Results 21 to 30 of about 487 (135)

Optimal nonlinear Stokes–Mueller polarimetry for multi-photon processes

Optics Letters, 2022
In this Letter, we present an optimization model for nonlinear Stokes–Mueller polarimetry (SMP) to improve the precision in estimating the nonlinear Mueller matrix (MM) for two- and three-photon processes. Although nonlinear polarimeters can measure the polarization properties of multi-photon processes or materials, existing ...
Li, Xiaobo, Liu, Wei, Goudail, François, Chen, Shih-Chi   +3 more
openaire   +3 more sources

Structure‐Response Relationships in Rigid C2‐Symmetric Excitonic Systems: Principles, Modulation, and Functional Design Strategies

ChemPhysChem, Volume 27, Issue 2, January 2026.
Rigid C2‐symmetric chromophores reveal how transition dipole orientation, magnitude, and conformational locking govern exciton coupling and g‐factor amplification, providing a structural blueprint for the rational design of advanced chiroptical molecular and material architectures.
Iván Gómez‐Oya, Julia Portela‐Pino, Ani Ozcelik, José Lorenzo Alonso‐Gómez   +3 more
wiley   +1 more source

Arbitrary polarization control with a segmented APPLE‐II undulator

Journal of Synchrotron Radiation, Volume 33, Issue 1, Page 73-83, January 2026.
A four‐segmented APPLE‐II undulator was constructed, and its operation has started at NanoTerasu BL13U. The performance of arbitrary polarization control using phase shifters is demonstrated.A newly developed four‐segmented APPLE‐II undulator enables arbitrary polarization control in the soft to tender X‐ray region.
Kento Inaba, Yoshiyuki Ohtsubo, Akane Agui, Hiroaki Kimura, Keisuke Sakuraba, Koji Horiba, Miho Kitamura, Shuhei Obara, Takeshi Nakatani, Tomoyuki Takeuchi, Yuji Hosaka, Masamitu Takahasi   +11 more
wiley   +1 more source

Compound meta‐optics: there is plenty of room at the top

Nanophotonics, Volume 14, Issue 23, Page 3835-3849, 02 November 2025.
Abstract Metasurfaces have been widely exploited in imaging and sensing, holography, light–matter interaction, and optical communications in free space and on chip, thanks to their CMOS compatibility, versatility and compact form. However, as this technology matured from novelty to performance, stringent requirements on diffraction efficiency ...
Ahmed H. Dorrah
wiley   +1 more source

From Low Symmetry to High Dissymmetry: Chiral Plasmonic Films of Binary and Nanobipyramid Assemblies

Advanced Functional Materials, Volume 35, Issue 45, November 5, 2025.
This work develops highly dissymmetric chiral plasmonic thin films by helically assembling gold nano bipyramids within a liquid‐crystal template. Engineering of the chiroptical response is achieved by varying particle size and geometry, as well as preparing binary assemblies.
Martyna Wasiluk, Claire Goldmann, Maciej Bagiński, Mateusz Pawlak, PawełW. Majewski, Julia Abramowicz, Piotr Roszkowski, Lukas Rebholz, Carsten Rockstuhl, Cyrille Hamon, Wiktor Lewandowski   +10 more
wiley   +1 more source

Complex Structured Light Generation Using Printed Liquid Crystal Droplets

Advanced Optical Materials, Volume 13, Issue 33, November 25, 2025.
Inkjet‐printed liquid crystal droplets generate structured light beams with spatially varying polarization and phase. These include full Poincaré beam, vortex beam carrying orbital angular momentum, and beam with polarization singularities, offering a simple approach for compact structured light generation in optical manipulation, imaging, and ...
Xuke Qiu, Runchen Zhang, Yifei Ma, Zimo Zhao, Zipei Song, Alva C. J. Orr, Mengmeng Li, Waqas Kamal, Jinge Guo, Alfonso A. Castrejón‐pita, Steve J. Elston, Stephen M. Morris, Chao He   +12 more
wiley   +1 more source

Thermoplasmonic‐Controlled Optical Filters Based on the Combination of Chiral Liquid Crystals and Metasurfaces

Macromolecular Rapid Communications, Volume 46, Issue 21, November 6, 2025.
A broadband cholesteric liquid crystal (CLC) combined with a bottom‐up metasurface absorber enables the realisation of thermoplasmonic‐controlled optical filters. These filters combine a CLC reflector for visible light with a metasurface absorber operating in the near‐infrared (NIR) range.
Federica Zaccagnini, Francesca Petronella, Michael E. McConney, Jonathan Slagle, Kwang‐Un Jeong, Timothy J. Bunning, Luciano De Sio   +6 more
wiley   +1 more source

Pseudo‐Dichroism: Nanophotonic Induction of Chiroptical Activity in Symmetric Molecular Systems

Advanced Optical Materials, Volume 13, Issue 24, August 25, 2025.
By analyzing vibrational circular dichroism (VCD) spectra of chiral nanomaterials, we distinguish genuine molecular chirality (true dichroism) from measurement artifacts (pseudo dichroism) using a novel, robust framework. The spectral criteria we establish apply broadly to all chiroptical techniques in nanomaterial research, enhancing precision in ...
Victor Tabouillot, Jeremy Landry, Mario González‐Jiménez, Nikolaj Gadegaard, Christian Johannessen, Klaas Wynne, Ewan W. Blanch, Malcolm Kadodwala   +7 more
wiley   +1 more source

Reconstructing Three‐Dimensional Optical Anisotropy with Tomographic Müller‐Polarimetric Microscopy

Advanced Science, Volume 12, Issue 27, July 17, 2025.
Tomographic Müller polarimetric microscopy is a novel imaging technique that resolves 3D birefringent properties of bulky samples, unveiling hierarchical nanostructures at microscopic resolution. Based on incoherent visible‐light polarimetry, it achieves experimental simplicity by eliminating phase measurements.
Yang Chen, Arthur Baroni, Torne Tänzer, Leonard Nielsen, Marianne Liebi   +4 more
wiley   +1 more source

Stokes Spectropolarimetry Applied to Measure Circular Birefringence Dispersion of Aqueous Solutions of Sugars

Chirality, Volume 37, Issue 7, July 2025.
This work demonstrates the use of Stokes spectropolarimetry (SSP) to investigate optical rotatory dispersion (ORD), or circular birefringence (CB), of chiral sugar solutions. The results confirm the relationship between concentration and optical rotation, the dependence on wavelength, and the versatility of SSP to characterize optical anisotropies ...
Ruan Lucas Sousa Lima, Eric Santos da Silva, Paulo Trindade Araujo, Newton Martins Barbosa Neto   +3 more
wiley   +1 more source