High-Precision Ramsey-Comb Spectroscopy Based on High-Harmonic Generation

Research output: Contribution to JournalArticleAcademicpeer-review

Abstract

High-harmonic generation (HHG) is widely used for up-conversion of amplified (near) infrared ultrafast laser pulses to short wavelengths. We demonstrate that Ramsey-comb spectroscopy, based on two such pulses derived from a frequency-comb laser, enables us to observe phase effects in this process with a few mrad precision. As a result, we could perform the most accurate spectroscopic measurement based on light from HHG, illustrated with a determination of the 5p6→5p58s[23/2]1 transition at 110 nm in Xe132. We improve its relative accuracy 104 times to a value of 2.3×10-10. This is 3.6 times better than shown before involving HHG, and promising to enable 1S-2S spectroscopy of He+ for fundamental tests.

Original languageEnglish
Article number143001
Pages (from-to)1-6
Number of pages6
JournalPhysical Review Letters
Volume123
Issue number14
DOIs
Publication statusPublished - 2 Oct 2019

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harmonic generations
spectroscopy
pulses
infrared lasers
wavelengths
lasers

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title = "High-Precision Ramsey-Comb Spectroscopy Based on High-Harmonic Generation",
abstract = "High-harmonic generation (HHG) is widely used for up-conversion of amplified (near) infrared ultrafast laser pulses to short wavelengths. We demonstrate that Ramsey-comb spectroscopy, based on two such pulses derived from a frequency-comb laser, enables us to observe phase effects in this process with a few mrad precision. As a result, we could perform the most accurate spectroscopic measurement based on light from HHG, illustrated with a determination of the 5p6→5p58s[23/2]1 transition at 110 nm in Xe132. We improve its relative accuracy 104 times to a value of 2.3×10-10. This is 3.6 times better than shown before involving HHG, and promising to enable 1S-2S spectroscopy of He+ for fundamental tests.",
author = "Dreissen, {L. S.} and C. Roth and Gr{\"u}ndeman, {E. L.} and Krauth, {J. J.} and M. Favier and Eikema, {K. S.E.}",
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High-Precision Ramsey-Comb Spectroscopy Based on High-Harmonic Generation. / Dreissen, L. S.; Roth, C.; Gründeman, E. L.; Krauth, J. J.; Favier, M.; Eikema, K. S.E.

In: Physical Review Letters, Vol. 123, No. 14, 143001, 02.10.2019, p. 1-6.

Research output: Contribution to JournalArticleAcademicpeer-review

TY - JOUR

T1 - High-Precision Ramsey-Comb Spectroscopy Based on High-Harmonic Generation

AU - Dreissen, L. S.

AU - Roth, C.

AU - Gründeman, E. L.

AU - Krauth, J. J.

AU - Favier, M.

AU - Eikema, K. S.E.

PY - 2019/10/2

Y1 - 2019/10/2

N2 - High-harmonic generation (HHG) is widely used for up-conversion of amplified (near) infrared ultrafast laser pulses to short wavelengths. We demonstrate that Ramsey-comb spectroscopy, based on two such pulses derived from a frequency-comb laser, enables us to observe phase effects in this process with a few mrad precision. As a result, we could perform the most accurate spectroscopic measurement based on light from HHG, illustrated with a determination of the 5p6→5p58s[23/2]1 transition at 110 nm in Xe132. We improve its relative accuracy 104 times to a value of 2.3×10-10. This is 3.6 times better than shown before involving HHG, and promising to enable 1S-2S spectroscopy of He+ for fundamental tests.

AB - High-harmonic generation (HHG) is widely used for up-conversion of amplified (near) infrared ultrafast laser pulses to short wavelengths. We demonstrate that Ramsey-comb spectroscopy, based on two such pulses derived from a frequency-comb laser, enables us to observe phase effects in this process with a few mrad precision. As a result, we could perform the most accurate spectroscopic measurement based on light from HHG, illustrated with a determination of the 5p6→5p58s[23/2]1 transition at 110 nm in Xe132. We improve its relative accuracy 104 times to a value of 2.3×10-10. This is 3.6 times better than shown before involving HHG, and promising to enable 1S-2S spectroscopy of He+ for fundamental tests.

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