Results 51 to 60 of about 6,376,337 (186)

Synthesis of Chiral Gold Nanostructures on Gold‐Coral‐Coated Transparent Conductive Oxide Substrates via [AuCl4]– and Cysteine Interactions for Enhanced Chiral Sensing

Small, EarlyView.
We developed hierarchical chiral Au nanostructures on Au coral structures on transparent conductive oxide substrates using only electrochemical methods. By controlling the interaction between [AuCl4]– and cysteine, we successfully tuned the morphology and circular dichroism of the resulting Au nanostructures.
Kenta Nakagawa, Junhe Wang, Tianji Zhang, Yuta Shiga, Olga Guselnikova, Takuya Nakanishi, Yusuke Yamauchi, Toru Asahi   +7 more
wiley   +1 more source

Complex Refractive Index Determination Via Microspectroscopy Through Magnifying Optics: Challenges and Opportunities

Small Methods, EarlyView.
Microspectroscopy combines a standard optical microscope with a spectrometer to measure reflectance and transmittance of samples down to the microscale. A numerical formalism that explicitly accounts for the high numerical aperture of magnifying optics retrieves complex refractive indices.
Julian Schwarz, Johannes Bauer, Mathias Rommel, Andreas Hutzler   +3 more
wiley   +1 more source

Mirror module design of x-ray telescopes of eXTP mission [PDF]

, 2019
The eXTP (enhanced X-Ray Timing and Polarimetry) mission is a Chinese science space mission developed in collaboration with many international countries.
PARESCHI, Giovanni, Qiang, P., Chen, Y., BASSO, Stefano, SPIGA, Daniele, Xu, Y., Sheng, L., Wang, J., Yang, Y., CIVITANI, Marta Maria, Zhao, B., SIRONI, GIORGIA, Yan, Y., TAGLIAFERRI, Gianpiero   +13 more
core   +1 more source

Form and structure factors with complex scattering vector

Journal of Applied Crystallography, EarlyView.
Under grazing incidence, form and structure factors must be evaluated for complex scattering vectors, which can be done by analytic continuation.In condensed‐matter scattering, especially under grazing incidence, complex scattering vectors account for absorption and evanescent waves.
Joachim Wuttke
wiley   +1 more source

High‐purity X‐ray polarimetry at high energies for Mössbauer spectroscopy

Journal of Synchrotron Radiation, EarlyView.
This work extends high‐purity X‐ray polarimetry into the 15–30 keV range, enabling polarization‐filtered synchrotron Mössbauer spectroscopy of higher‐energy nuclear resonances. A proof‐of‐principle experiment at 22.494 keV demonstrates a polarization purity of (1.2 ± 0.5) × 10−8, establishing the feasibility of the approach.High‐purity X‐ray ...
Berit Marx-Glowna, Ingo Uschmann, Robert Loetzsch, Willi Hippler, Judith Görs, Tony Wunderlich, Sakshath Sadashivaiah, Martin Tolkiehn, Gerhard G. Paulus, Ralf Röhlsberger   +9 more
wiley   +1 more source

The Imaging X-ray Polarimetry Explorer

, 2021
The Imaging X-ray Polarimetry Explorer is the next NASA Small Explorer developed in collaboration with the Italian Space Agency (Agenzia Spaziale Italiana, ASI). The mission, selected in 2017, is dedicated to imaging polarimetry in the 2-8 keV energy range and the payload comprises of three identical telescopes, each composed of a grazing-incidence ...
Muleri, Fabio, IXPE team
openaire   +2 more sources

Polarization‐Dependence of Nonlinear Optical Effects in Silicon: The Case of Ultrafast Processing

Advanced Physics Research, Volume 5, Issue 10, October 2026.
The dependence of the input polarization for the nonlinear optical propagation in silicon is investigated theoretically and experimentally. The perturbative regime is examined using pump‐probe shadowgraphy and nonlinear transmission, whereas the case of permanent laser‐induced modifications is addressed using a combination of Raman micro‐spectroscopy ...
Namig Alasgarzade, Alessandro Alberucci, Stree V. Arumugam, Markus Blothe, Maxime Chambonneau, Chandroth P. Jisha, Stefan Nolte   +6 more
wiley   +1 more source

X-Ray Spectro-polarimetry with Photoelectric Polarimeters [PDF]

The Astrophysical Journal, 2017
Abstract We derive a generalization of forward fitting for X-ray spectroscopy to include linear polarization of X-ray sources, appropriate for the anticipated next generation of space-based photoelectric polarimeters. We show that the inclusion of polarization sensitivity requires joint fitting to three observed spectra, one for each of ...
openaire   +2 more sources

A Changing-Look AGN to Be Probed by X-ray Polarimetry [PDF]

Galaxies, 2018
Active galactic nuclei (AGN) produce the highest intrinsic luminosities in the Universe from within a compact region. The central engine is thought to be powered by accretion onto a supermassive black hole. A fraction of this huge release of energy influences the evolution of the host galaxy, and in particular, star formation.
Agís-González, Beatriz, Hutsemékers, Damien, Miniutti, Giovanni   +2 more
openaire   +3 more sources

Light‐Imprinted Chirality in Nanomaterials: From Principles to Applications

Advanced Science, Volume 13, Issue 49, 3 September 2026.
Light‐induced chirality represents a transformative paradigm for fabricating chiral nanostructures. This review provides a comprehensive framework encompassing light‐based strategies for imprinting and tuning chirality in nanomaterials, which guides researchers in harnessing light to create next‐generation functional materials.
Xinru Jin, Emiliano Cortés, Alexander O. Govorov, Tao Ding   +3 more
wiley   +1 more source