Abstract

Due to favorable wavelength scaling of the electron ponderomotive energy, high-order harmonic generation in gases is known to benefit from using long-wavelength femtosecond laser sources to produce high-energy photons. In this paper, using an analytical quantum-mechanical approach, taking into account the laser-induced depletion of atomic levels and the magnetic-field effects, we analyze the relative roles of these factors in limiting the generation efficiency and in shaping the spectral profile of the harmonic radiation produced with mid-IR laser pulses in various gaseous targets. Based on these calculations, we estimate the maximum width of the high-harmonic spectrum that can be obtained using the high-power mid-IR laser sources. The feasibility of multi-keV photon generation in gases irradiated by state-of-the-art mid-IR drivers is demonstrated.

© 2015 Optical Society of America

Full Article  |  PDF Article

Corrections

19 November 2015: A correction was made to the title.


OSA Recommended Articles
Generation of high-intensity KeV single-attosecond pulse using multi-cycle spatial inhomogeneous mid-infrared field

Liqiang Feng, Hang Liu, Yi Li, and Wenliang Li
J. Opt. Soc. Am. B 35(5) A84-A92 (2018)

Enhanced phase-matching for generation of soft X-ray harmonics and attosecond pulses in atomic gases

Vladislav S. Yakovlev, Misha Ivanov, and Ferenc Krausz
Opt. Express 15(23) 15351-15364 (2007)

High-order harmonic generation by atoms with traveling- and standing-wave pumps of relativistic intensity

Vladimir D. Taranukhin and Nickolay Yu. Shubin
J. Opt. Soc. Am. B 19(5) 1132-1140 (2002)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (6)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (11)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription