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Visual Recovery Reflects Cortical MeCP2 Sensitivity in Rett Syndrome
ABSTRACT Objective Rett syndrome (RTT) is a devastating neurodevelopmental disorder with developmental regression affecting motor, sensory, and cognitive functions. Sensory disruptions contribute to the complex behavioral and cognitive difficulties and represent an important target for therapeutic interventions.
Alex Joseph Simon +12 more
wiley +1 more source
Implementation of Underwater Electric Field Communication Based on Direct Sequence Spread Spectrum (DSSS) and Binary Phase Shift Keying (BPSK) Modulation. [PDF]
Zhang Y, Zhao Z, Feng X, Zhao T, Hu Q.
europepmc +1 more source
[Magnetic induced phase shift detection system based on a novel sensor for cerebral hemorrhage]. [PDF]
Liu J, Yan L, Qin M, Zhang H, Chen M.
europepmc +1 more source
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Phase-shifting interferometry with uncalibrated phase shifts
Applied Optics, 2000A computationally efficient algorithm for phase-shifting interferometry with imprecise phase shifts is developed. It permits the use of an uncalibrated phase shifter and is also insensitive to spatial intensity variations. The measurement has both spatial and temporal aspects. Comparisons are made between pixels within the same interferogram, and these
X, Chen, M, Gramaglia, J A, Yeazell
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Phase-shift calibration algorithm for phase-shifting interferometry
Journal of the Optical Society of America A, 2000We propose a novel phase-shift calibration algorithm. With this technique we determine the unknown phase shift between two interferograms by examining the sums and differences of the intensities on each interferogram at the same spatial location, i.e., I1(x, y) +/- I2(x, y). These intensities are normalized so that they become sinusoidal in form.
X, Chen, M, Gramaglia, J A, Yeazell
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Blind phase shift estimation in phase-shifting interferometry
Journal of the Optical Society of America A, 2007A blind phase shift estimation algorithm that allows simultaneous calculation of phases and phase shifts from three or more interferograms is presented. In phase-shifting interferometry, the phase shift errors introduce specific correlations between the calculated background intensity distribution and the fringe component.
Hongwei, Guo, Yingjie, Yu, Mingyi, Chen
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Phase-shift extraction for generalized phase-shifting interferometry
Optics Letters, 2009A simple algorithm for blind extraction of phase shifts is proposed for generalized phase-shifting interferometry from only three interferograms. Based on the statistical property of the object wave, the algorithm calculates approximately the involved phase shifts as initial values. The extraction is further improved by an iterative method, considering
Gao, Peng +5 more
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Optics Letters, 2012
We propose an optical element: a phase-shifted Fresnel axicon for generation of multiple Bessel beams. By giving a binary phase modulation to the standard Fresnel axicon, the proposed element is generated. The phase profile of the binary phase modulation is engineered to generate two and three Bessel beams of equal intensities.
Vijayakumar, A., Bhattacharya, Shanti
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We propose an optical element: a phase-shifted Fresnel axicon for generation of multiple Bessel beams. By giving a binary phase modulation to the standard Fresnel axicon, the proposed element is generated. The phase profile of the binary phase modulation is engineered to generate two and three Bessel beams of equal intensities.
Vijayakumar, A., Bhattacharya, Shanti
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Stroboscopic phase-shifting interferometry
Optics Letters, 1987The implementation of a new type of phase-shifting, self-referencing interferometer that simultaneously achieves the phase shift and separation of heams with a stationary diffraction grating is described. The capabilities of stroboscopic interferometry are demonstrated with results from an experiment in which the rapidly varying surface deformations of
O Y, Kwon, D M, Shough, R A, Williams
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Phase-shift-amplified interferometry
Optics Letters, 2018We present a new technique for improving the sensitivity of an interferometer, phase-shift-amplified interferometry (PAI), which is based on two embedded interferometers. The internal interferometer, which is biased in anti-phase, amplifies the phase shift; the external interferometer converts this into an amplified intensity shift. PAI can improve the
Moshe Ben Ayun +3 more
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