1Department of Physics, University of Science and Technology of China, Hefei 2300262Hefei National Laboratory for Physical Sciences at the Microscales, University of Science and Technology of China, Hefei 230026
Improvement of Transverse Trapping Efficiency of Optical Tweezers
1Department of Physics, University of Science and Technology of China, Hefei 2300262Hefei National Laboratory for Physical Sciences at the Microscales, University of Science and Technology of China, Hefei 230026
摘要Transverse trapping efficiency of optical tweezers is important in many force measurement applications. For improving the transverse trapping efficiency, we propose a simple scheme in which the Gaussian beam does not fully cover the aperture of the objective. Both experiment and theoretical simulation qualitatively demonstrate the scheme. It is expected that the results will be useful for the design of optical tweezers.
Abstract：Transverse trapping efficiency of optical tweezers is important in many force measurement applications. For improving the transverse trapping efficiency, we propose a simple scheme in which the Gaussian beam does not fully cover the aperture of the objective. Both experiment and theoretical simulation qualitatively demonstrate the scheme. It is expected that the results will be useful for the design of optical tweezers.
[1] Ashkin A, Dziedzic J M, Bjorkholm J E and Chu S 1986 Opt.Lett. 11 288 [2] Ashkin A 1992 Biophys. J. 61 569 [3] Ashkin A and Dziedzic J M 1987 Science 235 1517 [4] Ishijima A, Kojima H, Funatsu T, Tokunaga M, Higuchi H, Tanaka Hand Yanagida T 1998 Cell 92 161 [5] Wang M D 1999 Curr. Opin. Biotechnol. 10 81 [6] Xu C H, Guo H L, Qu E, Li Z L, Yuan M, Cheng B Y and Zhang D Z 2007 Chin. Phys. Lett. 24 2714 [7] Crocker J C and Grier D G 1994 Phys. Rev. Lett. 73 352 [8] Crocker J C 1997 J. Chem. Phys. 106 2837 [9] Grier D G 1997 Curr. Opin. Colloid Interface Sci. 2 264 [10] Zhou J H, Qu L J, Yao K, Zhong M C and Li Y M 2008 Chin.Phys. Lett. 25 329 [11] Owen R J, Crocker J C, Verma R and Yodh A G 2001 Phys.Rev. E 64 11401 [12] Sasaki K, Koshio M, Misawa H, Kitamura N and Masuhara H 1991 Opt. Lett. 16 1463 [13] Fallman E and Axner O 1997 Appl. Opt. 36 2107 [14] Yin L H, Li Y M, Lou L R, Zhang D and Chen H T 2003 Chin. J.Lasers 30 211 (in Chinese) [15] Cui G Q, Li Y M, Wang M Q and Lou L R 2001 Chin. J. Lasers 28 89 (in Chinese) [16] O' Neil A T and Padgett M J 2001 Opt. Commun. 193 45 [17] Xu S H, Li Y M and Lou L R 2006 Chin. Phys. 12 1009 [18] Fallman E and Axner O 2003 Appl. Opt. 42 3915 [19] Kim HI, Joo IJ, Song SH and Kim PS 2003 J. Korean Phys.Soc. 43 348 [20] Gong Z, Wang Z, Li Y M, Lou L R and Xu S H 2007 Opt. Commun. 276 37 [21] Xu S H, Li Y M and Lou L R 2005 Appl. Opt. 44 2667 [22] Barton J P, Alexander, and Schaub S A 1989 J. Appl. Phys. 66 4594 [23] Gu YQ, Gong Z, Li YM, Lou LR 2007 Appl. Laser 27 98(in Chinese)
2008, Vol. 25 
