Abstract

We introduce a new class of spatio-temporally coupled ultrashort laser beams, which are obtained by superimposing Laguerre–Gauss beams whose azimuthal mode index is correlated to their frequency. These beams are characterized by helical structures for their phase and intensity profiles, which both encode the orbital angular momentum carried by the light. They can easily be engineered in the optical range, and are naturally produced at shorter wavelengths when attosecond pulses are generated by intense femtosecond Laguerre–Gauss laser beams. These spatio-temporal “light springs” will allow for the transfer of the orbital angular momentum to matter by stimulated Raman scattering.

© 2015 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Spectral anomalies and Gouy rotation around the singularity of ultrashort vortex pulses

M. Liebmann, A. Treffer, M. Bock, T. Elsaesser, and R. Grunwald
Opt. Express 25(21) 26076-26088 (2017)

Bright and dark helices of light

Ole Steuernagel
Opt. Express 20(13) 14371-14379 (2012)

Light beams with fractional orbital angular momentum and their vortex structure

Jörg B. Götte, Kevin O’Holleran, Daryl Preece, Florian Flossmann, Sonja Franke-Arnold, Stephen M. Barnett, and Miles J. Padgett
Opt. Express 16(2) 993-1006 (2008)

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

Supplementary Material (1)

» Media 1: PDF (121 KB)     

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 (2)

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 (8)

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