Spatial and spectral coherent control with frequency combs

Autor: Stefan Witte, Kjeld S. E. Eikema, Itan Barmes

Publikováno v: Nature Photonics, 7, 38-42. Nature Publishing Group
Barmes, I, Witte, S & Eikema, K S E 2013, ' Spatial and spectral coherent control with frequency combs ', Nature Photonics, vol. 7, pp. 38-42 . https://doi.org/10.1038/NPHOTON.2012.299

Quantum coherent control (1-3) is a powerful tool for steering the outcome of quantum processes towards a desired final state, by accurate manipulation of quantum interference between multiple pathways. Although coherent control techniques have found

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bfd131b87ca63b33dfecbc64e85b0d40
https://doi.org/10.1038/NPHOTON.2012.299

Ramsey-comb spectroscopy with intense ultrashort laser pulses

Autor: J. Morgenweg, Kjeld S. E. Eikema, Itan Barmes

Publikováno v: Nature Physics, 10(1), 30-33. Nature Publishing Group
Morgenweg, J, Barmes, I & Eikema, K S E 2014, ' Ramsey-comb spectroscopy with intense ultrashort laser pulses ', Nature Physics, vol. 10, no. 1, pp. 30-33 . https://doi.org/10.1038/NPHYS2807

Optical frequency combs based on mode-locked lasers have revolutionised the field of metrology and precision spectroscopy by providing precisely calibrated optical frequencies and coherent pulse trains. Amplification of the pulsed output from these l

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::71a09d18276b5cae0d8612a923fd6918
http://arxiv.org/abs/1312.0406

Ramsey-comb spectroscopy with amplified frequency comb pulse pairs

Autor: Itan Barmes, J. Morgenweg, Kjeld S. E. Eikema

Publikováno v: 2013 Conference on Lasers and Electro-Optics Pacific Rim (CLEOPR).

We demonstrate kHz-level “Ramsey-comb” spectroscopy using two amplified frequency comb pulses. This concept enables significantly improved accuracies on two-photon transitions as shown with rubidium and cesium, and is extendible to XUV wavelength

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::116172d1c1daac75c1540bcefb43ab44
https://doi.org/10.1109/cleopr.2013.6600044

Spatial and Spectral Coherent Control over Direct Frequency Comb Excitation

Autor: Itan Barmes, Stefan Witte, Kjeld S. E. Eikema

Publikováno v: EPJ Web of Conferences, Vol 41, p 11001 (2013)
Barmes, I, Witte, S & Eikema, K S E 2013, Spatial and Spectral Coherent Control over Direct Frequency Comb Excitation . in Proceedings of the XVIIIth International Conference on Ultrafast Phenomena . EPJ Web of Conferences, XVIIIth International Conference on Ultrafast Phenomena, 9/07/12 . https://doi.org/10.1051/epjconf/20134111001
Proceedings of the XVIIIth International Conference on Ultrafast Phenomena

We demonstrate a method for spatial control over two-photon excitation, by using counter-propagating frequency comb pulse trains. This type of control is shown to enable significant improvement for direct frequency comb spectroscopy. © Owned by the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::333db2961495c7b94a3698c6b7a44ad0
https://hdl.handle.net/1871.1/b6badcc4-d189-456b-bb98-4698baddd360

Direct frequency metrology Up To PHz frequencies

Autor: Ch. Gohle, K.S.E. Eikema, D. Z. Kandula, Itan Barmes, J. Morgenweg, T. J. Pinkert

Publikováno v: 2012 European Frequency and Time Forum.

The capability of frequency-comb (FC) lasers to precisely measure optical frequencies has been extended to the to the extreme ultraviolet (XUV, wavelengths shorter than 100 nm), corresponding to frequencies of multiple PHz. We demonstrate “broad fr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::63c5e6d6a788795363afd7ea9f53aee7
https://doi.org/10.1109/eftf.2012.6502373