NASA Tech Briefs, November 2010 yield this behavior. Previous work on mean-square error characterization for ML estimators has predominantly focused on additive Gaussian noise. This work demonstrates that the discrete nature of the Poisson noise process leads to a distinctly different error behavior. This work was done by Baris I. Erkmen and Bruce E. Moision of Caltech for NASA’s Jet Propulsion...

We use coherence theory to explain why it is necessary modify the conventional setup of a Michelson interferometer obtain Haidinger rings with an extended source white light. The modification consists introducing glass slide into one two arms interferometer. This insertion circumvents drastic restriction imposed by low temporal light, which prevents observation interference setup. In order unde...

Abstract The sensitivity of light and matter-wave interferometers to rotations is based on the Sagnac effect increases with area enclosed by interferometer. In case light, latter can be enlarged forming multiple fibre loops, whereas equivalent for remains an experimental challenge. We present a concept multi-loop atom interferometer scalable formed pulses. Our method will offer sensitivities as...

In their latest work, Hillman et al. (1) observe optical path length changes of individual photoreceptor cells in response to light stimulation, noninvasively, in a living human subject. This is a remarkable technical feat, showing the reliable extraction of nanometer-scale changes across the photoreceptor mosaic, although involuntary motion of the target tissue is up to five orders of magnitud...

The ASEPS-O Testbed Interferometer is a long-baseline infrared interferometer optimized for high-accuracy narrow-angle astrometry. It is being constructed by JPL for NASA as a testbed for the future Keck Interferometer to demonstrate the technology for the astrometric detection of exoplanets from the ground. Recent theoretical and experimental work has shown that extremely high accuracy narrow-...

We calculate the response of an ideal Michelson interferometer incorporating both dual recycling and squeezed light to gravitational waves. The photon counting noise has contributions from the light which is sent in through the input ports as well as the vacuum modes at sideband frequencies generated by the gravitational waves. The minimum detectable gravity wave amplitude depends on the freque...

NASA Tech Briefs, November 2010 yield this behavior. Previous work on mean-square error characterization for ML estimators has predominantly focused on additive Gaussian noise. This work demonstrates that the discrete nature of the Poisson noise process leads to a distinctly different error behavior. This work was done by Baris I. Erkmen and Bruce E. Moision of Caltech for NASA’s Jet Propulsion...

NASA Tech Briefs, November 2010 yield this behavior. Previous work on mean-square error characterization for ML estimators has predominantly focused on additive Gaussian noise. This work demonstrates that the discrete nature of the Poisson noise process leads to a distinctly different error behavior. This work was done by Baris I. Erkmen and Bruce E. Moision of Caltech for NASA’s Jet Propulsion...

NASA Tech Briefs, November 2010 yield this behavior. Previous work on mean-square error characterization for ML estimators has predominantly focused on additive Gaussian noise. This work demonstrates that the discrete nature of the Poisson noise process leads to a distinctly different error behavior. This work was done by Baris I. Erkmen and Bruce E. Moision of Caltech for NASA’s Jet Propulsion...