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Scintillation detector is widely used for the particle detection in the field of particle physics. Particle detectors containing fluorine-19 ($^{19}\mathrm{F}$) are known to have advantages for Weakly Interacting Massive Particles (WIMPs)…

Instrumentation and Detectors · Physics 2022-01-03 Keita Mizukoshi , Takeshi Maeda , Yuuki Nakano , Satoshi Higashino , Kentaro Miuchi

This work studies the effect of temperature on the binding energy of a shallow hydrogenic impurity located on the axis of a cylindrical semiconductor GaAs Al_x Ga_{1-x} As quantum well wire. The results show that the binding energy at a low…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 T G Emam

GaN defect-based quantum emitters show significant potential for quantum information technologies, yet their intrinsic nature is not fully understood. In this work, we present results on the temperature-dependent emission polarization of…

Optics · Physics 2025-05-20 Yifei Geng

The optical amplification emission of hybrid lead perovskite attracted great research interests. We systematically examined and compared temperature dependent optical amplification behavior of a series of organic-inorganic hybrid perovskite…

Applied Physics · Physics 2020-01-01 Yang Liu , Ju Wang , Ning Zhu , Wei Liu , Cuncun Wu , Congyue Liu , Lixin Xiao , Zhijian Chen , Shufeng Wang

The temperature dependence of optical constants of titanium nitride thin film is investigated using spectroscopic ellipsometry between 1.4 to 5 eV in the temperature range 300 K to 650 K in steps of 50 K. The real and imaginary parts of the…

Materials Science · Physics 2016-11-26 S. Tripura Sundari , R. Ramaseshan , Feby Jose , S. Dash , A. K. Tyagi

Understanding broadband photoconductive behaviour in two dimensional layered materials are important in order to utilize them for a variety of opto-electronic applications. Here we present our results of photocurrent spectroscopy…

Mesoscale and Nanoscale Physics · Physics 2021-07-15 Prasanna D. Patil , Milinda Wasala , Sujoy Ghosh , Sidong Lei , Saikat Talapatra

We report the temperature dependence of the zero-bias conductance of a single-electron transistor in the regime of weak coupling between the quantum dot and the leads. The Fano line shape, convoluted with thermal broadening, provides a good…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 I. G. Zacharia , D. Goldhaber-Gordon , G. Granger , M. A. Kastner , Yu. B. Khavin , Hadas Shtrikman , D. Mahalu , U. Meirav

We study the effects of temperature on the band structure of the Bi$_2$Se$_3$ family of topological insulators using first-principles methods. Increasing temperature drives these materials towards the normal state, with similar…

Materials Science · Physics 2016-11-30 Bartomeu Monserrat , David Vanderbilt

With a terahertz time-domain spectrometer (0.3 - 3.0 THz) we have measured the optical conductivity of the type-I clathrate Ba$_8$Ga$_{16}$Sn$_{30}$ at temperatures from 300 K down to 7 K. Independent six spectra superimposed on the Drude…

Materials Science · Physics 2010-07-27 T. Mori , K. Iwamoto , S. Kushibiki , H. Honda , H. Matsumoto , N. Toyota , K. Suekuni , M. A. Avila , T. Takabatake

Avalanche photodiodes (APDs) are promising light sensor for various fields of experimental physics. It has been argued, however, that variation of APD gain with temperature could be a serious problem preventing APDs from replacing…

We present here a comprehensive study of the light yield of primary and secondary scintillations produced in gaseous and liquid Ar in the near infrared (NIR) and visible region, at cryogenic temperatures. The measurements were performed…

Instrumentation and Detectors · Physics 2015-03-18 A. Bondar , A. Buzulutskov , A. Dolgov , A. Grebenuk , S. Peleganchuk , V. Porosev , L. Shekhtman , E. Shemyakina , A. Sokolov

Accurate and precise measurements of spectroradiometric temperature are crucial for many high pressure experiments that use diamond anvil cells or shock waves. In experiments with sub-millisecond timescales, specialized detectors such as…

Instrumentation and Detectors · Physics 2023-10-26 Zachary M. Geballe , Francesca Miozzi , Chris F. Anto , Javier Rojas , Jing Yang , Michael J. Walter

he frequency dependence in the mid IR from 900 to 1100 cm$^{-1}$ and far IR at 84 cm$^{-1}$ and temperature dependence from 35 to 330 K of the normal state Hall transport is reported in single crystal, optimally doped…

Superconductivity · Physics 2007-05-23 D. C. Schmadel , G. S. Jenkins , J. J. Tu , G. D. Gu , Hiroshi Kontani , H. D. Drew

We have measured the intricate temperature dependence of the Co L2,3 x-ray absorption spectra (2p-3d excitations) of CoO. To allow for accurate total electron yield measurements, the material has been grown in thin film form on a metallic…

Strongly Correlated Electrons · Physics 2008-06-24 M. W. Haverkort , A. Tanaka , Z. Hu , H. H. Hsieh , H. -J. Lin , C. T. Chen , L. H. Tjeng

Besides their electrical properties the optical parameters of LEDs also depend on junction temperature. For this reason thermal characterization and thermal management play important role in case of power LEDs, necessitating both physical…

Materials Science · Physics 2007-09-13 A. Poppe , G. Farkas , G. Horvath

Optical and Hall-effect measurements have been performed on single crystals of Pb$_{0.77}$Sn$_{0.23}$Se, a IV-VI mixed chalcogenide. The temperature dependent (10--300 K) reflectance was measured over 40--7000 cm$^{-1}$ (5--870 meV) with an…

Strongly Correlated Electrons · Physics 2014-12-31 Naween Anand , Zhiguo Chen , Sanal Buvaev , Kamal Choudhary , C. Martin , Genda Gu , S. B. Sinnott , Zhiqiang Li , A. F. Hebard , D. B. Tanner

A comprehensive experimental and theoretical study of the low temperature properties of GdCoIn$_5$ was performed. Specific heat, thermal expansion, magnetization and electrical resistivity were measured in good quality single crystals down…

A statistical (thermal) model is applied to the description of hadron yields measured at central nucleus-nucleus collisions at the top RHIC energy $\sqrt{s_{NN}} = 200$ GeV and the LHC energy $\sqrt{s_{NN}} = 2.76$ TeV. In contrast to the…

Nuclear Theory · Physics 2021-05-19 Dariusz Prorok

The microwave, near-millimetre and infrared (IR) dielectric response of Srn+1TinO3n+1 (n=1-4) Ruddlesden-Popper homologous series was studied in the temperature range 10 to 300 K. Remarkable softening of the polar optical mode was observed…

Materials Science · Physics 2007-05-23 D. Noujni , S. Kamba , A. Pashkin , V. Bovtun , J. Petzelt , A-K. Axelsson , N. McN Alford , P. L. Wise , I. M. Reaney

Temperature measurement with nano-Kelvin resolution is demonstrated at room temperature, based on the thermal dependence of an optical crystal anisotropy in a high quality whispering gallery resonator. As the resonator's TE and TM modes…

Optics · Physics 2011-07-26 D. V. Strekalov , R. J. Thompson , L. M. Baumgartel , I. S. Grudinin , N. Yu