dr. Jeroen Koelemeij

dr.

20002019
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Research Output 2000 2019

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Article
2018

Measurement of optical to electrical and electrical to optical delays with ps-level uncertainty

Peek, H. Z., Pinkert, T. J., Jansweijer, P. P. M. & Koelemeij, J. C. J., 28 May 2018, In : Optics Express. 26, 11, p. 14650-14660 11 p.

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access
time lag
transmitter receivers
fiber optics
waveforms

Proton-electron mass ratio from HD+ revisited

Patra, S., Karr, J. P., Hilico, L., Germann, M., Korobov, V. I. & Koelemeij, J. C. J., 28 Jan 2018, In : Journal of Physics B: Atomic, Molecular and Optical Physics. 51, 2, 024003.

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access
2017

Ghost features in Doppler-broadened spectra of rovibrational transitions in trapped HD+ ions

Patra, S. & Koelemeij, J. C. J., 1 Feb 2017, In : Journal of Molecular Spectroscopy. 332, p. 109-116 8 p.

Research output: Contribution to JournalArticleAcademicpeer-review

Trapped ions
ghosts
Doppler effect
Ions
Beryllium

High-precision spectroscopy of the HD+ molecule at the 1-p.p.b. level

Biesheuvel, J., Karr, J. P., Hilico, L., Eikema, K. S. E., Ubachs, W. & Koelemeij, J. C. J., 1 Jan 2017, In : Applied Physics B. Lasers and Optics. 123, 1, 23.

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access
molecular theory
Spectroscopy
deviation
Molecules
frequency measurement

Study of extra wide coherent optical combs generated by a QW-based integrated passively mode-locked ring laser

Moskalenko, V., Koelemeij, J., Williams, K. & Bente, E., 1 Apr 2017, In : Optics Letters. 42, 7, p. 1428-1431

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access
2016

Hydrogen molecular ions: New schemes for metrology and fundamental physics tests

Karr, J. P., Patra, S., Koelemeij, J. C. J., Heinrich, J., Sillitoe, N., Douillet, A. & Hilico, L., 4 Jul 2016, In : Journal of Physics: Conference Series. 723, 1, 012048.

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access
hydrogen ions
molecular ions
metrology
clocks
physics

Hydrogen molecular ions for improved determination of fundamental constants

Karr, J-P., Hilico, L., Koelemeij, J. C. J. & Korobov, V. I., 2016, In : Physical Review A. 94, 5, 050501.

Research output: Contribution to JournalArticleAcademicpeer-review

hydrogen ions
molecular ions
protons
mass ratios
deuterons

Physics beyond the Standard Model from hydrogen spectroscopy

Ubachs, W. M. G., Koelemeij, J. C. J., Eikema, K. S. E. & Salumbides, E. J., 2016, In : Journal of Molecular Spectroscopy. 320, p. 1-12

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access
Absorption spectra
Hydrogen
Physics
Spectroscopy
absorption spectra

Probing QED and fundamental constants through laser spectroscopy of vibrational transitions in HD

Biesheuvel, J., Karr, J-P., Hilico, L., Eikema, K. S. E., Ubachs, W. M. G. & Koelemeij, J. C. J., 2016, In : Nature Communications. 7, 10385.

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access
Laser spectroscopy
hydrogen ions
molecular ions
laser spectroscopy
Protons

Theoretical Hyperfine Structure of the Molecular Hydrogen Ion at the 1 ppm Level

Korobov, V. I., Koelemeij, J. C. J., Hilico, L. & Karr, J-P., 2016, In : Physical Review Letters. 116, 5, 053003.

Research output: Contribution to JournalArticleAcademicpeer-review

hydrogen ions
molecular ions
hyperfine structure
inclusions
nuclei

White Rabbit Precision Time Protocol on Long-Distance Fiber Links

Dierikx, E. F., Dierikx, A. E., Fordell, T., Myyry, J., Koponen, P., Merimaa, M., Pinkert, T. J., Koelemeij, J. C. J., Peek, H. Z. & Smets, R., 2016, In : IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control. 63, 7, p. 945-952

Research output: Contribution to JournalArticleAcademicpeer-review

rabbits
Network protocols
fibers
Fibers
Optical fibers
2015

Effect of soil temperature on optical frequency transfer through unidirectional dense-wavelength-division-multiplexing fiber-optic links

Pinkert, T. J., Boll, O., Willmann, L., Jansen, G. S. M., Dijck, E. A., Groeneveld, B. G. H. M., Smets, R., Bosveld, F. C., Ubachs, W. M. G., Jungmann, K., Eikema, K. S. E. & Koelemeij, J. C. J., 2015, In : Applied Optics. 54, 4, p. 728-738

Research output: Contribution to JournalArticleAcademicpeer-review

Dense wavelength division multiplexing
wavelength division multiplexing
Fiber optics
fiber optics
soils
2014

MOLECULAR SPECTROSCOPY Forbidden vibrations

Koelemeij, J. C. J., 2014, In : Nature Physics. 10, 11, p. 800-801

Research output: Contribution to JournalArticleAcademicpeer-review

2013

Bounds on fifth forces from precision measurements on molecules

Salumbides, E. J., Koelemeij, J. C. J., Komasa, J., Pachucki, K., Eikema, K. S. E. & Ubachs, W. M. G., 2013, In : Physical Review D. 87, 11, 112008.

Research output: Contribution to JournalArticleAcademicpeer-review

frequency measurement
hydrogen
molecules

Delivering 10 Gb/s optical data with picosecond timing uncertainty over 75 km distance

Sotiropoulos, N., Okonkwo, C. M., Nuijts, R., de Waardt, H. & Koelemeij, J. C. J., 2013, In : Optics Express. 21, 26, p. 32643-32654

Research output: Contribution to JournalArticleAcademicpeer-review

time measurement
propagation
cross correlation
positioning
shot

Laser cooling of beryllium ions using a frequency-doubled 626 nm diode laser

Cozijn, F. M. J., Biesheuvel, J., Flores, A. S., Ubachs, W. M. G., Blume, G., Wicht, A., Paschke, K., Erbert, G. & Koelemeij, J. C. J., 2013, In : Optics Letters. 38, 13, p. 2370-2372

Research output: Contribution to JournalArticleAcademicpeer-review

laser cooling
beryllium
semiconductor lasers
cavities
isolators

Two-photon spectroscopy of trapped HD+ ions in the Lamb-Dicke regime

Tran, V. Q., Karr, J-P., Douillet, A., Koelemeij, J. C. J. & Hilico, L., 2013, In : Physical Review A. 88, 3, p. 033421 15 p.

Research output: Contribution to JournalArticleAcademicpeer-review

photons
dissociation
spectroscopy
lasers
molecular spectroscopy

Widely tunable laser frequency offset lock with 30 GHz range and 5 THz offset

Biesheuvel, J., Noom, D. W. E., Salumbides, E. J., Sheridan, K. T., Ubachs, W. M. G. & Koelemeij, J. C. J., 2013, In : Optics Express. 21, 12, p. 14008-14016

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access
File
tunable lasers
tuning
helium-neon lasers
Fabry-Perot interferometers
continuous wave lasers
2012

Het betere gereedschap voor de quantummechanische werkplaats

Koelemeij, J. C. J., 2012, In : Nederlands Tijdschrift voor Natuurkunde. 78, 12, p. 472

Research output: Contribution to JournalArticleAcademicpeer-review

Observation of the v '=8 <- v=0 vibrational overtone in cold trapped HD+

Koelemeij, J. C. J., Noom, D. W. E., de Jong, D., Haddad, M. A. & Ubachs, W. M. G., 2012, In : Applied Physics B. Lasers and Optics. 107, 4, p. 1075-1085

Research output: Contribution to JournalArticleAcademicpeer-review

Ions
Lasers
Laser radiation
2011

Direct frequency-comb spectroscopy of a dipole-forbidden clock transition in trapped 40Ca+ ions

Wolf, A. L., Morgenweg, J., Koelemeij, J. C. J., van den Berg, S. A., Ubachs, W. M. G. & Eikema, K. S. E., 2011, In : Optics Letters. 36, 1, p. 49-51 3 p.

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access
File
clocks
dipoles
spectroscopy
ions

Infrared dynamic polarizability of HD+ rovibrational states

Koelemeij, J. C. J., 2011, In : Physical Chemistry Chemical Physics - PCCP.

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access
File
quantum numbers

Super GPS via glasvezelnetwerken

Koelemeij, J. C. J., 2011, In : Fotonica Magazine.

Research output: Contribution to JournalArticleAcademic

2010

Frequency Comparison of Two High-Accuracy Al+ Optical Clocks

Chou, C. W., Hume, D. B., Koelemeij, J. C. J. & Wineland, D. J., 2010, In : Physical Review Letters. 104, 7, p. 070802

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access
File
clocks
2009

Determination of the ionization and dissociation energies of the hydrogen molecule

Liu, J. J., Salumbides, E. J., Hollenstein, U., Koelemeij, J. C. J., Eikema, K. S. E., Ubachs, W. M. G. & Merkt, F., 2009, In : Journal of Chemical Physics. 130, 17, p. 174306

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access
File
Ionization
Hydrogen
dissociation
ionization
Molecules
2007

Observation of the S01→P03 clock transition in Al+27

Rosenband, T., Schmidt, P. O., Hume, D. B., Itano, W. M., Fortier, T. M., Stalnaker, J. E., Kim, K., Diddams, S. A., Koelemeij, J. C. J., Bergquist, J. C. & Wineland, D. J., 31 May 2007, In : Physical Review Letters. 98, 22, 220801.

Research output: Contribution to JournalArticleAcademicpeer-review

clocks
beryllium
aluminum
ions
Bohr magneton

Optical Clocks in Space

Schiller, S., Görlitz, A., Nevsky, A., Koelemeij, J. C. J., Wicht, A., Gill, K. P., Klein, H. A., Margolis, H. S., Mileti, G., Sterr, U., Riehle, F., Peik, E., Tamm, C., Ertmer, W., Rasel, E., van der Klein, M., Salomon, C., Tino, G. M., Lemonde, P., Holzwarth, R. & 1 othersHänsch, T. W., Apr 2007, In : Nuclear Physics B. Proceedings Supplement. 166, p. 300-302 3 p.

Research output: Contribution to JournalArticleAcademicpeer-review

clocks
geodesy
navigation
gravitational fields

Vibrational spectroscopy of HD+ with 2-ppb accuracy

Koelemeij, J. C. J., Roth, B., Wicht, A., Ernsting, I. & Schiller, S., 26 Apr 2007, In : Physical Review Letters. 98, 17, 173002.

Research output: Contribution to JournalArticleAcademicpeer-review

molecular ions
spectroscopy
hydrogen ions
quantum electrodynamics
bears
2005

High-power frequency-stabilized laser for laser cooling of metastable helium at 389 nm

Koelemeij, J. C. J., Hogervorst, W. & Vassen, W., 2005, In : Review of Scientific Instruments. 76, 3, 033104.

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access
File
Laser cooling
laser cooling
Helium
helium
Lasers
2004

High densities and optical collisions in a two-colour magneto-optical trap for metastable helium

Koelemeij, J. C. J., Tychkov, A., Jeltes, T., Hogervorst, W. & Vassen, W., 2004, In : Journal of Physics B: Atomic, Molecular and Optical Physics. 37, 17, p. 3501-3520

Research output: Contribution to JournalArticleAcademicpeer-review

helium
traps
color
collisions
ion production rates

Two-color magneto-optical trap for metastable helium

Tychkov, A., Koelemeij, J. C. J., Jeltes, T., Hogervorst, W. & Vassen, W., 2004, In : Physical Review A. 69, 5, 055401.

Research output: Contribution to JournalArticleAcademicpeer-review

space density
helium
traps
color
laser cooling
2003

Magneto-optical trap for metastable helium at 389 nm

Koelemeij, J. C. J., Stas, R. J. W., Hogervorst, W. & Vassen, W., 2003, In : Physical Review A. 67, 5, 053406.

Research output: Contribution to JournalArticleAcademicpeer-review

helium
traps
laser cooling
photons
helium atoms

Search for outer-well states above the ionization potential in H-2

Koelemeij, J. C. J., de Lange, A. & Ubachs, W. M. G., 2003, In : Chemical Physics. 287, 3, p. 349-354

Research output: Contribution to JournalArticleAcademicpeer-review

Ionization potential
Potential energy
ionization potentials
Hydrogen
potential energy