Ionization of atoms in the tunnelling regime with experimental evidence using Hg atoms

Ilkov, F A; Decker, J E; Chin, S. L.

doi:10.1088/0953-4075/25/19/011

Cited by 197 publications

(127 citation statements)

References 32 publications

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“…The general formulation of Keldysh [40] and Perelomov et al (PTT) [66] describes the ionization rate W (I) in the multiphoton regime, valid for I ≤ 10 13 W/cm 2 , as well as in the tunnel regime when I ≥ 10 14 W/cm 2 [1]. It also covers the intermediate regime which actually is the regime in which infrared fs filamentation takes place [35]. Fig.…”

Section: Plasma Generation By Optical Field Ionizationmentioning

confidence: 99%

Femtosecond Filamentation in Air

Couairon

Mysyrowicz

2006

Springer Series in Chemical Physics

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Section: Plasma Generation By Optical Field Ionizationmentioning

confidence: 99%

Femtosecond Filamentation in Air

Couairon

Mysyrowicz

2006

Springer Series in Chemical Physics

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“…We estimate the number of neutral atoms in the following way. The intensity-dependent ionization rates have been calculated by applying a tunnelling ionization formula [23]. By solving the propagation equation for the fundamental field through the partially ionized medium, we can estimate the amount of ionization in the medium at the peak of the harmonic pulse.…”

Section: Dispersion Due To Neutral Atomsmentioning

confidence: 99%

Influence of the medium length on high-order harmonic generation

Delfin¹,

Altucci

Fabbri

et al. 1999

J. Phys. B: At. Mol. Opt. Phys.

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Influence of the medium length on high-order harmonic generationDelfin, C; Altucci, C; De Filippo, F; de Lisio, C; Gaarde, Mette; Lhuillier, A; Roos, L; Wahlström, Claes-Göran Link to publication Citation for published version (APA): Delfin, C., Altucci, C., De Filippo, F., de Lisio, C., Gaarde, M., L'Huillier, A., ... Wahlström, C-G. (1999). Influence of the medium length on high-order harmonic generation. Journal of Physics B: Atomic, Molecular and Optical Physics, 32(22), 5397-5409. DOI: 10.1088/0953-4075/32/22/316 General rights Copyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights.• Users may download and print one copy of any publication from the public portal for the purpose of private study or research.• You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal Take down policy If you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim.Influence of the medium length on high-order harmonic generation Influence of the medium length on high-order harmonic generation Abstract. We study high-order harmonic generation using a 110 fs Ti:sapphire laser loosely focused into a variable-length gas cell filled with neon or argon at 5 mbar pressure. The harmonic intensity is recorded as a function of the medium length, varying between 2 and 21 mm. Several cases are examined, the 17th and the 29th harmonic in argon, and the 29th and 51st harmonic in neon, at the same intensity 4 × 10 14 W cm −2 . We find that the length which maximizes the harmonic yield varies from 10 mm to more than 20 mm. We discuss the different effects affecting the photon yield of the high-order harmonics.

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“…[25]; ÂÕÑÏÞ ÍÔÇÐÑÐÂ ì g 0Y01, F 0Y05 Â.Ç. [7]; ÂÕÑÏÞ ÓÕÖÕË ì g 0Y03, F 0Y01 Â.Ç. [44].´ËÒËÚÐÞÇ ÊÂÄËÔËÏÑÔÕË ÄÞØÑAEÂ ËÑÐÑÄ ÑÕ ËÐÕÇÐÔËÄÐÑÔÕË ÎÂÊÇÓÐÑÅÑ ËÊÎÖÚÇÐËâ (ÕÂÍ ÐÂÊÞÄÂÇÏÞÇ ÍÓËÄÞÇ ÄÑÊÃÖÉAEÇÐËâ) ÒÑÍÂÊÂÐÞ ÐÂ ÓËÔ.…”

Section: ±ñðAeçóñïñõñóðñç öôíñóçðëç ×ñõñàîçíõóñðñäunclassified