Ghazaly, M. O. A., Kristensen, M. B., Nielsen, S. B. & Andersen, L. H. (2005). Absorption spectra of photoactive yellow protein chromophores in vacuum. Biophysical Journal, 89, 2597-2604.

Nielsen, I. B., Lammich, L. & Andersen, L. H. (2006). The S₁ and S₂ excited states of gas-phase Schiff-base retinal chromophores. Physical Review Letters, 96, 018304.

Nielsen, J. S., Møller, S. P., Andersen, L. H., nullP., B. & Raarup, M. K. (2000). Electron cooling of D- at the ASTRID storage ring. Nuclear Instruments And Methods in Physics Research Section A, 441 (1-2).

Nielsen, S. B., Lapierre, A., Andersen, J. U., Pedersen, U. V., Andersen, L. H. & Tomita, S. (2001). Absorption spectrum of the green fluorescent protein chromophore anion in vacuo. Physical Review Letters, 87.

Nielsen, J. S., Møller, S. P., Andersen, L. H., Balling, P. & Raarup, M. K. (2000). Electron cooling of D^- at the ASTRID storage ring. Nucl. Instr. Meth. A, 441, 150-153.

Nielsen, S. B. & Andersen, L. H. (2006). Properties of microsolvated ions: From the microenvironment of chromophore and alkali metal ions in proteins to negative ion in water clusters. Biophysical Chemistry, 124, 229-237.

Nielsen, I. B., Petersen, M. Å., Lammich, L., Brøndsted Nielsen, M. & Andersen, L. H. (2006). Absorption Studies of Neutral Retinal Schiff Base Chromophores. Journal of Physical Chemistry Part A: Molecules, Spectroscopy, Kinetics, Environment and General Theory, 110, 12592-12596.

Nielsen, M. B., Petersen, M. A. & Andersen, L. H. (2008). Synthesis and intrinsic optical properties of retinal Schiff base and Green Fluorescent Protein chromophores. AIP Conference Proceedings, 28-32.

Musbat, L., Assis, S., Dilger, J. M., El-Baba, T. J., Fuller, D. R., Knudsen, J. L., Kiefer, H. V., Hirshfeld, A., Friedman, N., Andersen, L. H., Sheves, M., Clemmer, D. E. & Toker, Y. (2018). Action and Ion Mobility Spectroscopy of a Shortened Retinal Derivative. Journal of The American Society for Mass Spectrometry, 29(11), 2152-2159. https://doi.org/10.1007/s13361-018-2033-8

Mitchell, J. B. A., Novotny, O., Angelova, G., LeGarrec, J. L., Rebrion-Rowe, C., Svendsen, A., Andersen, L. H., Florescu-Mitchell, A. I. & Orel, A. E. (2005). Dissociative recombination of rare gas hydride ions: I. NeH⁺. J. Phys. B: At. Mol. Opt, 38, 693-703.

Mitchell, J. B. A., Novotny, O., LeGarrec, J. L., Florescu-Mitchell, A., Rebrion-Rowe, C., Stolyarov, A. V., Child, M. S., Svendsen, A., El Ghazaly, M. A. & Andersen, L. H. (2005). Dissociative recombination of rare gas hydride ions: II. ArH⁺. J. Phys. B: At. Mol. Opt. Phys., 38, 175-181.

Mitchell, J. B. A., Rebrion-Rowe, C., Le Garrec, J. L., Angelova, G., Bluhme, H., Seiersen, K. & Andersen, L. H. (2003). Branching ratios for the dissociative recombination hydrocarbon ions. I: The case of C₄H₉⁺ and C₄H₅⁺. Int. J. Mass. Spectrom., 227.

Lindkvist, T. T., Djavani-Tabrizi, I., Andersen, L. H. & Nielsen, S. B. (2025). Turning on the Fluorescence from Isolated GFP Chromophore Anions at Cryogenic Temperatures. Physical Review Letters, 134(9), Artikel 093001. https://doi.org/10.1103/PhysRevLett.134.093001

Lindkvist, T. T., Sillesen, C., Klinkby, N., Jensen, H. H., Andersen, L. H. & Nielsen, S. B. (2025). Photophysics of a Methylated GFP Chromophore Anion in Vacuo. Journal of Physical Chemistry A, 129(19), 4245–4251. https://doi.org/10.1021/acs.jpca.5c02039

Lindkvist, T. T., Rasmussen, A. P., Klinkby, N., Andersen, L. H. & Nielsen, S. B. (2025). Cryogenic Ion Spectroscopy of the Ortho Green Fluorescent Protein Chromophore Anion. Journal of Physical Chemistry Letters, 16(51), 13277-13283. https://doi.org/10.1021/acs.jpclett.5c03293

Lincke, K., Sølling, T., Andersen, L. H., Klærke, B., Rahbek, D. B., Rajput, J., Oehlenschlæger, C. B., Petersen, M. Å. & Nielsen, M. B. (2010). On the absorption of the phenolate chromophore in the green fluorescent protein-role of individual interactions. Chemical Communications, 46(5), 734-736. https://doi.org/10.1039/b920378h

Lincke, K., Langeland, J., Madsen, A. O., Kiefer, H. V., Skov, L., Gruber, E., Mikkelsen, K. V., Andersen, L. H. & Nielsen, M. B. (2018). Elucidation of the intrinsic optical properties of hydrogen-bonded and protonated flavin chromophores by photodissociation action spectroscopy. Physical Chemistry Chemical Physics, 20(45), 28678-28684. https://doi.org/10.1039/c8cp05368e

Lauridsen, A. G. S., Rasmussen, A. P., Klinkby, N. & Andersen, L. H. (2025). Conformer specific photophysical properties of an analog of the green fluorescent protein chromophore anion. Physical Chemistry Chemical Physics, 27(34), 17686-17691. https://doi.org/10.1039/d5cp02407b

Langeland, J., Kjær, C., Andersen, L. H. & Brøndsted Nielsen, S. (2018). The Effect of an Electric Field on the Spectroscopic Properties of the Isolated Green Fluorescent Protein Chromophore Anion. ChemPhysChem, 19(14), 1686-1690. https://doi.org/10.1002/cphc.201800225

Langeland, J., Persen, N. W., Gruber, E., Kiefer, H. V., Kabylda, A. M., Bochenkova, A. V. & Andersen, L. H. (2021). Controlling Light-Induced Proton Transfer from the GFP Chromophore. ChemPhysChem, 22(9), 833-841. https://doi.org/10.1002/cphc.202100068

Lammich, L., Petersen, M. Å., Brøndsted Nielsen, M. & Andersen, L. H. (2007). The Gas-Phase Absorption Spectrum of a Neutral GFP Model Chromophore. Biophysical Journal, 92, 201-207.

Lammich, L., Nielsen, I. B., Sand, H. M. B., Svendsen, A. & Andersen, L. H. (2007). Probing the Sub-Microsecond Photodissociation Dynamics in Gas-Phase Retinal Chromophores. Journal of Physical Chemistry Part A: Molecules, Spectroscopy, Kinetics, Environment and General Theory, 111(21), 4567-4572.

Lammich, L., Rajput, J. & Andersen, L. H. (2008). Photodissociation pathways of gas-phase photoactive yellow protein chromophores. Physical Review E, 78(5), 051916. https://doi.org/10.1103/PhysRevE.78.051916

Lammich, L., Andersen, L. H., Gopalan, A. & Pedersen, H. B. (2009). Experimental characterization of the metastable D₂⁻ ion by photofragment imaging. Physical Review A, 80(023413). https://doi.org/10.1103/PhysRevA.80.023413

Knudsen, J. L., Kluge, A., Bochenkova, A. V., Kiefer, H. V. & Andersen, L. H. (2018). The UV-visible action-absorption spectrum of all-trans and 11-cis protonated Schiff base retinal in the gas phase. Physical Chemistry Chemical Physics, 20(10), 7190-7194. https://doi.org/10.1039/c7cp07512j

Klinkby, N., Rasmussen, A. P., Lauridsen, A. G. S. & Andersen, L. H. (2025). Absorption and Excited-State Coherences of Cryogenically Cold Retinal Protonated Schiff Base in Vacuo. ChemPhysChem, 26(3), Artikel e202400878. https://doi.org/10.1002/cphc.202400878

Klærke, B., Holm, A. & Andersen, L. H. (2011). UV action spectroscopy of protonated PAH derivatives. Methyl substituted quinolines. Astronomy & Astrophysics (A&A), 532(A132). https://doi.org/10.1051/0004-6361/201117371

Klærke, B., Toker, J., Rahbek, D. B., Hornekær, L. & Andersen, L. H. (2013). Formation and stability of hydrogenated PAHs in gas-phase. Astronomy & Astrophysics (A&A), 549, A84. https://doi.org/10.1051/0004-6361/201219952

Kjær, C., Gruber, E., Nielsen, S. B. & Andersen, L. H. (2020). Color tuning of chlorophyll a and b pigments revealed from gas-phase spectroscopy. Physical chemistry chemical physics : PCCP, 22(36), 20331-20336. https://doi.org/10.1039/d0cp03210g

Kiefer, H., Lattouf, E., Persen, N. W., Bochenkova, A. V. & Andersen, L. H. (2015). How far can a single hydrogen bond tune the spectral properties of the GFP chromophore? Physical Chemistry Chemical Physics, 17, 20056-20060. https://doi.org/10.1039/C5CP02764K

Kiefer, H. V., Pedersen, H. B., Bochenkova, A. V. & Andersen, L. H. (2016). Decoupling Electronic versus Nuclear Photoresponse of Isolated Green Fluorescent Protein Chromophores Using Short Laser Pulses. Physical Review Letters, 117(24), Artikel 243004. https://doi.org/10.1103/PhysRevLett.117.243004

Kiefer, H. V., Gruber, E., Langeland, J., Kusochek, P. A., Bochenkova, A. V. & Andersen, L. H. (2019). Intrinsic photoisomerization dynamics of protonated Schiff-base retinal. Nature Communications, 10(1), 1-9. Artikel 1210. https://doi.org/10.1038/s41467-019-09225-7

Kessel, L., Nielsen, I. B., Johansson, LB. .-Å., Bochenkova, A. V., Bravaya, K. B. & Andersen, L. H. (2007). Gas-phase spectroscopy of protonated 3-OH kynurenine and argpyrimidine. Journal of Physical Chemistry Part A: Molecules, Spectroscopy, Kinetics, Environment and General Theory, 111(42), 10537-10543.

Kelly, D., Johnson, P., Pedersen, H. B., Søgaard, L. V.-C. & Andersen, L. H. (1996). Branching Ratio for Dissociative Recombination in ¹⁵N¹⁴N⁺. Physical Review Letters, 77, 2432.

Kella, D., Søgaard, L. V.-C., Johnson, P. J., Pedersen, H. B. & Andersen, L. H. (1997). The Source of Green Light Emission Determined from a Heavy-Ion Storage Ring Experiment. Science, 276(5318), 1530-1533.

Jensen, M. J., Bilodeau, R. C., Heber, O., Pedersen, H. B., Safvan, C. P., Urbain, X., Zajfman, D. & Andersen, L. H. (1999). Dissociative recombination and excitation of H₂O⁺ and HDO⁺. Physical Review A, 60, 2970.

Jensen, M. J., Bilodeau, R. C., Safvan, C. P., Andersen, L. H., Pedersen, H. P. & Heber, O. (2000). The dissociative recombination and branching ratio of H₃O⁺, HD₂O⁺ and D₃O⁺. Astrophysical Journal, 543, 51424.

Jensen, M. J., Pedersen, U. V. & Andersen, L. H. (2000). Stability of ground state vinylidene anions H₂C₂. Physical Review Letters, 84, 1128.

Jensen, M. J., Pedersen, H. B., Safvan, C. P., Seiersen, K., Urbain, X. & Andersen, L. H. (2001). Dissociative recombination excitation of H⁺₃. Physical Review A, 63, 52701-52701.

Jensen, M. J., Bilodeau, R. C., Safvan, C. P., Seiersen, K., Andersen, L. H., Pedersen, H. B. & Heber, O. (2000). Dissociative recombination and excitation of H₃0⁺ and D₃0⁺. Astrophysical Journal, 543(764).

Heber, O., Seiersen, K., Bluhme, H., Svendsen, A., Andersen, L. H. & Maunoury, L. (2006). Dissociative recombination of small carbon cluster cations. Physical Review A, 73, 022712.

Heber, O., Andersen, L. H., Kella, D., Vejby-Christensen, L. & Zajfman, D. (1997). The dissociative recombination of cold polyatomic molecular ions measured at a storage ring. I AIP Conference Proceedings (Bind 392, s. 233-236). American Institute of Physics.

Gruber, E., Kjær, C., Nielsen, S. B. & Andersen, L. H. (2019). Intrinsic Photophysics of Light-harvesting Charge-tagged Chlorophyll a and b Pigments. Chemistry - A European Journal, 25(39), 9153-9158. https://doi.org/10.1002/chem.201901786

Gruber, E., Strauss, M. A., Wegner, H. A. & Andersen, L. H. (2019). Action-spectroscopy studies of positively charge-tagged azobenzene in solution and in the gas-phase. Journal of Chemical Physics, 150(8), Artikel 084303. https://doi.org/10.1063/1.5085743

Gruber, E., Teiwes, R., Kjær, C., Brøndsted Nielsen, S. & Andersen, L. H. (2022). Tuning fast excited-state decay by ligand attachment in isolated chlorophylla. Physical Chemistry Chemical Physics, 24(1), 149-155. https://doi.org/10.1039/d1cp04356k

Gruber, E., Kabylda, A. M., Nielsen, M. B., Rasmussen, A. P., Teiwes, R., Kusochek, P. A., Bochenkova, A. V. & Andersen, L. H. (2022). Light Driven Ultrafast Bioinspired Molecular Motors: Steering and Accelerating Photoisomerization Dynamics of Retinal. Journal of the American Chemical Society, 144(1), 69-73. https://doi.org/10.1021/jacs.1c10752

Gopalan, A., Lammich, L. & Andersen, L. H. (2009). Dissociation lifetime studies of doubly deprotonated angiotensin peptides. Physical Review E, 79(011908). https://doi.org/10.1103/PhysRevE.79.011908

Gopalan, A., Antoine, R., Klærke, B., Lemoine, J., Racaud, A., Rahbek, D. B., Rajput, J., Dugourd, P. & Andersen, L. H. (2010). Sub-microsecond photodissociation pathways of gas phase adenosine 5'-monophosphate nudeotide ions. Physical Chemistry Chemical Physics, 12, 3486-3490. https://doi.org/10.1039/B921038E

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Lars Henrik Andersen