Particles replaced axially in an optical trap

Murat Muradoglu, Chun Yat Lau, Tuck Wah Ng

Research output: Contribution to journalArticleOtherpeer-review

1 Citation (Scopus)


Flow-based measures to automate optical trapping have significant limitations. A scheme is advanced here where a spherical bead is first located in a trap, and a second bead below the focus point is selectively drawn into the trap to replace the original particle. Experimentation conducted showed that it was possible to do so with little perturbation of other surrounding particles. Simulations done allowed for a clearer description of the exchange mechanism.
Original languageEnglish
Pages (from-to)697 - 700
Number of pages4
JournalOptics Letters
Issue number5
Publication statusPublished - 2015

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