Title :
Determination of spring constant of laser trapped particle by external modulation
Author :
Sakakibara, T. ; Guanming Lai ; Zhihua Ding ; Shinohara, S.
Author_Institution :
Dept. of Electr. & Electron. Eng., Shizuoka Univ., Japan
fDate :
Aug. 30 1999-Sept. 3 1999
Abstract :
We have proposed a method to measure the spring constant of the particle-laser coupling system. The advantage of this method is mainly owing to increase the signal-to-noise ratio. By using the external excitation, we can measure the spring constant precisely with avoiding any other undesirable perturbations (by Brownian movement, molecules collision, etc).
Keywords :
laser cooling; radiation pressure; Brownian movement; external excitation; external modulation; laser trapped particle; molecules collision; particle-laser coupling system; signal-to-noise ratio; spring constant; Biomedical optical imaging; Charge carrier processes; Diode lasers; Electron traps; Force measurement; Frequency measurement; Laser excitation; Optical refraction; Optical variables control; Springs;
Conference_Titel :
Lasers and Electro-Optics, 1999. CLEO/Pacific Rim '99. The Pacific Rim Conference on
Conference_Location :
Seoul, South Korea
Print_ISBN :
0-7803-5661-6
DOI :
10.1109/CLEOPR.1999.811579
