Large-scale 3D structure and mechanical properties of rotating light beams

Aleksandr Bekshaev; Aleksandr Karamoch

doi:10.1117/12.679901

14 June 2006 Large-scale 3D structure and mechanical properties of rotating light beams

Proceedings Volume 6254, Seventh International Conference on Correlation Optics; 625406 (2006) https://doi.org/10.1117/12.679901
Event: Seventh International Conference on Correlation Optics, 2005, Chernivsti, Ukraine

Abstract

Two types of paraxial light beams which show a sort of rotation around the propagation axis are studied. In beams with "intrinsic" rotation (e.g., superpositions of Laguerre-Gaussian modes having the same waist and Gaussian envelope radius) the transverse structure rotates during the free beam propagation because of certain internal reasons. The transverse structure experiences the self-similar transformation, in which every point of the beam cross section moves as if it performs a centrifugal fly-off due to inertia. In case of "extrinsic" rotation, a beam is set in rotation due to action of some rotatory optical system. Such beams can be represented as superpositions of angular harmonics with different frequencies. This "forced" rotation causes the angular momentum of the rotating beam which is proportional but directed oppositely to the angular velocity ofthe rotation. This mechanical feature is associated with the complicated 3D helical structure ofthe forcedly rotating beams.

Citation Download Citation

Aleksandr Bekshaev and Aleksandr Karamoch "Large-scale 3D structure and mechanical properties of rotating light beams", Proc. SPIE 6254, Seventh International Conference on Correlation Optics, 625406 (14 June 2006); https://doi.org/10.1117/12.679901

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available