Direct electron-beam writing of continuous spiral phase plates in negative resist with high power efficiency for optical manipulation

W. C. Cheong, W. M. Lee, X. C. Yuan, L. S. Zhang, K. Dholakia, H. Wang

Research output: Contribution to journalArticle

56 Citations (Scopus)

Abstract

Laser beams propagating in Laguerre-Gaussian (LG) modes are of considerable interest due to their widespread applications in the areas of optical manipulation of microparticles, quantum entanglement of photons, nonlinear optics, optical vortex interactions, and atomic studies. However, the proliferation of LG beams has been hampered due to the absence of reliable and reproducible fabrication technologies in producing the required optical elements for their generation. In this letter, we describe a simple, reliable, and reproducible fabrication technique for a micron-sized spiral phase plate with high power efficiency (80%-90%) and good beam uniformity. This facilitates the widespread use of LG beams in various applications: as an example the fabricated elements can easily and readily be incorporated into an existing optical trapping system with minimum modification.

Original languageEnglish
Pages (from-to)5784-5786
Number of pages3
JournalApplied Physics Letters
Volume85
Issue number23
DOIs
Publication statusPublished - 2004 Dec 6

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power efficiency
manipulators
electron beams
fabrication
nonlinear optics
microparticles
trapping
laser beams
vortices
photons
interactions

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

Cite this

Cheong, W. C. ; Lee, W. M. ; Yuan, X. C. ; Zhang, L. S. ; Dholakia, K. ; Wang, H. / Direct electron-beam writing of continuous spiral phase plates in negative resist with high power efficiency for optical manipulation. In: Applied Physics Letters. 2004 ; Vol. 85, No. 23. pp. 5784-5786.
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Direct electron-beam writing of continuous spiral phase plates in negative resist with high power efficiency for optical manipulation. / Cheong, W. C.; Lee, W. M.; Yuan, X. C.; Zhang, L. S.; Dholakia, K.; Wang, H.

In: Applied Physics Letters, Vol. 85, No. 23, 06.12.2004, p. 5784-5786.

Research output: Contribution to journalArticle

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