Phase-transition-like properties of double-beam optical tweezers

Stilgoe, A. B., Heckenberg, N. R., Nieminen, T. A. and Rubinsztein-Dunlop, H. (2011) Phase-transition-like properties of double-beam optical tweezers. Physical Review Letters, 107 24: 248101.1-248101.4. doi:10.1103/PhysRevLett.107.248101

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Author Stilgoe, A. B.
Heckenberg, N. R.
Nieminen, T. A.
Rubinsztein-Dunlop, H.
Title Phase-transition-like properties of double-beam optical tweezers
Journal name Physical Review Letters   Check publisher's open access policy
ISSN 0031-9007
Publication date 2011-12-09
Sub-type Article (original research)
DOI 10.1103/PhysRevLett.107.248101
Open Access Status File (Publisher version)
Volume 107
Issue 24
Start page 248101.1
End page 248101.4
Total pages 4
Place of publication College Park, MD, United States
Publisher American Physical Society
Collection year 2012
Language eng
Abstract We report on double-beam optical tweezers that undergo previously unknown phase-transition-like behavior resulting in the formation of more optical traps than the number of beams used to create them. We classify the optical force fields which produce multiple traps for a double-beam system including the critical behavior. This effect is demonstrated experimentally in orthogonally polarized (noninterfering) dual-beam optical tweezers for a silica particle of 2.32  μm diameter. Phase transitions of multiple beam trapping systems have implications for hopping rates between traps and detection of forces between biomolecules using dual-beam optical tweezers. It is an example of a novel dynamic system with multiple states where force fields undergo a series of sign inversions as a function of parameters such as size and beam separation.
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Article # 248101

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mathematics and Physics
Official 2012 Collection
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Citation counts: TR Web of Science Citation Count  Cited 9 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 9 times in Scopus Article | Citations
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