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A new method of matrix template matching is presented in the context of pulsar timing analysis. Pulse arrival times are typically measured using only the observed total intensity light curve. The new technique exploits the additional timing…

Astrophysics · Physics 2017-08-02 W. van Straten

The state of polarization and the carrier phase drift dynamically during transmission in a random fashion in coherent optical fiber communications. The typical digital signal processing solution to mitigate these impairments consists of two…

Information Theory · Computer Science 2024-01-25 Cristian B. Czegledi , Erik Agrell , Magnus Karlsson , Pontus Johannisson

Polarization information of the light can provide rich cues for computer vision and scene understanding tasks, such as the type of material, pose, and shape of the objects. With the advent of new and cheap polarimetric sensors, this imaging…

Computer Vision and Pattern Recognition · Computer Science 2024-01-03 Joaquin Rodriguez , Lew-Fock-Chong Lew-Yan-Voon , Renato Martins , Olivier Morel

Polarization plays an important role in various time-domain astrophysics to understand the magnetic fields, geometry, and environments of spatially unresolved variable sources. In this paper we present the results of laboratory and on-sky…

Instrumentation and Methods for Astrophysics · Physics 2020-04-29 Manisha Shrestha , Iain A. Steele , Andrez S. Piascik , Helen Jermak , Robert J. Smith , Chris M. Copperwheat

Active polarimetric imagery is a powerful tool for accessing the information present in a scene. Indeed, the polarimetric images obtained can reveal polarizing properties of the objects that are not avalaible using conventional imaging…

Information Retrieval · Computer Science 2016-08-16 Muriel Roche , Philippe Réfrégier

We present an analysis of the main systematic effects that could impact the measurement of CMB polarization with the proposed CORE space mission. We employ timeline-to-map simulations to verify that the CORE instrumental set-up and scanning…

Cosmology and Nongalactic Astrophysics · Physics 2019-08-13 P. Natoli , M. Ashdown , R. Banerji , J. Borrill , A. Buzzelli , G. de Gasperis , J. Delabrouille , E. Hivon , D. Molinari , G. Patanchon , L. Polastri , M. Tomasi , F. R. Bouchet , S. Henrot-Versillé , D. T. Hoang , R. Keskitalo , K. Kiiveri , T. Kisner , V. Lindholm , D. McCarthy , F. Piacentini , O. Perdereau , G. Polenta , M. Tristram , A. Achucarro , P. Ade , R. Allison , C. Baccigalupi , M. Ballardini , A. J. Banday , J. Bartlett , N. Bartolo , S. Basak , J. Baselmans , D. Baumann , M. Bersanelli , A. Bonaldi , M. Bonato , F. Boulanger , T. Brinckmann , M. Bucher , C. Burigana , Z. -Y. Cai , M. Calvo , C. -S. Carvalho , G. Castellano , A. Challinor , J. Chluba , S. Clesse , I. Colantoni , A. Coppolecchia , M. Crook , G. D'Alessandro , P. de Bernardis , G. De Zotti , E. Di Valentino , J. -M. Diego , J. Errard , S. Feeney , R. Fernandez-Cobos , F. Finelli , F. Forastieri , S. Galli , R. Genova-Santos , M. Gerbino , J. Gonzalez-Nuevo , S. Grandis , J. Greenslade , A. Gruppuso , S. Hagstotz , S. Hanany , W. Handley , C. Hernandez-Monteagudo , C. Hervias-Caimapo , M. Hills , E. Keihänen , T. Kitching , M. Kunz , H. Kurki-Suonio , L. Lamagna , A. Lasenby , M. Lattanzi , J. Lesgourgues , A. Lewis , M. Liguori , M. López-Caniego , G. Luzzi , B. Maffei , N. Mandolesi , E. Martinez-Gonzalez , C. J. A. P. Martins , S. Masi , A. Melchiorri , J. -B. Melin , M. Migliaccio , A. Monfardini , M. Negrello , A. Notari , L. Pagano , A. Paiella , D. Paoletti , M. Piat , G. Pisano , A. Pollo , V. Poulin , M. Quartin , M. Remazeilles , M. Roman , G. Rossi , J. -A. Rubino-Martin , L. Salvati , G. Signorelli , A. Tartari , D. Tramonte , N. Trappe , T. Trombetti , C. Tucker , J. Valiviita , R. Van de Weijgaert , B. van Tent , V. Vennin , P. Vielva , N. Vittorio , C. Wallis , K. Young , M. Zannoni

Phase modulation has emerged as a technique to create and manipulate high-dimensional frequency-bin entanglement. A necessary step to extending this technique to depolarized channels, such as those in a quantum networking environment, is…

The High Frequency Instrument of Planck will map the entire sky in the millimeter and sub-millimeter domain from 100 to 857 GHz with unprecedented sensitivity to polarization ($\Delta P/T_{\tiny cmb} \sim 4\cdot 10^{-6}$) at 100, 143, 217…

The results of four recently introduced beamforming schemes for phased array systems are discussed, each of which is capable to provide high sensitivity and accurate polarimetric performance of array-based radio telescopes. Ideally, a radio…

Instrumentation and Methods for Astrophysics · Physics 2011-08-30 Marianna V. Ivashina , Stefan J. Wijnholds , Rob Maaskant , Karl F. Warnick

Multi-mode optical interferometers represent the most viable platforms for the successful implementation of several quantum information schemes that take advantage of optical processing. Examples range from quantum communication, sensing…

In recent years, handheld and portable terahertz instruments have been in rapid development for various applications ranging from non-destructive testing to biomedical imaging and sensing. For instance, we have deployed our Portable…

Optics · Physics 2024-03-22 Zachery B. Harris , Kuangyi Xu , M. Hassan Arbab

Classical definition of degree of polarization is expressed in quantum domain by replacing intensities through quantum mechanical average values of relevant number operators and is viewed as first generalization of Intensity. This…

Quantum Physics · Physics 2013-03-19 Ravi S. Singh , Hari Prakash

Mueller polarimetry is a powerful technique with broad applications in astronomy, remote sensing, advanced material analysis, and biomedical imaging. However, instrumental constraints frequently restrict the measurement to an incomplete…

This paper investigates universal polar coding schemes. In particular, a notion of ordering (called convolutional path) is introduced between probability distributions to determine when a polar compression (or communication) scheme designed…

Information Theory · Computer Science 2010-12-03 Emmanuel Abbe

The paper has two main goals. The first is to take a new approach to rearrangements on certain classes of measurable real-valued functions on $\mathbb{R}^n$. Rearrangements are maps that are monotonic (up to sets of measure zero) and…

Metric Geometry · Mathematics 2022-02-15 Gabriele Bianchi , Richard J. Gardner , Paolo Gronchi , Markus Kiderlen

The polarization state of light is a key parameter in many imaging systems. For example, it can image mechanical stress and other physical properties that are not seen with conventional imaging, and can also play a central role in quantum…

Recently, the polarimetricmethod for thermally-induced polarization changes driven power losses (TIPCL) mitigation in complex laser systems has been developed. However, the final optimization relied on the four-parameter numerical process.…

We develop an improved phase calibration method of a reflective spatial light modulator (SLM) using interferometry by employing novel phase masks. We generate the optimised phase masks by using Iterative Fourier Transform Algorithm (IFTA)…

Optics · Physics 2022-04-26 Amar Deo Chandra , Ayan Banerjee

Accurate measurement of polarization in spectral lines is important for the reliable inference of magnetic fields on the Sun. For ground based observations, polarimetric precision is severely limited by the presence of Earth's atmosphere.…

Instrumentation and Detectors · Physics 2012-11-05 K. Nagaraju , Alex Feller

Polarization is a fundamental property of light that carries distinct and valuable information. Consequently, its precise measurement is crucial for numerous applications, including biomedical imaging, remote sensing, and optical…

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