Ahlawat, S. ; Dasgupta, R. ; Gupta, P. K. (2007) Optical trapping near a charged surface: three-dimensional optical binding of colloids Proceedings of SPIE, 6535 . 65350W-65350W. ISSN 0277-786X
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Official URL: http://spiedigitallibrary.org/proceedings/resource...
Related URL: http://dx.doi.org/10.1117/12.740964
Abstract
We report three-dimensional trapping of charge stabilized colloidal particles near a charged surface (glass boundary), using a low numerical aperture objective. The trapping arises due to balancing action between optical forces and electrostatic repulsions. The observation of 3-d colloidal clusters and a linear array of colloidal microspheres along the trap beam and the possible reasons thereof are also discussed.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to The International Society for Optical Engineering. |
| ID Code: | 83747 |
| Deposited On: | 22 Feb 2012 12:47 |
| Last Modified: | 22 Feb 2012 12:47 |
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