Results 71 to 80 of about 13,399 (197)

On the Making of IXPE

Galaxies
Drs. Weisskopf and Ramsey were the original Principal and Deputy Principal Investigators of the Imaging X-ray Polarimetry Explorer (IXPE). They outline the path to the development of IXPE and discuss the technical and programmatic history that led up to ...
Martin C. Weisskopf, Brian Ramsey
doaj   +1 more source

Engineering Chiroptical Interactions through Integrating Plasmonic Arrays with Cholesteric Nanocellulose

Advanced Materials, Volume 38, Issue 16, 17 March 2026.
In this study, we demonstrate how the combination of plant‐based cellulose and gold nanoparticle lines produces robust, tunable chiral light control in composite films. The resulting plasmonic cellulose composite exhibits a strong plasmonic CD at the surface lattice resonance, along with an inversion of chiroptical response upon reversing the ...
Han Tao, Sunghwan Jo, Guang Chu, Xiaoyu Qi, Irene Estévez, Angel Lizana, Wenyang Xu, Shengwei Deng, Agustin Mihi, Eero Kontturi   +9 more
wiley   +1 more source

Reinforcement Learning Enabled Nanophotonic Devices

Laser &Photonics Reviews, Volume 20, Issue 6, 18 March 2026.
A reinforcement learning algorithm is used to design photonic devices. The method creates metagratings and grating couplers that efficiently control both the direction and polarization of light. Further, a reinforcement learning approach is used to design in‐plane integrated photonic devices. This approach paves the way for advanced photonic components
Zi Wang, Junyeob Song, Minsuk Lee, Wenqi Zhu, Amit Agrawal   +4 more
wiley   +1 more source

Design and tests of the hard X-ray polarimeter X-Calibur [PDF]

, 2011
X-ray polarimetry promises to give qualitatively new information about high-energy astrophysical sources, such as binary black hole systems, micro-quasars, active galactic nuclei, and gamma-ray bursts.
Baring, M. G., Barthelmy, S., Beilicke, M., Binns, W. R., Buckley, J., Cowsik, R., Dowkontt, P., Garson, A., Guo, Q., Haba, Y., Israel, M. H., Krawczynski, H., Kunieda, H., Lee, K., Matsumoto, H., Miyazawa, T., Okajima, T., Schnittman, J., Tamura, K., Tueller, J.   +19 more
core   +4 more sources

XL-Calibur Polarimetry of Cyg X-1 Further Constrains the Origin of Its Hard-state X-Ray Emission

The Astrophysical Journal
The balloon-borne hard X-ray polarimetry mission XL-Calibur observed the black hole X-ray binary (BHXRB) Cygnus X-1 (Cyg X-1) during its nearly 6 day long-duration balloon flight from Sweden to Canada in 2024 July.
Hisamitsu Awaki, Matthew G. Baring, Richard Bose, Jacob Casey, Sohee Chun, Adrika Dasgupta, Pavel Galchenko, Ephraim Gau, Kazuho Goya, Tomohiro Hakamata, Takayuki Hayashi, Scott Heatwole, Kun Hu, Daiki Ishi, Manabu Ishida, Fabian Kislat, Mózsi Kiss, Kassi Klepper, Henric Krawczynski, Haruki Kuramoto, Lindsey Lisalda, Yoshitomo Maeda, Hironori Matsumoto, Shravan Vengalil Menon, Aiko Miyamoto, Asca Miyamoto, Kaito Murakami, Takashi Okajima, Mark Pearce, Brian Rauch, Nicole Rodriguez Cavero, Kentaro Shirahama, Sean Spooner, Hiromitsu Takahashi, Keisuke Tamura, Yuusuke Uchida, Kasun Wimalasena, Masato Yokota, Marina Yoshimoto   +38 more
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Molecular Engineering for Enhanced Second‐Order Nonlinear Response in Spontaneously‐Oriented Evaporated Organic Films

Advanced Optical Materials, Volume 14, Issue 7, 16 February 2026.
Intramolecular bridge‐locking frustrates detrimental anti‐parallel packing in evaporated organic films. This design enhances net polar orientation, leading to a twofold off‐resonance increase in the second‐order nonlinear susceptibility (χ(2)) without electric‐field poling.
Pierre‐Luc Thériault, Heorhii V. Humeniuk, Zhechang He, Gabriel Juteau, Alexandre Malinge, Dmytro F. Perepichka, Stéphane Kéna‐Cohen   +6 more
wiley   +1 more source

X-Ray Polarization Study of Pulsar Wind Nebulae with eXTP: Simulation Results and Scientific Prospects

The Astrophysical Journal
X-ray polarization observations of pulsar wind nebulae (PWNe) provide crucial insights into magnetic field structures and particle acceleration mechanisms.
Kuan Liu, Fei Xie, Ming-Yu Ge, Wei Deng, En-Wei Liang   +4 more
doaj   +1 more source

The Imaging X-ray Polarimetry Explorer (IXPE): Technical Overview [PDF]

, 2018
The Imaging X-ray Polarimetry Explorer (IXPE) will expand the information space for study of cosmic sources, by adding linear polarization to the properties (time, energy, and position) observed in x-ray astronomy.
Allen, D. Zachery, Amici, Fabrizio, Antonelli, L. Angelo, Antoniak, Spencer, Attina, Primo, Bachetti, Matteo, Baldini, Luca, Barbanera, Mattia, Baumgartner, Wayne H., Bellazzini, Ronaldo, Bladt, Jeff, Bongiorno, Stephen D., Borotto, Fabio, Brez, Alessandro, Brooks, Thomas, Bussinger, Scott, Bygott, H. Kyle, Cavazzuti, Elisabetta, Ceccanti, Marco, Citraro, Saverio, Costa, Enrico, Deininger, William D., Dietz, Kurtis L., Donnarumma, Immacolata, Elsner, Ronald F., Erickson, Jennifer, Evangelista, Yuri, Fabiani, Sergio, Ferrazzoli, Riccardo, Foster, Michelle, Giusti, Manuela, Gunji, Shuichi, Guy, Larry, Johnson, Sandra, Kalinowski, William, Kaspi, Victoria M., Kelley, Anthony R., Kilaru, Kiranmayee, Kolodziejczak, Jeffery J., Lalla, Niccolò Di, Latronico, Luca, Lefevre, Carlo, Maldera, Simone, Manfreda, Alberto, Marengo, Marco, Marshall, Herman L., Masciarelli, James, Matt, Giorgio, McEachen, Mike, Mereu, Paolo, Minuti, Massimo, Mitchell, Mark A., Mitchell, Scott, Mitsuishi, Ikuyuki, Monte, Ettore Del, Morbidini, Alfredo, Mosti, Federico, Muleri, Fabio, Nasimi, Hikmat, Negri, Barbara, O'Dell, Stephen L., Orsini, Leonardo, Osborne, Darren, Pavelitz, Steven D., Pentz, Christina, Perri, Matteo, Persio, Giuseppe Di, Pesce-Rollins, Melissa, Peterson, Colin, Piazzolla, Raffaele, Pieraccini, Stefano, Pilia, Maura, Pinchera, Michele, Puccetti, Simonetta, Ramsey, Brian D., Ranganathan, Jaganathan, Read, Tim, Romani, Roger W., Rubini, Alda, Santoli, Francesco, Sarra, Paolo, Schindhelm, Sarah, Sciortino, Andrea, Seckar, Chris, Sgr, Carmelo, Smith, Brian T., Soffitta, Paolo, Spandre, Gloria, Speegle, Chet O., Tamagawa, Toru, Tardiola, Marcello, Tennant, Allyn F., Tobia, Antonino, Tortosa, Alessia, Trois, Alessio, Weddendorf, Bruce, Wedmore, Jeff, Weisskopf, Martin C., Zanetti, Davide   +98 more
core   +2 more sources

General History of X-Ray Polarimetry in Astrophysics

, 2022
19 pages, no figure, Invited Chapter for the "Handbook of X-Ray and Gamma-Ray Astrophysics" (Eds. C.Bambi and A.Santangelo, Springer Singapore, expected in 2022)
openaire   +2 more sources

IXPE View of the Crab Pulsar Following the 2025 July 17 and August 6 Glitches

The Astrophysical Journal
The Crab pulsar experienced two relatively small glitches separated by only 20 days in 2025 September and October. Imaging X-ray Polarimetry Explorer (IXPE) observed the source twice, with delay times since the glitch epoch ranging between 35 and 75 days,
Paolo Soffitta, Niccolò Bucciantini, Josephine Wong, Denis González-Caniulef, Matteo Bachetti, Riccardo Ferrazzoli, Fei Xie, Enrico Costa, Maura Pilia, Nicolò Cibrario, Jack T. Dinsmore, Niccolò Di Lalla, Philip Kaaret, Kuan Liu, Tsunefumi Mizuno, Michela Negro, C.-Y. Ng, Nicola Omodei, Simone Pagliarella, Stefano Silvestri, Yi-Jung Yang, Martin C. Weisskopf   +21 more
doaj   +1 more source