Results 81 to 90 of about 3,180 (187)

Evaluating maturity of organic matter in hydrated C1 and CM‐like clasts and a dehydrated clast within a polymict eucrite and a howardite

Meteoritics &Planetary Science, Volume 61, Issue 8, Page 1965-1993, August 2026.
Abstract Volatile‐rich xenolithic clasts in different types of brecciated meteorites represent unique pristine solar system material. This study investigates the maturity and thermal history of organic matter using Raman spectroscopy and aqueous alteration effects using infrared spectroscopy in the matrix of 15 volatile‐rich clasts (C1 and CM‐like ...
Swarna Prava Das, Alessandro Maturilli, Aurélie Van den Neucker, Markus Patzek, Dipak Kumar Panda, Gopal K. Pradhan, Guneshwar Thangjam, Surya Snata Rout   +7 more
wiley   +1 more source

Fano resonance in concentric ring apertures

Optics Express, 2013
We demonstrate a polarization-independent mid-infrared Fano resonance with extraordinary transmission when light passes through two concentric metallic ring apertures. A high-Q dark mode is indirectly excitated by coupling with a low-Q bright mode. A coupled optical resonator model is used to analyze the coupling process between the bright and dark ...
Jie, Shu, Weilu, Gao, Qianfan, Xu
openaire   +2 more sources

Raman analysis of organic refractory materials after energetic processing: Evidence for amorphous carbon on TNOs and comets

Meteoritics &Planetary Science, Volume 61, Issue 8, Page 1994-2015, August 2026.
Abstract Amorphous carbon (αC) is found in various extraterrestrial particles, including those thought to originate from the outer Solar System. αC can form through two main processes involving C‐rich materials: exposure to energetic charged particles and thermal processing.
M. Germanà, A. Vyjidak, G. A. Baratta, B. M. Giuliano, R. G. Urso, C. Scirè, D. Fulvio, T. Grassi, P. Jusko, P. Caselli, M. E. Palumbo   +10 more
wiley   +1 more source

Experimental realization of tunable Fano resonances in two coupled silicon micromechanical resonators

Physical Review Research
Fano resonances originate from the interaction of a discrete state with a continuum of propagation modes. They have been observed in various quantum and classical systems.
Yu-Jue Xie, Man-Na Zhang, Rui Wang, Li-Feng Wang, Qing-An Huang   +4 more
doaj   +1 more source

Mie scattering as a cascade of Fano resonances

Optics Express, 2013
We reveal that the resonant Mie scattering by high-index dielectric nanoparticles can be presented through cascades of Fano resonances. We employ the exact solution of Maxwell's equations and demonstrate that the Lorenz-Mie coefficients of the Mie problem can be expressed generically as infinite series of Fano functions as they describe interference ...
Rybin, Mikhail V., Samusev, Kirill B., Sinev, Ivan S., Semouchkin, George, Semouchkina, Elena, Limonov, Mikhail F., Kivshar, Yuri   +6 more
openaire   +3 more sources

Increasing of Q Factor of Quasi‐Bound States in the Continuum With Increased Asymmetry Parameter in a Silicon Metasurface Array

Nanophotonics, Volume 15, Issue 14, 27 July 2026.
Quasi‐bound states in the continuum (qBICs) can support resonances with high quality (Q) factor. Traditionally, maintaining a high Q factor requires a small α, which brings significant challenges for nanofabrication. In contrast, our study finds an increase in the Q factor with increasing of α in a metasurface array composed of Si blocks with circular ...
Yi Tian, Qin Fu, Shuai Feng, Qingguo Du, Zhengying Li, Fei Xu   +5 more
wiley   +1 more source

Putting piezoelectric sensors into Fano resonances

Microsystems & Nanoengineering
Abstract Piezoelectric resonance sensors are essential to many diverse applications associated with chemical and biological sensing. In general, they rely on continuously detecting the resonant frequency shift of piezoelectric resonators due to analytes accreting on their surfaces in vacuum, gas or fluid.
Mengting Wang, Jianqiu Huang, Qing-An Huang   +2 more
openaire   +3 more sources

Robust Bound States in the Continuum in Mirror‐Symmetric Terahertz Metasurfaces

Nanophotonics, Volume 15, Issue 14, 27 July 2026.
An ideal BIC, supported by local inversion symmetry in a mirror‐symmetric metasurface, transforms into a QBIC by introducing an asymmetry parameter α. This transition yields a finite Q‐factor following Q ∝ α−1.95, whereas the singular polarization state splits into two distinct circularly polarized points. This framework ensures robust BIC formation at
Die Zou, Zhen Zhou, Xia Cao, Rui Zhu, Keyu Tan, Zhiyong Wang, Xiaohua Xing, Jianquan Yao, Jianing Chen, Liang Wu   +9 more
wiley   +1 more source

Fano Resonances in All-Dielectric Oligomers

Nano Letters, 2012
We demonstrate that light scattering by all-dielectric oligomers exhibits well-pronounced Fano resonances with strong suppression of the scattering cross section. Our analysis reveals that this type of the Fano resonance originates from the optically induced magnetic dipole modes of individual high-dielectric nanoparticles.
Miroshnichenko, Andrey, Kivshar, Yuri
openaire   +3 more sources

Tunable Oscillating Fano Spectra in a Fiber Taper Coupled Conical Microresonator

IEEE Photonics Journal, 2019
Tunable oscillating Fano spectra are demonstrated theoretically and experimentally in a fiber taper coupled conical microresonator for the first time.
Yu Lu, Xiangshang Zhu, Jun Li, Yijie Nie, Mi Li, Yuejiang Song   +5 more
doaj   +1 more source