Translator Disclaimer
1 February 2008 Incomplete annular beam
Author Affiliations +
Abstract
The wavefront of circular dark-hollow-beams with wavelength λ produces a helix of pitch m λ, where m is an integer. But the central phase singularity of such beams can also be generated reducing the pitch by using a modulo operation. When such a beam interferes destructively with an unmodified annular beam of the same order, an incomplete annular beam is produced. The final beam, generated using a standard computer-generated holographic procedure, retains its shape up to 1.5 cm. A potential use of such beams for manipulation of microorganisms has been indicated through a dynamic holographic procedure using a spatial light modulator.
©(2008) Society of Photo-Optical Instrumentation Engineers (SPIE)
Rijuparna Chakraborty, S. Sendhil Raja, and Ajay Ghosh "Incomplete annular beam," Optical Engineering 47(2), 028002 (1 February 2008). https://doi.org/10.1117/1.2834283
Published: 1 February 2008
JOURNAL ARTICLE
6 PAGES


SHARE
Advertisement
Advertisement
RELATED CONTENT

High-speed single-pixel digital holography
Proceedings of SPIE (June 26 2017)
Deep learning in holography
Proceedings of SPIE (March 05 2021)
Machine learning assisted holography
Proceedings of SPIE (April 12 2021)
Beam shaping with diffractive optical elements
Proceedings of SPIE (August 13 1993)

Back to Top