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Journals and Conferences
A novel spatial phase-shifting method using moiré phenomena is presented. According to our analysis of moiré patterns on the base of scalar diffraction theory there is stable phase shift between fringe patterns of different order filtering. This phase shift is the stric value of and and just depend on the distance between two gratings and the period… (More)
This paper establishes a more general continuous time swarm model with N-member. It takes the time delay and disturbances into account. We proved that the swarm members will converge and form a cohesive cluster around the center in a finite time in the presence of communication delays and disturbances. Moreover, we consider the multi-modal gaussian-type… (More)
A complex optical field in a Fourier plane is experimentally recovered by separating the real and imaginary parts of the Fourier spectrum in real time without an additional inverted object function U(-x, -y), and the signs of both parts are derived by differentiating the real spectrum.