Results 141 to 150 of about 908,384 (292)

Single‐Nanoparticle Detection Using Quasi‐Bound States in the Continuum Supported by Silicon Metasurfaces

Small Methods, EarlyView.
This study demonstrates the detection of virus‐sized single polystyrene particles in water by leveraging the ultrahigh‐Q nature of low‐contrast bound states in the continuum (BIC) metasurfaces. The resonance properties of silicon BIC metasurfaces—wavelength, linewidth, and amplitude—all exhibit single‐particle sensitivity, representing a unique sensing
Keisuke Watanabe, Samuel Crowther, Masanobu Iwanaga, Frank Vollmer, Tadaaki Nagao   +4 more
wiley   +1 more source

Monolithic electro-optic platform on silicon with bandwidth of 100 GHz and beyond. [PDF]

Nat Commun
Steckler D, Lischke S, Yamamoto Y, Wen WC, Peczek A, Beyer J, Kroh A, Fursenko O, Bärwolf F, Marschmeyer S, Kulse P, Wolansky D, Zimmermann L.   +12 more
europepmc   +1 more source

Characterization of a Portable Computed Tomography System for In Situ Analysis of Wooden Sculptures in Cultural Heritage

X-Ray Spectrometry, EarlyView.
ABSTRACT Portable X‐ray computed tomography (portable CT) has become an important tool for the non‐destructive investigation of cultural heritage objects, particularly when in situ analysis is required. This work presents the experimental characterization and application of a transportable cone‐beam CT system designed for the inspection of large and ...
Anderson de Paula, Isis Franzi, Roberta Borges, Josiane Cavalcante, Olga Araujo, Alessandra Machado, Ricardo Tadeu Lopes, Davi Ferreira de Oliveira   +7 more
wiley   +1 more source

A Low‐Power Radioisotope XRF Spectrometer for Detection of Light Elements on Planetary Missions

X-Ray Spectrometry, EarlyView.
ABSTRACT Current X‐ray spectrometers for in situ geochemical analysis on planetary missions typically rely either on X‐ray tubes, which demand electrical power and add mass and thermal complexity, or on alpha particle X‐ray spectrometers (APXS) that use rare 244Cm$$ {}^{244}\mathrm{Cm} $$ sources, and come with severe concerns on radiation safety and ...
Leandro Silveri, Artem Knyazev, Hashem Alaidaros, Maryam Manzoor Amanullah, Zach Ioannou, Tengiz Ibrayev, Danish Khan, Sara Leardini, Laura Manenti, Simi Maria Emilia Mangani, Safa Naseem, Sandhya Sharma, Sara Trevisan, Alia Zino, Francesco Arneodo   +14 more
wiley   +1 more source

Wide-Dynamic-Range Lead-Free SWIR Image Sensors Based on InAs Thin-Film Quantum-Dot Photodiodes ^†. [PDF]

Sensors (Basel)
Chu M, Song W, Kim JH, Weydts T, Pejovic V, Lee J, Jin M, Lee SY, Seo Y, Yoo H, Bentell J, Siddik AB, Monroy IP, Vildanova M, Zaman AU, Yoo TJ, Malainou A, Hussein W, Spagnolo A, Karve G, Lieberman I, Guerrieri S, Malinowski PE.   +22 more
europepmc   +1 more source

Alteration of X‐Ray Emission Band Spectrum Under Bragg Diffraction

X-Ray Spectrometry, EarlyView.
ABSTRACT We use a Zr/Si multilayer presenting a gradient of period to probe the shape of the Si L2,3 emission band (maximum around 92 eV) in and out of Bragg conditions. The sample was prepared by magnetron sputtering and its reflectance measured in the photon energy range of interest with synchrotron radiation.
Philippe Jonnard, Jean‐Michel André, Karine Le Guen, Nawel Temmar, Anthony Boucly, Nicolas Rividi, Wanqiu Bai, Angelo Giglia, Nicola Mahne, Sheng Guo, Jingtao Zhu   +10 more
wiley   +1 more source

A streamlined set-up for Lloyd's mirror interference lithography, using a single-mode-fibre-coupled laser. [PDF]

Microsyst Nanoeng
Lian E, Perivolari E, Liu Y, deMello JC.
europepmc   +1 more source

Development and modeling of a solid‐state microdosimeter for proton therapy applications

Precision Radiation Oncology, EarlyView.
Dante Guido Mercado, Lucía Cervantes Schamun, Juan Ignacio Drovandi, Norberto Boggio, Nadia Kondratiuk, María José Deiana, Mónica Martínez Bogado, Guido Matías Berlín   +7 more
wiley   +1 more source

Portable, Benchtop and Micro‐XRF in Agriculture—Present and Future From the Hardware Perspective

X-Ray Spectrometry, EarlyView.
ABSTRACT X‐ray fluorescence (XRF) spectrometry has been an important tool in agricultural studies recently. This technique allows the multielemental, direct, and in situ analysis. The objective of this review is to evaluate the use of XRF in agriculture focusing on plant and soil samples based on indexed articles in the Scopus database from 2020 to ...
Eduardo de Almeida, Felipe Rodrigues Santos, Fabio Luiz Melquiades, Gabriel Sgarbiero Montanha, Tiago Rodrigues Tavares, Eduardo Santos, Higor José Freitas Alves da Silva, Hudson Wallace Pereira de Carvalho   +7 more
wiley   +1 more source

Channel-cut monochromator withstanding incident powers above 400 W on undulator beamlines. [PDF]

J Synchrotron Radiat
Yamazaki H, Shimizu Y, Tsubota K, Tahara K, Shimizu S, Koyama T, Yumoto H, Osaka T, Inoue I, Yabashi M, Ohashi H.   +10 more
europepmc   +1 more source