Referenced Items are not available for this document.
Your organization might have access to this article on the publisher's site. To check, click on this link:http://dx.doi.org/+10.1063/1.109937
Axial trapping forces exerted on microspheres are predicted using a Gaussian beam electromagnetic field model and a ray‐optics model, and compared with experimental measurements. Ray‐optics predicts a maximum trapping efficiency Q= -0.14 for optically trapped polystyrene microspheres in water, compared to a measured value of -0.12 ± 0.014 for 10 μm diam microspheres. When the microspheres are composed of amorphous silica, the predicted ray‐optics Q decreases to -0.11, compared to a Q = -0.034 predicted by the electromagnetic field model, and a measured value of -0.012 ± 0.001 for 1 μm diam microspheres. These results indicate that the two models have applicability in two different size regimes, and thus, are complementary.
Published in:
Applied Physics Letters
(Volume:63
,
Issue:
6
)
Date of Publication: Aug 1993
- Page(s):
- 715 - 717
- ISSN :
- 0003-6951
- Digital Object Identifier :
- 10.1063/1.109937
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 18 June 2009
- Issue Date :
- Aug 1993
About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies
A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2013 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.
