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We have studied the environmental effect on optical-NIR color gradients of 273 nearby elliptical galaxies. Color gradient is a good tool to study the evolutionary history of elliptical galaxies, since the steepness of the color gradient…

Astrophysics · Physics 2015-06-24 Jongwan Ko , Myungshin Im

Modeling a crystal as a periodic point set, we present a fingerprint consisting of density functions that facilitates the efficient search for new materials and material properties. We prove invariance under isometries, continuity, and…

Computational Geometry · Computer Science 2021-06-28 Herbert Edelsbrunner , Teresa Heiss , Vitaliy Kurlin , Philip Smith , Mathijs Wintraecken

Ellipsometry is a technique whereby the measurement of the two orthogonal polarization components of light reflected at glancing incidence allows a characterization of the optical properties of a material at a particular frequency.…

Optics · Physics 2015-06-15 M. Neshat , N. P. Armitage

The long-wavelength optical properties of a plasmonic crystal composed of gold nanorod particles have been studied. Because of the strong coupling between the incident light and vibrations of free electrons, bulk polariton excitation can be…

Mesoscale and Nanoscale Physics · Physics 2010-01-05 Cheng-ping Huang , Xiao-gang Yin , Qian-jin Wang , Huang Huang , Yong-yuan Zhu

The thick-target ISOL (Isotope mass Separation OnLine) method provides beams of more than 1000 radionuclides of 74 elements. The method is well established for elements with sufficiently high volatility at ca. 2000 {\deg}C. To extract…

Instrumentation and Detectors · Physics 2022-05-04 J. Ballof , M. Au , E. Barbero , K. Chrysalidis , Ch. E. Düllmann , V. Fedosseev , E. Granados , R. Heinke , B. Marsh , M. Owen , S. Rothe , T. Stora , A. Yakushev

We present a catalogue of 233 BL Lacertae objects compiled through an extensive bibliographic search updated to mid-1995. A large fraction of the sources listed in the catalogue belongs to well-defined samples and can be used for…

Astrophysics · Physics 2015-06-24 Paolo Padovani , Paolo Giommi

Context: The stellar populations in the central region of the Galaxy are poorly known because of the high visual extinction and very great source density in this direction. Aims: To use recent infrared surveys for studying the dusty stellar…

Astrophysics · Physics 2012-07-07 F. Schuller , A. Omont , I. S. Glass , M. Schultheis , M. P. Egan , S. D. Price

Inductively Coupled Plasma Mass Spectrometry (ICP-MS) allows for rapid, high-sensitivity determination of trace impurities, notably the primordial radioisotopes $^{238}$U and $^{232}$Th, in candidate materials for low-background rare-event…

Instrumentation and Detectors · Physics 2018-03-14 J. Dobson , C. Ghag , L. Manenti

Faithful manipulation of shape, material, and illumination in 2D Internet images would greatly benefit from a reliable factorization of appearance into material (i.e., diffuse and specular) and illumination (i.e., environment maps). On the…

Graphics · Computer Science 2017-11-15 Tuanfeng Y. Wang , Tobias Ritschel , Niloy J. Mitra

Petrography is a branch of geology that analyzes the mineralogical composition of rocks from microscopical thin section samples. It is essential for understanding rock properties across geology, archaeology, engineering, mineral…

Computer Vision and Pattern Recognition · Computer Science 2025-11-04 Isai Daniel Chacón , Paola Ruiz Puentes , Jillian Pearse , Pablo Arbeláez

We demonstrate the utility of Raman spectroscopy as a technique for the identification of ancient glasses and enamel coatings of ceramics. As for any silicate glasses, the addition of network modifiers breaks the Si-O linkages and modifies…

Materials Science · Physics 2007-05-23 Philippe Colomban

We present results from the LymAn Continuum Escape Survey (LACES), a Hubble Space Telescope (HST) program designed to characterize the ionizing radiation emerging from a sample of Lyman alpha emitting galaxies at redshift $z\simeq 3.1$. As…

In this interdisciplinary paper, we study the formation of iron precipitates - the so-called Liesegang rings - in Lecce stones in contact with iron source. These phenomena are responsible of exterior damages of lapideous artifacts, but also…

Mid-wave infrared (IR) and long-wave IR spectral ranges are of growing interest in various applications such as thermal imaging, thermography-based remote sensing, and night vision. Materials widely used for IR photodetectors in this regime…

We provide a new method to derive heavy element abundances based on the unique suite of nebular lines in the mid- to far-infrared (IR) range. Using grids of photo-ionisation models that cover a wide range in O/H and N/O abundances, and…

Astrophysics of Galaxies · Physics 2021-08-11 J. A. Fernández-Ontiveros , E. Pérez-Montero , J. M. Vílchez , R. Amorín , L. Spinoglio

Stellar population synthesis models can now reproduce the photometry of old stellar systems (age $>$ 2 Gyr) in the near-infrared (NIR) bands at 3.4 and 4.6$\mu$m (WISE W1 $\&$ W2 or IRAC 1 $\&$ 2). In this paper we derive stellar…

Metastable states form by charge (electron and hole) capture in defects in a solid. They play an important role in dosimetry, information storage, and many medical and industrial applications of photonics. Despite many decades of research,…

Materials Science · Physics 2020-09-01 Mayank Jain , Raju Kumar , Myungho Kook

Ionoluminescence (IL) and photoluminescence (PL) of trivalent erbium ions (Er3+) in Gd2O3 nanopowder host activated with Bi3+ ions has been studied in order to establish the link between changes in luminescent spectra and temperature of the…

Chemical Physics · Physics 2016-06-28 Zuzanna Boruc , Grzegorz Gawlik , Bartosz Fetliński , Marcin Kaczkan , Michał Malinowski

With its origin coming from several sources (Big Bang, stars, cosmic rays) and given its strong depletion during its stellar lifetime, the lithium element is of great interest as its chemical evolution in the Milky Way is not well…

Extensive information can be obtained on wave-particle interactions and wave fields by direct measurement of perturbed ion distribution functions using laser-induced fluorescence (LIF). For practical purposes, LIF is frequently performed on…

Plasma Physics · Physics 2018-01-16 F. Chu , F. Skiff