Frequency comb metrology at PHz frequencies: Precision in the extreme ultraviolet

Ch Gohle; D. Z. Kandula; T. J. Pinkert; J. Morgenweg; I. Barmes; W. Ubachs; K. S E Eikema

doi:10.1109/URSIGASS.2011.6050328

Frequency comb metrology at PHz frequencies: Precision in the extreme ultraviolet

Ch Gohle, D. Z. Kandula, T. J. Pinkert, J. Morgenweg, I. Barmes, W. Ubachs, K. S E Eikema^*

^*Corresponding author for this work

Research output: Chapter in Book / Report / Conference proceeding › Conference contribution › Academic › peer-review

Abstract

The capability of frequency-comb (FC) lasers to precisely measure optical frequencies is extended to the multiple-PHz domain. This frequency region, which covers the extreme ultraviolet (XUV, wavelengths shorter than 100 nm), was previously not accessible to these devices. Frequency comb generation is shown for 51-85 nm by amplification and coherent up-conversion of a pair of pulses originating from a near-infrared femtosecond FC laser. Moreover, Ramsey-like signals with up to 61% contrast are observed when the XUV comb is scanned over transitions in argon, neon and helium, resulting in an 8-fold improved determination of the ground state ionization energy of helium.

Original language	English
Title of host publication	2011 30th URSI General Assembly and Scientific Symposium, URSIGASS 2011
DOIs	https://doi.org/10.1109/URSIGASS.2011.6050328
Publication status	Published - 2011
Event	2011 30th URSI General Assembly and Scientific Symposium, URSIGASS 2011 - Istanbul, Turkey Duration: 13 Aug 2011 → 20 Aug 2011

Conference

Conference	2011 30th URSI General Assembly and Scientific Symposium, URSIGASS 2011
Country	Turkey
City	Istanbul
Period	13/08/11 → 20/08/11

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Gohle, C., Kandula, D. Z., Pinkert, T. J., Morgenweg, J., Barmes, I., Ubachs, W., & Eikema, K. S. E. (2011). Frequency comb metrology at PHz frequencies: Precision in the extreme ultraviolet. In 2011 30th URSI General Assembly and Scientific Symposium, URSIGASS 2011 [6050328] https://doi.org/10.1109/URSIGASS.2011.6050328

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title = "Frequency comb metrology at PHz frequencies: Precision in the extreme ultraviolet",

abstract = "The capability of frequency-comb (FC) lasers to precisely measure optical frequencies is extended to the multiple-PHz domain. This frequency region, which covers the extreme ultraviolet (XUV, wavelengths shorter than 100 nm), was previously not accessible to these devices. Frequency comb generation is shown for 51-85 nm by amplification and coherent up-conversion of a pair of pulses originating from a near-infrared femtosecond FC laser. Moreover, Ramsey-like signals with up to 61{\%} contrast are observed when the XUV comb is scanned over transitions in argon, neon and helium, resulting in an 8-fold improved determination of the ground state ionization energy of helium.",

author = "Ch Gohle and Kandula, {D. Z.} and Pinkert, {T. J.} and J. Morgenweg and I. Barmes and W. Ubachs and Eikema, {K. S E}",

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doi = "10.1109/URSIGASS.2011.6050328",

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Gohle, C, Kandula, DZ, Pinkert, TJ, Morgenweg, J, Barmes, I, Ubachs, W & Eikema, KSE 2011, Frequency comb metrology at PHz frequencies: Precision in the extreme ultraviolet. in 2011 30th URSI General Assembly and Scientific Symposium, URSIGASS 2011., 6050328, 2011 30th URSI General Assembly and Scientific Symposium, URSIGASS 2011, Istanbul, Turkey, 13/08/11. https://doi.org/10.1109/URSIGASS.2011.6050328

Frequency comb metrology at PHz frequencies : Precision in the extreme ultraviolet. / Gohle, Ch; Kandula, D. Z.; Pinkert, T. J.; Morgenweg, J.; Barmes, I.; Ubachs, W.; Eikema, K. S E.

2011 30th URSI General Assembly and Scientific Symposium, URSIGASS 2011. 2011. 6050328.

Research output: Chapter in Book / Report / Conference proceeding › Conference contribution › Academic › peer-review

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