English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The paraxial approximation to a laser field is no longer valid when the beam waist of the laser is of the order of its wavelength. In such a case, a laser beam propagating even in free space is not purely transverse but contains a significant longitudinal field. The present study reveals that the characteristics of the Thomson scattering by a relativistic electron (80MeV) of a tightly-focused, co-propagating laser field is sensitive to the electron's initial transverse position and phase with respect to the laser field: the electron radiates more strongly when it is initially located off the laser axis by about the beam waist than when on the laser axis. An enhancement of about 2000 times in the radiation power is noticed for the focused (beam waist w0 of 5µm) laser intensity of 5◊10 18 Wcm 2

A study of the Thomson scattering of radiation by a relativistic electron of a tightly-focused, co-propagating femtosecond laser beam