Results 1 to 10 of about 13,399 (197)

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

Results in Physics, 2016
The Imaging X-ray Polarimetry Explorer (IXPE) expands observation space by simultaneously adding polarization to the array of X-ray source properties currently measured (energy, time, and location).
Martin C. Weisskopf, Brian Ramsey, Stephen L. O’Dell, Allyn Tennant, Ronald Elsner, Paolo Soffita, Ronaldo Bellazzini, Enrico Costa, Jeffery Kolodziejczak, Victoria Kaspi, Fabio Mulieri, Herman Marshall, Giorgio Matt, Roger Romani   +13 more
doaj   +6 more sources

Decoding THz-Driven Dynamic Fingerprints of Ferroelectric Nanotwin Networks. [PDF]

Adv Mater
ABSTRACT Ultrafast polarization dynamics in ferroelectrics are of considerable interest for high‐speed tunable dielectrics and electro‐optics. Extended domain wall networks formed in ferroelectric twin nanodomains can support collective dynamics in the terahertz regime but require techniques that track polarization and strain evolution driven by ...
Li X, Ross A, Stoica VA, Das S, Hazra S, Wang HH, Padma H, Hoffmann MC, Kramer P, Song S, Nelson S, Sato T, Zhu D, Ramesh R, Martin LW, Cao Y, Freeland JW, Lindenberg AM, Wen H, Chen LQ, Gopalan V.   +20 more
europepmc   +2 more sources

Tuning Circular Dichroism and Circularly Polarised Luminescence in Single Crystals of a Perylene Diimide Macrocycle. [PDF]

Angew Chem Int Ed Engl
The circular dichroism (CD) and circularly polarised (CPL) of a bis‐perylene diimide macrocycle are measured in single crystals. These chiroptical properties are tuned by the macrocycle's π–π stacking interactions in the solid‐state. Abstract Chiral materials that manipulate circularly polarised light have burgeoning applications across optoelectronics,
Hartmann D, Penty SE, Krimovs A, Pal R, Gianga TM, Siligardi G, Barendt TA.   +6 more
europepmc   +3 more sources

ixpeobssim: A simulation and analysis framework for the imaging X-ray polarimetry explorer

SoftwareX, 2022
ixpeobssim is a simulation and analysis framework specifically developed for the Imaging X-ray Polarimetry Explorer (IXPE). Given a source model and the response functions of the telescopes, it is designed to produce realistic simulated observations, in ...
Luca Baldini, Niccolò Bucciantini, Niccolò Di Lalla, Steven Ehlert, Alberto Manfreda, Michela Negro, Nicola Omodei, Melissa Pesce-Rollins, Carmelo Sgrò, Stefano Silvestri   +9 more
doaj   +3 more sources

Synthesis, Structure, and Thin Film Optical Properties of a Chiral Benzothiazole-Derived Squaraine. [PDF]

Chemphyschem
Solution‐processed thin films can be sensitive to the choice of solvent and thermal annealing, which we explore for a chiral benzothiazole squaraine. We observe peculiarly shaped excitonic circular dichroism in uniaxially anisotropic thin films, in which the presumed Davydov bands are spatially distributed exclusively into in‐plane (UDC) and out‐of ...
Schumacher MF, Schnakenburg G, Sariciftci NS, Lützen A, Schiek M.   +4 more
europepmc   +2 more sources

Giant Polar Displacements via Strain Relaxation in Itinerant Ferromagnet SrRuO₃ Freestanding Films. [PDF]

Adv Sci (Weinh)
The discovery of substantial Ru off‐centre displacements exceeding 30 pm in SrRuO3 freestanding films is reported, achieved by properly controlling the strain relaxation process to engineer an expanded lattice. The work shows that tailored strain relaxation strategies can be used to design magnetic polar metals with desired electronic states in ...
Zhou X, Cui Z, Deng Q, Wang Y, Dong S, Wang Z, Lu Q, Wang J, Huang Q, Fu Z, Xiang B, Lu Q, Lu Y.   +12 more
europepmc   +2 more sources

An Overview of X-Ray Polarimetry of Astronomical Sources

Galaxies, 2018
We review the history of astronomical X-ray polarimetry based on the author’s perspective, beginning with early sounding-rocket experiments by Robert Novick at Columbia University and his team, of which the author was a member.
Martin C. Weisskopf
doaj   +3 more sources

Instrumentation and Future Missions in the Upcoming Era of X-ray Polarimetry

Galaxies, 2018
The maturity of current detectors based on technologies that range from solid state to gases renewed the interest for X-ray polarimetry, raising the enthusiasm of a wide scientific community to improve the performance of polarimeters as well as to ...
Sergio Fabiani
doaj   +3 more sources

Investigating the Properties of the Relativistic Jet and Hot Corona in AGN with X-ray Polarimetry

Galaxies
X-ray polarimetry has been suggested as a prominent tool for investigating the geometrical and physical properties of the emissions from active galactic nuclei (AGN).
Dawoon E. Kim, Laura Di Gesu, Frédéric Marin, Alan P. Marscher, Giorgio Matt, Paolo Soffitta, Francesco Tombesi, Enrico Costa, Immacolata Donnarumma   +8 more
doaj   +3 more sources

X-ray polarimetry and its application to strong-field quantum electrodynamics

High Power Laser Science and Engineering, 2023
Polarimetry is a highly sensitive method to quantify changes of the polarization state of light when passing through matter and is therefore widely applied in material science.
Qiqi Yu, Dirui Xu, Baifei Shen, Thomas E. Cowan, Hans-Peter Schlenvoigt   +4 more
doaj   +1 more source