Abstract

We have studied the polarization and ellipticity of high-order harmonics from nitrogen molecules using the time-dependent density functional theory. The results of our numerical calculations are in excellent agreement with the data of recent experiments. The theoretical analysis of our results reveals that at least three contributions, namely those from the HOMO, the HOMO-1, and the HOMO-2 orbitals, contribute to the observed high harmonic spectra. Furthermore, we confirm that a proper account of the distribution of the alignment in the molecular ensemble is necessary to obtain agreement with the experimental data.

© 2014 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
High harmonic spectra contributed by HOMO-1 orbital of aligned CO2 molecules

Jiawei Li, Peng Liu, Hua Yang, Liwei Song, Shitong Zhao, Hui Lu, Ruxin Li, and Zhizhan Xu
Opt. Express 21(6) 7599-7607 (2013)

Imprints of the molecular-orbital geometry on the high-harmonic ellipticity

Meiyan Qin, Xiaosong Zhu, Kunlong Liu, Qingbin Zhang, and Peixiang Lu
Opt. Express 20(18) 20181-20190 (2012)

Enhanced narrow-bandwidth emission during high-order harmonic generation from aligned molecules

Chaojin Zhang, Jinping Yao, Fadhil A. Umran, Jielei Ni, Bin Zeng, Guihua Li, and Di Lin
Opt. Express 21(3) 3259-3264 (2013)

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 (4)

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 (2)

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