Abstract

The response of conduction-band electrons to a local, pulse-like external excitation is investigated. The charge density wave packets that emerge as a consequence of the excitation leave the interaction region with a speed close to the initial state’s band velocity, but there are also oscillations with essentially the same frequency as that of the laser field. As a good estimation, the excitation can also be considered as a localized, time-dependent ponderomotive potential, leading to slowly varying current oscillations. The roles of all these effects are investigated for different electron energies, carrier frequencies, and sizes of the interaction area.

© 2018 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Transient optical properties of dielectrics and semiconductors excited by an ultrashort laser pulse

E. G. Gamaly and A. V. Rode
J. Opt. Soc. Am. B 31(11) C36-C43 (2014)

Femtosecond electron pulse gating using surface plasmons

S. E. Irvine and A. Y. Elezzabi
Opt. Express 14(9) 4115-4127 (2006)

Excitation and relaxation dynamics in dielectrics irradiated by an intense ultrashort laser pulse

Nils Brouwer and Bärbel Rethfeld
J. Opt. Soc. Am. B 31(11) C28-C35 (2014)

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 (8)

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