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We develop Dy$^{3+}$-doped yttrium complexes for use as two-color thermometry (TCT) phosphor molecular crystals in heterogeneous materials. These complexes include: Dy:Y(acac)$_3$(phen), Dy:Y(hfa)$_3$(DPEPO), Dy:Y(4-BBA)$_3$(TPPO),…

Chemical Physics · Physics 2017-06-09 Benjamin R. Anderson , Ray Gunawidjaja , Hergen Eilers

Luminescence in Eu$^{2+}$ activated materials corresponds to a transition from an excited state where the lowest Eu 5$d$ level is filled with one electron (often called the (Eu$^{2+}$)$^*$ state) to the ground state with half-filled 4$f$…

Materials Science · Physics 2014-08-12 A. Chaudhry , R. Boutchko , S. Chourou , G. Zhang , N. Grønbech-Jensen , A. Canning

LiOsO3 is one of the first materials identified in a recent literature as a 'polar metal', a class of materials that are simultaneously noncentrosymmetric and metallic. In this work, the linear and nonlinear optical susceptibility of LiOsO3…

Owing to their unique tunable optical properties, chalcogenide phase change materials are increasingly being investigated for optics and photonics applications. However, in situ characterization of their phase transition characteristics is…

Cryogenic temperatures are the prerequisite for many advanced scientific applications and technologies. The accurate determination of temperature in this range and at the submicrometer scale is, however, nontrivial. This is due to the fact…

Lanthanides are vital components in lighting, imaging technologies and future quantum memory applications due to their narrow optical transitions and long spin coherence times. Recently, diamond has become a preeminent platform for…

Materials Science · Physics 2015-06-18 Andrew Magyar , Wenhao Hu , Toby Shanley , Michael E. Flatte , Evelyn Hu , Igor Aharonovich

In this paper we study the thermal effective behaviour for 3D multiphase composite material consisting of three isotropic phases which are the matrix, the inclusions and the coating media. For this purpose we use an accelerated FFT-based…

Computational Engineering, Finance, and Science · Computer Science 2015-04-29 Sophie Lemaitre , Vladimir Salnikov , Daniel Choi , Philippe Karamian

Nanoporous gold can be exploited as plasmonic material for enhanced spectroscopy both in the visible and in the near infrared spectral regions. In particular, with respect to bulk metal it presents interesting optical properties in the…

Applied Physics · Physics 2019-10-02 Eugenio Calandrini , Giorgia Giovannini , Denis Garoli

With the development of electronic structure theory, a new class of materials - quantum ones has been recognized by the community. Traditionally, it has been believed that the properties of such compounds cannot be described within the…

Materials Science · Physics 2023-11-10 Himanshu Joshi , Mateusz Wlazło , Harshan Reddy Gopidi , Oleksandr I. Malyi

This work builds on the previous introduction [1] of a coupled experimental-computational system devised to fully characterize the thermal behavior of complex 3D submicron electronic devices. The new system replaces the laser-based surface…

Materials Science · Physics 2007-09-13 Peter E. Raad , Pavel L. Komarov , M. Burzo

Next-generation nano and quantum devices have increasingly complex 3D structure. As the dimensions of these devices shrink to the nanoscale, their performance is often governed by interface quality or precise chemical or dopant composition.…

This research investigates the structural, topological, electrical and optical properties of pulsed laser deposited polycrystalline BiFeO3 thin films on silicon and glass substrate at varying deposition temperatures ranging from 400 degC to…

Materials Science · Physics 2025-03-04 Viswajit R S , Jinesh K. B , Ashok K

The newly discovered 2D magnetic materials provide new opportunities for basic physics and device applications. However, their low Curie temperature (TC) is a common weakness. In this paper, by combining magnetic Hamiltonian, Wannier…

Materials Science · Physics 2020-11-06 Hongxing Li , Zi-Peng Cheng , Bin-Guang He , Wei-Bing Zhang

We characterize the optical coherence and energy-level properties of the 795 nm $^3$H$_6$ to $^3$H$_4$ transition of Tm$^{3+}$ in a Ti$^{4+}$:LiNbO$_{3}$ waveguide at temperatures as low as 0.65 K. Coherence properties are measured with…

An effect of alloying of the monoclinic beta- Ga2O3 with Al2O3 and In2O3 on the photoluminescent, thermoluminescent and persistent luminescent properties of Cr3+ ions has been comprehensively investigated. For this purpose, various series…

The spectra from Fe-peak elements may be used to determine the temperature and density of various astrophysical objects. Determination of these quantities is underpinned by the accuracy and the comprehensiveness of the underlying atomic…

Instrumentation and Methods for Astrophysics · Physics 2018-12-19 Luis Fernández-Menchero , Ryan T. Smyth , Catherine A. Ramsbottom , Connor P. Ballance

The normal ferroelectric to paraelectric phase transition in model ferroelectric materials such as BaTiO3 is typically characterized by a sharp, well-defined dielectric constant peak at a specific transition temperature. However, under…

Materials Science · Physics 2025-10-17 Prithwiraj Ganguly , Prashant Joshi , Maneesha Puthiyoth , Dilip Sasmal , Somaditya Sen

The enhancement of Er$^{3+}$-based up-conversion for photovoltaics in multilayer porous silicon photonic structures is considered theoretically and experimentally. Transfer matrix simulations are used to assess the increased photonic…

Optics · Physics 2012-09-06 Craig M. Johnson , Peter J. Reece , Gavin J. Conibeer

The temperature dependence of the steady-state fluorescence spectrum of anthracene crystals range from 300K to 500K had been investigated, which was in the temperature range of most tabletop laser-driven shock wave experiments. The…

Applied Physics · Physics 2019-08-06 Cheng Tang , Xiaojun Zhu , Yunfei Song , Weilong Liu , Qingxin Yang , Zhe lv , Yanqiang Yang

TlSr2I5: Eu2+ is a newly discovered scintillator and show promising scintillation properties for X- and {\gamma}-rays spectroscopy applications. Two zones vertical Bridgman technique is used for the growth of this scintillator. Luminescence…

Instrumentation and Detectors · Physics 2017-09-18 H. J. Kim , Gul Rooh , Arshad Khan , H. Park , Sunghwan Kim
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