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Journal articles on the topic 'Polarisation'

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1

Gusarov, Andrei, Perry Beaumont, and Paula Siren. "Performance Enhancement of the Polarimetric Fibre Optical Current Sensor at JET Using Polarisation Optimisation." Sensors 24, no. 2 (2024): 555. http://dx.doi.org/10.3390/s24020555.

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To achieve optimal operation of the polarimetry-based FOCS, the light polarisation state at the input of the sensing fibre part must be close to a linear one. In the case of a FOCS deployed on a tokamak, the Joint European Torus (JET) in the present work, the long fibre optics link between the laser source and the sensing fibre modifies the polarisation in an unpredictable way, making it unclear which source polarisation state is to be set. A method for performing the necessary polarisation adjustment in a systematic way is proposed based on the FOCS analysis. The method requires performing da
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2

Bogdanov, S. A., O. S. Sidelnikov, and A. A. Redyuk. "Application of complex fully connected neural networks to compensate for nonlinearity in fibre-optic communication lines with polarisation division multiplexing." Quantum Electronics 51, no. 12 (2021): 1076–80. http://dx.doi.org/10.1070/qel17656.

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Abstract A scheme is proposed to compensate for nonlinear distortions in extended fibre-optic communication lines with polarisation division multiplexing, based on fully connected neural networks with complex-valued arithmetic. The activation function of the developed scheme makes it possible to take into account the nonlinear interaction of signals from different polarisation components. This scheme is compared with a linear one and a neural network that processes signals of different polarisations independently, and the superiority of the proposed neural network architecture is demonstrated.
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3

O'Brien, D. M., I. N. Polonsky, and J. B. Kumer. "Sensitivity of remotely sensed trace gas concentrations to polarisation." Atmospheric Measurement Techniques 8, no. 11 (2015): 4917–30. http://dx.doi.org/10.5194/amt-8-4917-2015.

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Abstract. Current and proposed space missions estimate column-averaged concentrations of trace gases (CO2, CH4 and CO) from high resolution spectra of reflected sunlight in absorption bands of the gases. The radiance leaving the top of the atmosphere is partially polarised by both reflection at the surface and scattering within the atmosphere. Generally, the polarisation state is unknown and could degrade the accuracy of the concentration measurements. The sensitivity to polarisation is modelled for the proposed geoCARB instrument, which will include neither polarisers nor polarisation scrambl
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4

O'Brien, D. M., I. N. Polonsky, and J. B. Kumer. "Sensitivity of remotely-sensed trace gas concentrations to polarisation." Atmospheric Measurement Techniques Discussions 8, no. 8 (2015): 8779–816. http://dx.doi.org/10.5194/amtd-8-8779-2015.

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Abstract. Current and proposed space missions estimate column-averaged concentrations of trace gases (CO2, CH4 and CO) from high resolution spectra of reflected sunlight in absorption bands of the gases. The radiance leaving the top of the atmosphere is partially polarised by both reflection at the surface and scattering within the atmosphere. Generally the polarisation state is unknown, and could degrade the accuracy of the concentration measurements. The sensitivity to polarisation is modelled for the proposed geoCARB instrument, which will include neither polarisers nor polarisation scrambl
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5

Piltyay, Stepan, Andrew Bulashenko, Hanna Kushnir, and Oleksandr Bulashenko. "Information Resources Economy in Satellite Systems based on New Microwave Polarizers with Tunable Posts." Path of Science 6, no. 11 (2020): 5001–10. http://dx.doi.org/10.22178/pos.64-6.

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One of the fundamental problems of modern digital telecommunications is the economy of digital information and frequency resources, which are highly limited. The introduction of novel telecommunication systems and 5G networks requires searching for principal solutions for the economy and reusing the frequency spectrum. Therefore, modern wireless mobile, terrestrial, and satellite systems use various new technologies to increase communication channels' information capacity for the economy of limited frequency resources. One of the most effective ways to reuse the information system's operating
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6

Prabhu, A., A. Brandenburg, M. J. Käpylä, and A. Lagg. "Helicity proxies from linear polarisation of solar active regions." Astronomy & Astrophysics 641 (September 2020): A46. http://dx.doi.org/10.1051/0004-6361/202037614.

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Context. The α effect is believed to play a key role in the generation of the solar magnetic field. A fundamental test for its significance in the solar dynamo is to look for magnetic helicity of opposite signs both between the two hemispheres as well as between small and large scales. However, measuring magnetic helicity is compromised by the inability to fully infer the magnetic field vector from observations of solar spectra, caused by what is known as the π ambiguity of spectropolarimetric observations. Aims. We decompose linear polarisation into parity-even and parity-odd E and B polarisa
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7

Eriksson, P., B. Rydberg, and S. A. Buehler. "On cloud ice induced absorption and polarisation effects in microwave limb sounding." Atmospheric Measurement Techniques 4, no. 6 (2011): 1305–18. http://dx.doi.org/10.5194/amt-4-1305-2011.

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Abstract. Microwave limb sounding in the presence of ice clouds was studied by detailed simulations, where clouds and other atmospheric variables varied in three dimensions and the full polarisation state was considered. Scattering particles were assumed to be horizontally aligned oblate spheroids with a size distribution parameterized in terms of temperature and ice water content. A general finding was that particle absorption is significant for limb sounding, which is in contrast to the down-looking case, where it is usually insignificant. Another general finding was that single scattering c
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8

Ferré, Vincent. "Macronisme, polarisation sociale et polarisation politique." Commentaire Numéro169, no. 1 (2020): 215. http://dx.doi.org/10.3917/comm.169.0215.

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9

Hodgkinson, T. G., R. A. Harmon, and D. W. Smith. "Polarisation-insensitive heterodyne detection using polarisation scrambling." Electronics Letters 23, no. 10 (1987): 513–14. http://dx.doi.org/10.1049/el:19870371.

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10

Heismann, F., P. B. Hansen, S. K. Korotky, G. Raybon, J. J. Veselka, and M. S. Whalen. "Automatic polarisation demultiplexer polarisation-multiplexed transmission systems." Electronics Letters 29, no. 22 (1993): 1965. http://dx.doi.org/10.1049/el:19931308.

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11

Hrebeniuk, O. O. "MATHEMATICAL MODEL OF A SIGNAL WITH SPECIFIED POLARISATION PARAMETERS IN THE ORTHOGONAL POLARISATION BASIS." Проблеми створення, випробування, застосування та експлуатації складних інформаційних систем, no. 27 (I) (December 27, 2024): 114–22. https://doi.org/10.46972/2076-1546.2024.27.10.

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The experience of combat operations in the context of the large-scale invasion of Ukraine by the russian federation shows that the current level of development of electronic weapons is characterised by a wide variety of types and types of electronic means, the use of multifunctional means with widely variable signal parameters and operating modes. For example, modern (state-of-the-art) ground, air and sea radar stations use deliberate changes in the frequency, time and polarisation parameters of emitted signals in different modes of operation, depending on the tasks and conditions of a complex
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12

Arshad, Haadia, and Muhammad Idrees. "Trends in Polarisation in Pakistan." Pakistan Development Review 47, no. 2 (2008): 153–67. http://dx.doi.org/10.30541/v47i2pp.153-167.

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This study analyses the trends in polarisation in Pakistan, in its rural and urban segments and its provinces, at the micro level during the period 1992-93 to 2001-02. Estimations are made by using the Bossert-Schworm measure (2006). The study finds fluctuating trends. In general, polarisation declined in all regions of Pakistan during 1996-97 and 2001-02, while 1998-99 is the period of maximum polarisation. Incorporating the household size reduces the extent of polarisation, implying that ignoring the household size overestimates polarisation. The comparison of trends in polarisation and inco
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13

Zhang, Teng, Jian Yang, Lei Guo, et al. "A bionic point-source polarisation sensor applied to underwater orientation." Journal of Navigation 74, no. 5 (2021): 1057–72. http://dx.doi.org/10.1017/s0373463321000308.

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AbstractWith the characteristics of full autonomy and no accumulated errors, polarisation navigation shows tremendous prospects in underwater scenarios. In this paper, inspired by the polarisation vision of aquatic organisms, a novel point-source polarisation sensor with high spectral adaptability (400 nm–760 nm) is designed for underwater orientation. To enhance the environmental applicability of the underwater polarisation sensor, a novel sensor model based on the underwater light intensity attenuation coefficient and optical coupling coefficient is established. In addition, concerned with t
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14

Rathod, Nikita, Peter Slater, George Sergi, Gamini Seveviratne, and David Simpson. "A fresh look at depolarisation criteria for cathodic protection of steel reinforcement in concrete." MATEC Web of Conferences 289 (2019): 03011. http://dx.doi.org/10.1051/matecconf/201928903011.

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Criteria for the successful application of cathodic protection (CP) for steel reinforced concrete have been fixed for decades and form part of ISO EN12696. The most used criterion is the achievement of 100 mV depolarization over a period not exceeding 24 hours after discontinuation of the applied current. Although more empirical than theoretically based, the criterion has served the CP industry well. It does, however, exclude any systems that may not always achieve that level of depolarization but have been shown to offer adequate protection, and so there is a need to explore ways of assessing
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15

Marshall, Justin, and Thomas W. Cronin. "Polarisation vision." Current Biology 21, no. 3 (2011): R101—R105. http://dx.doi.org/10.1016/j.cub.2010.12.012.

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16

Gherardelli, M., D. Giuli, and M. Fossi. "Suboptimum adative polarisation cancellers for dual-polarisation radars." IEE Proceedings F Communications, Radar and Signal Processing 135, no. 1 (1988): 60. http://dx.doi.org/10.1049/ip-f-1.1988.0008.

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17

Roiková, Eva, and Štěpán Kunc. "Stokes CMOS polarimetry limits studied at non-classical polarisation states." EPJ Web of Conferences 266 (2022): 10016. http://dx.doi.org/10.1051/epjconf/202226610016.

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We present the study of the two polarisation state analysers. The first consists of a polarisation camera with a removable QWP, and the second consists of a non-polarisation camera with a rotating QWP and a stationary linear polariser. The theoretical analysis and experiment focus on studying the influence of polarimeter optical components accuracy and errors such as retardation errors, misalignments and extinction ratio on Stokes parameters precision. This research is a cornerstone to understanding polarisation state analysers limits. We examined laser beams with non-classical polarisation di
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18

Vetter, Reinhold. "Polnische Polarisierung." osteuropa 69, no. 12 (2019): 39–53. http://dx.doi.org/10.35998/oe-2019-0020.

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19

Tilstra, L. G., and P. Stammes. "Alternative polarisation retrieval for SCIAMACHY in the ultraviolet." Atmospheric Chemistry and Physics Discussions 5, no. 2 (2005): 1973–93. http://dx.doi.org/10.5194/acpd-5-1973-2005.

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Abstract. We introduce an alternative method for the retrieval of polarisation in the ultraviolet by the satellite spectrometer SCIAMACHY. Unlike the operational polarisation retrieval algorithm, this method does not use the Polarisation Measurement Devices (PMDs) onboard SCIAMACHY, but only requires the reflectance signal. This makes the algorithm more robust and less sensitive to calibration errors caused by either improper characterisation of the instrument's response functions (key data) or degradation of the optical components. The alternative polarisation retrieval is able to retrieve th
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20

Hoeft, Matthias, Kamlesh Rajpurohit, Denis Wittor, Gabriella di Gennaro, and Paola Domínguez-Fernández. "On the Polarisation of Radio Relics." Galaxies 10, no. 1 (2022): 10. http://dx.doi.org/10.3390/galaxies10010010.

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Radio relics are extended radio emission features which trace shock waves in the periphery of galaxy clusters originating from cluster mergers. Some radio relics show a highly polarised emission, which make relics an excellent probe for the magnetisation of the intra-cluster medium. The origin of the relic polarisation is still debated. It could be a result of tangentially stretching the magnetic field at the shock surface. This scenario would naturally explain the alignment of the polarisation (E-vectors) with the shock normal. We have implemented a toy model for the relic polarisation accord
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21

Tilstra, L. G., and P. Stammes. "Alternative polarisation retrieval for SCIAMACHY in the ultraviolet." Atmospheric Chemistry and Physics 5, no. 8 (2005): 2099–107. http://dx.doi.org/10.5194/acp-5-2099-2005.

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Abstract. We introduce an alternative method for the retrieval of polarisation in the ultraviolet by the satellite spectrometer SCIAMACHY. Unlike the operational polarisation retrieval algorithm, this method does not use the Polarisation Measurement Devices (PMDs) onboard SCIAMACHY, but only requires the reflectance signal. This makes the algorithm more robust and less sensitive to calibration errors caused by either improper characterisation of the instrument's response functions (key data) or degradation of the optical components. The alternative polarisation retrieval is able to retrieve th
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22

Scarrott, S. M., C. D. Rolph, and D. P. Semple. "Optical Polarisation Studies of Galaxies." Symposium - International Astronomical Union 140 (1990): 245–51. http://dx.doi.org/10.1017/s0074180900190138.

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High spatial resolution maps of the optical linear polarisation of a range of galaxies of different morphological types and inclinations are presented. Spiral, barred spiral and irregular galaxies with low inclinations show spiral patterns of polarisation orientation which may be interpreted to indicate that there are large-scale magnetic fields present in the discs of these galaxies. A survey of edge-on galaxies with conspicuous equatorial dust lanes shows remarkable differences in polarisation structure between early and late types. In the Sa galaxies the polarisation in the dust lane is siz
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23

Kang, Ji-hyun, Do-Young Byun, Kee-Tae Kim, et al. "Linear polarisation of Class I methanol masers in massive star formation regions." Proceedings of the International Astronomical Union 13, S336 (2017): 243–46. http://dx.doi.org/10.1017/s1743921317010195.

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AbstractWe present the results of the linear polarisation observations of methanol masers at 44 and 95 GHz towards 39 massive star forming regions (Kanget al.2016). These two lines are observed simultaneously with the 21-m Korean VLBI Network (KVN) telescope in single dish mode. About 60% of the observed showed fractional polarisation of a few percents at least at one of the two transition lines. We note that the linear polarisation of the 44 GHz methanol maser is first detected in this study including single dish and interferometer observations. We find the polarisation properties of these tw
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24

Preite, Massimo Valerio, Vito Sorianello, Gabriele De Angelis, Marco Romagnoli, and Philippe Velha. "Geometrical Representation of a Polarisation Management Component on a SOI Platform." Micromachines 10, no. 6 (2019): 364. http://dx.doi.org/10.3390/mi10060364.

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Grating couplers, widely used in Silicon Photonics (SiPho) for fibre-chip coupling are polarisation sensitive components, consequently any polarisation fluctuation from the fibre optical link results in spurious intensity swings. A polarisation management componentis analytically considered, coupled with a geometrical representation based on phasors and Poincaré sphere, generalising and simplifying the treatment and understanding of its functionalities. A specific implementation in SOI is shown both as polarisation compensator and polarisation controller, focusing on the operative principle. F
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25

Rolník, Ondřej, and Katarína Adamková. "The Mutual Influence of Labour Market Polarisation, Wage Polarisation and Political Polarisation in the European Union." DANUBE 15, no. 1 (2024): 1–23. http://dx.doi.org/10.2478/danb-2024-0001.

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Abstract The aim of the paper is to prove a hypothesis concerning the dependence of the political polarisation of the European Union on recent developments in labour market structure. The labour market is undergoing changes that stem from technological progress as well as outsourcing of low-skill activities, which are causing an increase in labour market and wage polarisation. The premise is that the depopulation of the middle class is increasing political polarisation. The hypothesis is tested on a sample of 27 European Union countries from 1990 to the present using OLS with fixed effects reg
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26

Adams, Johnathan A., Gentry White, and Robyn P. Araujo. "Mathematical measures of societal polarisation." PLOS ONE 17, no. 10 (2022): e0275283. http://dx.doi.org/10.1371/journal.pone.0275283.

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In opinion dynamics, as in general usage, polarisation is subjective. To understand polarisation, we need to develop more precise methods to measure the agreement in society. This paper presents four mathematical measures of polarisation derived from graph and network representations of societies and information-theoretic divergences or distance metrics. Two of the methods, min-max flow and spectral radius, rely on graph theory and define polarisation in terms of the structural characteristics of networks. The other two methods represent opinions as probability density functions and use the Ku
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27

Liu, Hailong, Na Ta, Zhuoxiao Xie, and Zhanghao Li. "The Pseudo Opinion Polarisation of Chinese Online Political Culture: Evidence from Debates on Social Media Surrounding Fang Fang and Wuhan Diary." China: An International Journal 22, no. 4 (2024): 47–72. https://doi.org/10.56159/chn.2024.a945293.

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Abstract: The growing division of opinions and the apparent polarisation in Chinese cyberspace can be attributed to the complexity of online debate and Chinese political culture. This article examines as a case study the online discussion surrounding Fang Fang, a controversial figure during the COVID-19 outbreak in China, to analyse the characteristics, trends and factors driving the intensifying issue-based online conflict. It tests polarisation effects using a large data set of comments and users that cite Fang Fang’s Weibo posts over a three-month period. Empirical analysis indicates that t
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28

Park, K. J., H. Kim, J. H. Lee, C. J. Youn, S. K. Shin, and Y. C. Chung. "Polarisation-mode dispersion monitoring technique based on polarisation scrambling." Electronics Letters 38, no. 2 (2002): 83. http://dx.doi.org/10.1049/el:20020046.

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29

Barnes, W. L. "2×2 optical fibre polarisation switch and polarisation controller." Electronics Letters 24, no. 23 (1988): 1427. http://dx.doi.org/10.1049/el:19880975.

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30

Tsushima, H., and S. Sasaki. "Novel polarisation-frequency conversion-type polarisation diversity optical receiver." Electronics Letters 25, no. 8 (1989): 539. http://dx.doi.org/10.1049/el:19890369.

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31

Caponio, N., F. Delpiano, P. Gambini, M. Puleo, V. Seano, and E. Vezzoni. "Polarisation insensitive coherent transmission by synchronous intrabit polarisation spreading." Electronics Letters 27, no. 4 (1991): 337. http://dx.doi.org/10.1049/el:19910213.

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32

Parekh, R. A., R. L. Mehta, and A. Vyas. "Rabi cropped area forecasting of parts of Banaskatha District,Gujarat using MRS RISAT-1 SAR data." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLI-B8 (October 14, 2016): 1413–16. http://dx.doi.org/10.5194/isprs-archives-xli-b8-1413-2016.

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Radar sensors can be used for large-scale vegetation mapping and monitoring using backscatter coefficients in different polarisations and wavelength bands. Due to cloud and haze interference, optical images are not always available at all phonological stages important for crop discrimination. Moreover, in cloud prone areas, exclusively SAR approach would provide operational solution. This paper presents the results of classifying the cropped and non cropped areas using multi-temporal SAR images. Dual polarised C- band RISAT MRS (Medium Resolution ScanSAR mode) data were acquired on 9<sup&gt
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33

Smith, BJK, NS Witte, and KC Hines. "Systematics of the Electroweak Plasma at Finite Temperature II." Australian Journal of Physics 48, no. 5 (1995): 775. http://dx.doi.org/10.1071/ph950775.

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This paper extends the treatment of the polarisation tensor for the electroweak plasma to encompass all the preliminaries needed for a thorough study of its characteristics as they affect the early Universe. The detailed development of the one-loop polarisation tensor calculated in a previous paper includes the construction of the basis tensors in terms of which the polarisation tensor is most conveniently expressed. The polarisation response functions are obtained next and there follows a detailed discussion of the real and imaginary parts of the polarisation tensor. These are the essential t
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34

Veledina, Alexandra, Andrei V. Berdyugin, Ilia A. Kosenkov, et al. "Evolving optical polarisation of the black hole X-ray binary MAXI J1820+070." Astronomy & Astrophysics 623 (March 2019): A75. http://dx.doi.org/10.1051/0004-6361/201834140.

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Aims. The optical emission of black hole transients increases by several magnitudes during the X-ray outbursts. Whether the extra light arises from the X-ray heated outer disc, from the inner hot accretion flow, or from the jet is currently debated. Optical polarisation measurements are able to distinguish the relative contributions of these components. Methods. We present the results of BVR polarisation measurements of the black hole X-ray binary MAXI J1820+070 during the period of March-April 2018. Results. We detect small, ∼0.7%, but statistically significant polarisation, part of which is
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35

Stack, P. D., and S. P. Ellingsen. "Polarisation of Class II Methanol Masers." Publications of the Astronomical Society of Australia 28, no. 4 (2011): 338–56. http://dx.doi.org/10.1071/as11029.

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AbstractWe have used the University of Tasmania Mt Pleasant 26-m radio telescope to investigate the polarisation characteristics of a sample of strong 6.7 GHz methanol masers, the first spectral line polarisation observations to be undertaken with this instrument. As part of this process we have developed a new technique for calibrating linear polarisation spectral line observations. This calibration method gives results consistent with more traditional techniques, but requires much less observing time on the telescope. We have made the first polarisation measurements of a number of 6.7 GHz me
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36

Tilstra, L. G., R. Lang, R. Munro, I. Aben, and P. Stammes. "Contiguous polarisation spectra of the Earth from 300 to 850 nm measured by GOME-2 onboard MetOp-A." Atmospheric Measurement Techniques 7, no. 7 (2014): 2047–59. http://dx.doi.org/10.5194/amt-7-2047-2014.

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Abstract. In this paper we present the first contiguous high-resolution spectra of the Earth's polarisation observed by a satellite instrument. The measurements of the Stokes fraction Q/I are performed by the spectrometer GOME-2 onboard the MetOp-A satellite. Polarisation measurements by GOME-2 are performed by onboard polarisation measurement devices (PMDs) and the high-resolution measurements discussed in this paper are taken in the special "PMD RAW" mode of operation. The spectral resolution of these PMD RAW polarisation measurements varies from 3 nm in the ultraviolet (UV) to 35 nm in the
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37

López Ariste, A., B. Tessore, E. S. Carlín та ін. "Asymmetric shocks in χ Cygni observed with linear spectropolarimetry". Astronomy & Astrophysics 632 (25 листопада 2019): A30. http://dx.doi.org/10.1051/0004-6361/201936189.

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Aims. We derive information about the dynamics of the stellar photosphere, including pulsation, from a coherent interpretation of the linear polarisation detected in the spectral lines of the Mira star χ Cyg. Methods. From spectropolarimetric observations of χ Cyg, we performed a careful analysis of the polarisation signals observed in atomic and molecular lines, both in absorption and emission, using radiative transfer in the context of polarisation produced through two mechanisms: intrinsic polarisation and continuum depolarisation. We also explain the observed line doubling phenomenon in te
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38

Otto, T., J. Lu, and M. Chandra. "Polarisation basis transformation of weather radar measurements in the power domain." Advances in Radio Science 7 (May 19, 2009): 279–84. http://dx.doi.org/10.5194/ars-7-279-2009.

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Abstract. Polarisation diversity in radar remote sensing proved to be very successful in a variety of applications. Hydrometeors as raindrops or ice crystals are anisotropic radar targets giving rise to the use of polarisation diversity in weather radars. One advanced polarimetric weather radar is DLR's POLDIRAD in Oberpfaffenhofen. The huge data archive of this radar consists mainly of power measurements at diverse polarisation bases. This study investigates the possibility to apply the polarisation basis transformation directly on power measurements. As a result, empirical transfer functions
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39

Akujor, Chidi E. "Peculiar Magnetic Field Structures in 4C49.22 (1150+497)." Symposium - International Astronomical Union 140 (1990): 453–54. http://dx.doi.org/10.1017/s0074180900190849.

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We present radio polarisation observations of the quasar 4C49.22. It shows no evidence of depolarisation on the counter–jet side, while exhibiting strong variation of fractional polarisation along the jet, as well as transverse offset of maximum fractional polarisation from each knot in the jet.
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40

Patient, Dean A., and Simon A. R. Horsley. "Reflectionless anisotropic multilayers for both polarisations at grazing incidence." EPJ Applied Metamaterials 9 (2022): 15. http://dx.doi.org/10.1051/epjam/2022014.

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We find a method for designing anisotropic multilayer profiles that are reflectionless at grazing incidence, for both electromagnetic polarisations. The Helmholtz equation for grazing incidence propagation through an anisotropic multilayer can be factorised into a pair of equations of the form [see formula in PDF]. Solutions of [see formula in PDF] then determine two of the three principal values of the permittivity. Imposing the additional constraint of uniaxial anisotropy, we find a pair of coupled equations for the profile of both permittivity components such that neither polarisation is re
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41

Tilstra, L. G., R. Lang, R. Munro, I. Aben, and P. Stammes. "Contiguous polarisation spectra of the Earth from 300–850 nm measured by GOME-2 onboard MetOp-A." Atmospheric Measurement Techniques Discussions 6, no. 6 (2013): 11309–43. http://dx.doi.org/10.5194/amtd-6-11309-2013.

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Abstract. In this paper we present the first contiguous high-resolution spectra of the Earth's polarisation observed by a satellite instrument. The measurements of the Stokes fraction Q/I are performed by the spectrometer GOME-2 onboard the MetOp-A satellite. Polarisation measurements by GOME-2 are performed by onboard polarisation measurement devices (PMDs) and the high-resolution measurements discussed in this paper are taken in the special "PMD RAW" mode of operation. The spectral resolution of these PMD RAW polarisation measurements varies from 3 nm in the ultraviolet (UV) to 35 nm in the
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42

Menant, Sébastien, Frédéric Guégan, Vincent Tognetti, et al. "Polarisation of Electron Density and Electronic Effects: Revisiting the Carbon–Halogen Bonds." Molecules 26, no. 20 (2021): 6218. http://dx.doi.org/10.3390/molecules26206218.

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Electronic effects (inductive and mesomeric) are of fundamental importance to understand the reactivity and selectivity of a molecule. In this article, polarisation temperature is used as a principal index to describe how electronic effects propagate in halogeno-alkanes and halogeno-alkenes. It is found that as chain length increases, polarisation temperature decreases. As expected, polarisation is much larger for alkenes than for alkanes. Finally, the polarisation mode of the carbon–fluorine bond is found to be quite different and might explain the unusual reactivity of fluoride compounds.
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43

Kirchschlager, Florian, and Gesa H. M. Bertrang. "Self-scattering of non-spherical dust grains." Astronomy & Astrophysics 638 (June 2020): A116. http://dx.doi.org/10.1051/0004-6361/202037943.

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Context. The understanding of (sub-)millimetre polarisation has made a leap forward since high-resolution imaging with the Atacama Large (sub-)Mm Array (ALMA) became available. Amongst other effects, self-scattering (i.e. the scattering of thermal dust emission on other grains) is thought to be the origin of millimetre polarisation. This opens the first window to a direct measurement of dust grain sizes in regions of optically thick continuum emission as it can be found in protoplanetary discs and star-forming regions. However, the newly derived values of grain sizes are usually around ~100 μm
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44

Zhevandrov, N. D. "Polarisation physiological optics." Uspekhi Fizicheskih Nauk 165, no. 10 (1995): 1193. http://dx.doi.org/10.3367/ufnr.0165.199510d.1193.

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45

Zhevandrov, N. D. "Polarisation physiological optics." Physics-Uspekhi 38, no. 10 (1995): 1147–66. http://dx.doi.org/10.1070/pu1995v038n10abeh000115.

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46

Thulstrup, Erik W., Josef Michl, and D. Thorburn Burns. "Elementary polarisation spectroscopy." Analytica Chimica Acta 243 (1991): 323. http://dx.doi.org/10.1016/s0003-2670(00)82580-5.

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47

Moati, F., and A. Desgrez. "Polarisation de fluorescence." Trait - d'Union 1, no. 1 (1986): 33–35. http://dx.doi.org/10.1016/s0980-9090(86)80057-x.

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48

Atkinson, Gary A. "Polarisation photometric stereo." Computer Vision and Image Understanding 160 (July 2017): 158–67. http://dx.doi.org/10.1016/j.cviu.2017.04.014.

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49

Jonscher, A. K. "Relaxation of polarisation." Applied Physics A Solids and Surfaces 55, no. 2 (1992): 135–38. http://dx.doi.org/10.1007/bf00334211.

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50

Jinabhai, Amit N. "CPD: Understanding polarisation." Optician 271, no. 6996 (2025): 17–24. https://doi.org/10.12968/opti.2025.271.6996.17.

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