We describe a technique to measure the position of dipolar scatterer based on self-homodyne detection scattered light. The method can theoretically reach Heisenberg limit, at which information gained about is constrained only by back action has applications in fields levitated optomechanics and trapped ions generally applicable determination confined light scatterers.

OBJECTIVES Telomere length (TL) is commonly measured using quantitative PCR (qPCR). Although, easier than the southern blot of terminal restriction fragments (TRF) TL measurement method, one drawback of qPCR is that it introduces greater measurement error and thus reduces the statistical power of analyses. To address a potential source of measurement error, we consider the effect of well positi...

Robotic systems that operate in environments without access to global references like GNSS normally estimate their position by odometry. The incremental nature of this measurement is subject to drift that accumulates to large errors in the position estimate. We minimize this drift by exploiting scene knowledge in form of vanishing directions. These provide a scene referenced orientation measure...