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Dynamic optical manipulation using intensity patterns directly projected by a reflective spatial light modulator

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4 Author(s)
Tao, S.H. ; Photonics Research Centre, School of Electrical & Electronic Engineering, Nanyang Technological University, Nanyang Avenue, Singapore 639798 ; Yuan, X.-C. ; Niu, H.B. ; Peng, X.

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We propose a simple method to manipulate microparticles dynamically with intensity-modulated patterns projected by a spatial light modulator (SLM), on which the patterns are controlled by a computer directly. The patterns are intensity–intensity modulated by the SLM without involving any computation or algorithm. With the dynamic patterns we can manipulate particles interactively and visibly by drawing or mouse-dragging pictures or even playing a video file on the computer screen. Experimental observations verified the feasibility of the proposed technique as a simple and direct solution for interactive optical manipulation.

Published in:

Review of Scientific Instruments  (Volume:76 ,  Issue: 5 )