Results 61 to 70 of about 62,885 (100)

Mid‐infrared Spectroscopy of Protonated Benzonitrile, 2‐Cyanonaphthalene, and 9‐Cyanoanthracene for Astrochemical Consideration

ChemPhysChem, EarlyView.
Experimental infrared absorption spectra of three protonated cyano‐substituted PAHs measured by infrared multiple photon dissociation using the free‐electron laser Free‐Electron Laser for Infrared eXperiments are studied. These spectra are compared to an emission spectrum measured by JWST, and the largest measured protonated cyano‐PAH, cyanoanthracene,
Anne P. Rasmussen, Corentin Rossi, Bérenger Gans, Laura Finazzi, Jos Oomens, Giel Berden, Ugo Jacovella   +6 more
wiley   +1 more source

Apollo-Soyuz pamphlet no. 2: X-rays, gamma-rays [PDF]

, 1977
The nature of high energy radiation and its penetration through earth's atmosphere is examined with emphasis on X-rays, gamma rays, and cosmic radiation and the instruments used in their detection.
From, T. P., Page, L. W.
core   +1 more source

Analysis of image formation in optical palpation

Journal of Biophotonics, EarlyView.
Optical palpation is an emerging elastography technique that generates images of mechanical stress at the tissue surface, with applications in intraoperative cancer detection. Image formation is simulated using finite element analysis and validated with experiments on silicone phantoms, providing an analysis of trends in detectability, feature ...
R. Jones, Q. Fang, B. F. Kennedy
wiley   +1 more source

Black Plastic Identification for Sorting and Recycling With Deep‐UV Raman Spectroscopy

Journal of Raman Spectroscopy, EarlyView.
We present a deep ultraviolet (DUV) Raman spectrometer for sorting black plastics in recycling. The common identification modality of hyperspectral NIR struggles with black plastics due to strong absorption by the black pigment. By using a 248.6‐nm NeCu laser, we enable stand‐off detection over a conveyor belt while avoiding fluorescence interference ...
Liron Zada, Freek Ariese
wiley   +1 more source

UVSat: a concept of an ultraviolet/optical photometric satellite

, 2017
Time-series photometry from space in the ultraviolet can be presently done with only a few platforms, none of which is able to provide wide-field long-term high-cadence photometry.
Baran, A., Bzowski, M., Cugier, H., Czerny, B., Daszynska-Daszkiewicz, J., Dziembowski, W., Handler, G., Kolaczkowski, Z., Krolikowska, M., Krzesinski, J., Maciejewski, G., Michalska, G., Molenda-Zakowicz, J., Moskalik, P., Niedzielski, A., Niemczura, E., Ostrowski, J., Pamyatnykh, A., Pigulski, A., Ratajczak, M., Rucinski, S., Sarna, M., Siwak, M., Smolec, R., Szutowicz, S., Tomov, T., Wyrzykowski, L., Zola, S.   +27 more
core  

Modular and Automated Workflow for Streamlined Raman Signal Analysis

Journal of Raman Spectroscopy, EarlyView.
This study presents an automated workflow for preprocessing and analyzing Raman spectroscopy data, addressing key challenges such as noise suppression, baseline correction, and peak fitting using Voigt profiles. The method is validated on both synthetic and experimental spectra, demonstrating improved spectral fidelity and peak detection for biomedical
Mykyta Kizilov, Vsevolod Cheburkanov, Joseph Harrington, Vladislav V. Yakovlev   +3 more
wiley   +1 more source

Metasurfaces in Adaptive Optics: A New Opportunity in Optical Wavefront Sensing

Laser &Photonics Reviews, EarlyView.
Wavefront sensing constitutes a critical component of adaptive optics systems, aimed at quantitatively measuring distorted wavefronts and enabling closed‐loop correction in optical setups. Metasurfaces, as planar optical elements composed of nanoscale structures, provide exceptional freedom in modulating multiple dimensions of the light field.
Rundong Fan, Zichao Wang, Pei Li, Lei Huang   +3 more
wiley   +1 more source

Dynamic Retinal Pathology in Glaucoma Progression Revealed by High‐Resolution Functional Imaging in Vivo

Laser &Photonics Reviews, EarlyView.
In this work, we investigated the dynamic retinal pathology of glaucoma from onset to late stages through longitudinal in vivo high‐resolution imaging in a silicone oil‐induced ocular hypertension (SOHU) glaucoma mouse model. We developed an optimized adaptive optics two‐photon excitation fluorescence microscopy (AO‐TPEFM) technique for morphological ...
Yiming Fu, Pham Binh Minh, Sicong He, Yingzhu He, Zhongya Qin, Ting Xie, Jianan Qu   +6 more
wiley   +1 more source

Replica Wormholes and Quantum Hair

Fortschritte der Physik, EarlyView.
Abstract The recent applications of Euclidean path integrals to the black hole information problem are discussed. In calculations with replica wormholes as the next‐to‐leading order correction to the Gibbons–Hawking saddlepoint, the radiation density matrix approaches a pure state at late times, following the Page curve.
Xavier Calmet, Stephen D. H. Hsu
wiley   +1 more source

An Amino‐Yne Click Chemistry Approach for Multi‐Responsive Liquid Crystal Elastomer Actuators

Small, EarlyView.
The spontaneous amino‐yne click reaction is introduced as a fast, efficient, and ambient temperature strategy for preparing multi‐responsive Liquid Crystal Elastomer (LCE) actuators. The materials show reversible thermal and light‐induced actuation, as well as water‐driven actuation thanks to network's acid‐triggered reactivity.
Sara Bescós‐Ramo, Marco Turriani, Camilla Parmeggiani, Milagros Piñol, Luis Oriol, Daniele Martella   +5 more
wiley   +1 more source