TY - GEN
T1 - A simple method to fulfill particle trapping by optical tweezers array
AU - Hu, Xiaoming
AU - Li, Jingfang
AU - Zhou, Yanhuang
AU - Li, Qin
PY - 2010
Y1 - 2010
N2 - We adopt double-plate sheering interferometers to perform an optical tweezers array system. In the optical tweezers array system, the reflecting mirror is replaced by an optical scanner to be a beam translator. The optical scanner is driven by an input signal to control the interference strips movement. However, if the interference strips move periodically, the trapped particles would move along with the strips with the same regulation. So, the particles could not be separated from the other particles. We use an external modulating device to be a shutter to control the laser beam. Then the trapped particles would continue moving because of inertia during the laser beam is blocked, and be trapped again after the shutter opens. If the moving speed of liquid is limited properly, the particles can be separated continuingly and collected. At the end of this article, we illustrate the result of conducting the novel method and characteristics of the system.
AB - We adopt double-plate sheering interferometers to perform an optical tweezers array system. In the optical tweezers array system, the reflecting mirror is replaced by an optical scanner to be a beam translator. The optical scanner is driven by an input signal to control the interference strips movement. However, if the interference strips move periodically, the trapped particles would move along with the strips with the same regulation. So, the particles could not be separated from the other particles. We use an external modulating device to be a shutter to control the laser beam. Then the trapped particles would continue moving because of inertia during the laser beam is blocked, and be trapped again after the shutter opens. If the moving speed of liquid is limited properly, the particles can be separated continuingly and collected. At the end of this article, we illustrate the result of conducting the novel method and characteristics of the system.
KW - Optical tweezers array
KW - double-plate sheering interferometers
KW - particle trapping
KW - separation
UR - http://www.scopus.com/inward/record.url?scp=78650486174&partnerID=8YFLogxK
U2 - 10.1117/12.870281
DO - 10.1117/12.870281
M3 - Conference contribution
AN - SCOPUS:78650486174
SN - 9780819483751
T3 - Progress in Biomedical Optics and Imaging - Proceedings of SPIE
BT - Optics in Health Care and Biomedical Optics IV
T2 - Optics in Health Care and Biomedical Optics IV
Y2 - 18 October 2010 through 20 October 2010
ER -