Optimization of parameters for dual fiber optical tweezers

Zhihai Liu; Chengkai Guo; Jun Yang; Libo Yuan

doi:10.1117/12.710729

27 October 2006 Optimization of parameters for dual fiber optical tweezers

Zhihai Liu, Chengkai Guo, Jun Yang, Libo Yuan

Proceedings Volume 6047, Fourth International Conference on Photonics and Imaging in Biology and Medicine; 60473L (2006) https://doi.org/10.1117/12.710729
Event: Fourth International Conference on Photonics and Imaging in Biology and Medicine, 2005, Tianjin, China

Abstract

The optimization of parameters for dual fiber optical tweezers is presented in this paper. Mode transmission properties are analyzed theoretically and characteristics of the optical field in tapered fiber are numerically simulated using FDTD method. The optimization of fiber's parameters such as the taper angle, radius of the fiber tip-lens and cladding radius at the tip of the tapered fiber is discussed in detail for the dual fiber optical tweezers. It is indicated that, for a common use, the taper angle should be as small as possible and the micro lens should be fabricated at the tip of the taper where the cladding is polished close to the fiber core. Experiments were done to investigate structural parameters including the arranged angle and the horizontal distance between the two fiber ends. Results indicate that the transverse trapping force is enhanced as the arranged angle reducing and there is an optimal horizontal distance between two fiber ends.

Citation Download Citation

Zhihai Liu, Chengkai Guo, Jun Yang, and Libo Yuan "Optimization of parameters for dual fiber optical tweezers", Proc. SPIE 6047, Fourth International Conference on Photonics and Imaging in Biology and Medicine, 60473L (27 October 2006); https://doi.org/10.1117/12.710729

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available