Volume-holographic filters for rotational sensing of three-dimensional objects.
A highly precise rotational filter based on a volume-holographic optical element is proposed and demonstrated. We present a clear theoretical calculation of the rotation sensitivity of the volume-holographic filter used to sense the rotation of a spherical ground glass object. By introducing the longitudinal displacement of the scattering point across the sphere, the sensitivity of the filter is greatly improved to 350 times that of a general case for a planar ground glass.
Teng
Tun-Chien
TC
Department of Optics and Photonics, National Central University, Chung-Li 320, Taiwan.
Zhong
Wen-Jay
WJ
Ma
Shi-Hsin
SH
Sun
Ching-Cherng
CC
D000465:Algorithms; D003198:Computer Simulation; D005374:Filtration / Q000379:methods*; D006696:Holography / Q000379:methods*; D007089:Image Enhancement / Q000379:methods*; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D021621:Imaging, Three-Dimensional / Q000379:methods*; D008962:Models, Theoretical; D012399:Rotation