Publications


Title : Mode Switching of an Optical Motor

Language: English
Type: Article
Authors: Takahiro Harada and Kenichi Yoshikawa
Journal: Applied Physics Letters
ISSN: 0003-6951
Volume: 81
Number: 25
Month: 12
Year: 2002
Actual year: 2002
Pages: 4850-4852
doi:   10.1063/1.1527235
Abstract: A dielectric object irradiated with a strongly focused laser beam is affected by the trapping force as well as the scattering force. When the object is chirally shaped, it can be rotated in a certain direction. Here, we show that the rotational direction is controlled as desired only by changing the position of the focal spot on the same chiral object. We show the experimental evidence of the mode switching by using a helical chromosome under steady illumination of a Nd3+:YAG laser beam. (C) 2002 American Institute of Physics.

"Mode Switching of an Optical Motor"

Takahiro Harada and Kenichi Yoshikawa, Applied Physics Letters, 81, 4850-4852 (2002)