Rotation Measurement and Control of Optically Trapped Particles. - Akihiro Yamamoto; Ichirou Yamaguchi (J. Robotics Mechatronics, 1995)

Optical voltage sensor using a pulse-controlled electrooptic quarter waveplate. - Changsheng Li; Xiang Cui; Ichirou Yamaguchi; Masayuki Yokota; Toshihiko Yoshino (IEEE Trans. Instrum. Meas., 2005)