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Dissertations / Theses on the topic 'Temperature dependent Raman measurements'

Author: Grafiati

Published: 6 September 2023

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1

Lee, Robert Benjamin III. "Tropospheric temperature measurements using a rotational raman lidar." Thesis, Hampton University, 2013. http://pqdtopen.proquest.com/#viewpdf?dispub=3592881.

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<p> Using the Hampton University (HU) Mie and Raman lidar, tropospheric temperature profiles were inferred from lidar measurements of anti-Stokes rotational Raman (RR) backscattered laser light from atmospheric nitrogen and oxygen molecules. The molecules were excited by 354.7 nanometer (nm) laser light emitted by the HU lidar. Averaged over 60-minute intervals, RR backscattered signals were detected in narrow 353.35 nm and 354.20 nm spectral bands with full-widths-at-half-maxima (FWHM) of 0.3 nm. During the special April 19-30, 2012, Ground-Based Remote Atmospheric Sounding Program (GRASP) c

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2

Lee, Sheng-Chiang. "Measurements of doping dependent microwave nonlinearities in high-temperature superconductors." College Park, Md. : University of Maryland, 2004. http://hdl.handle.net/1903/1372.

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Thesis (Ph. D.) -- University of Maryland, College Park, 2004.<br>Thesis research directed by: Physics. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.

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3

Jeyashekar, Nigil Satish. "Temperature and number density measurements using Raman scattering in turbulent-supersonic-combusting flows /." Full text available from ProQuest UM Digital Dissertations, 2006. http://0-proquest.umi.com.umiss.lib.olemiss.edu/pqdweb?index=0&did=1379528381&SrchMode=1&sid=4&Fmt=2&VInst=PROD&VType=PQD&RQT=309&VName=PQD&TS=1217357303&clientId=22256.

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4

Speriatu, Lucian M. "Temperature dependent mechanical properties of composite materials and uncertainties in experimental measurements." [Gainesville, Fla.] : University of Florida, 2005. http://purl.fcla.edu/fcla/etd/UFE0011370.

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5

Dupee, James David. "On-line crystallinity and temperature measurements of nylon 6,6 using a remote laser Raman probe." Thesis, Queen Mary, University of London, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.287935.

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6

Celik, Hakan. "Time and Temperature Dependent Surface Tension Measurements of Responsive Protein-based Polymer Surfactant Solutions." Cleveland State University / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=csu1440182119.

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7

Abel, Mark Richard. "Thermal Metrology of Polysilicon MEMS using Raman Spectroscopy." Thesis, Georgia Institute of Technology, 2005. http://hdl.handle.net/1853/7181.

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The development of microscale and nanoscale devices has outpaced the development of metrology tools necessary for their complete characterization. In the area of thermal MEMS technology, accurate measurements across a broad range of temperatures with high spatial resolution are not trivial. Thermal MEMS are devices in which the control and manipulation of temperature is necessary to perform a desired function, and are used in actuation, chemical sensing, nanolithography, thermal data storage, biological reactions and power generation. In order to properly design for reliability and performa

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8

Prastiyanto, Dhidik [Verfasser]. "Temperature- and Time-Dependent Dielectric Measurements and Modelling on Curing of Polymer Composites / Dhidik Prastiyanto." Karlsruhe : KIT Scientific Publishing, 2016. http://www.ksp.kit.edu.

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9

Pomeroy, James Wayne. "A temperature and pressure dependent Raman scattering study of III-nitride, icosahedral boride semiconductors and their devices." Thesis, University of Bristol, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.431633.

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10

Treiss, Stephanie. "TIME-DEPENDENT SURFACE TEMPERATURE and HEAT FLUX MEASUREMENTS on a SINGLE CYLINDER ENGINE HEAD and LINER." The Ohio State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=osu1512061036731254.

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11

Prastiyanto, Dhidik [Verfasser], and M. [Akademischer Betreuer] Thumm. "Temperature- and Time-Dependent Dielectric Measurements and Modelling on Curing of Polymer Composites / Dhidik Prastiyanto. Betreuer: M. Thumm." Karlsruhe : KIT-Bibliothek, 2015. http://d-nb.info/1074463641/34.

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12

Hammann, Eva [Verfasser], and Volker [Akademischer Betreuer] Wulfmeyer. "High-resolution measurements of temperature and humidity fields in the atmospheric boundary layer with scanning rotational Raman lidar / Eva Hammann ; Betreuer: Volker Wulfmeyer." Hohenheim : Kommunikations-, Informations- und Medienzentrum der Universität Hohenheim, 2016. http://d-nb.info/1115795031/34.

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13

Pal, Avishekh. "Laser Remote Sensing of Trace Chemical Species Using 10.6 μm CO₂ Laser Enhanced Breakdown Spectroscopy and Differential Absorption Lidar". Scholar Commons, 2008. https://scholarcommons.usf.edu/etd/441.

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Several different laser remote sensing techniques related to the detection of trace chemical species were studied. In particular, a Differential-Absorption lidar (DIAL), a Laser-Induced-Breakdown Spectroscopy (LIBS) lidar, and a Raman lidar were studied. Several of the laser spectroscopic techniques that were used were common throughout these different studies. More precisely, 10.6 μm CO2 laser related spectroscopy was common for the DIAL and LIBS studies, and 266 nm Nd:YAG laser related spectroscopy was used for the LIBS and Raman studies. In the first system studied a tunable CO2 DIAL system

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14

Baron, Alexandre. "Lidar Raman météorologique dédié à l’étude des cycles couplés des aérosols et de la vapeur d’eau." Electronic Thesis or Diss., université Paris-Saclay, 2020. http://www.theses.fr/2020UPASJ004.

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Les cycles couplés des aérosols, de la vapeur d’eau et des nuages sont à l’heure actuelle un domaine de recherche dynamique au cœur d’enjeux climatiques et météorologiques. Une meilleure compréhension des interactions entre ces différents cycles atmosphériques doit permettre de mieux appréhender les processus conduisant à des évènements météorologiques extrêmes et également de diminuer les incertitudes des projections climatiques, en grande partie liées aux interactions aérosols – nuages. Contribuant à ces efforts, les travaux présentés dans cette thèse sont fondés sur l'analyse d'observations

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15

LIN, ZHI-CHENG, та 林志誠. "Temperature dependence of raman measurements of the YBa�浚u�記�f high Tc superconducting thin films". Thesis, 1992. http://ndltd.ncl.edu.tw/handle/09426644659775643856.

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16

Pal, Sukanya. "Raman Studies of Topological Crystalline Insulator, Natural Heterostructures, Excitonic Insulator and Layered Oxide Under Pressure." Thesis, 2022. https://etd.iisc.ac.in/handle/2005/5824.

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The theme of this thesis is Raman spectroscopic study of a variety of exotic states of matter under extreme conditions, such as, hydrostatic pressure as high as 25 GPa and a wide temperature range from 77 K to 390 K. Raman spectroscopy and in some cases, X-ray diffraction studies were performed on systems such as; Topological Crystalline Insulator (TCI) SnTe, normal semiconductor SnSe, natural van der Waals heterostructures from the (SnTe)m(Bi2Te3)n (with m = 1 and n = 1, 2) homologous family, which are also predicted to be Topological Insulators (TI), then Excitonic Insulator (EI) Ta2NiSe5, a

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17

Lin, Kun-Zheng, and 林坤政. "Temperature-dependent Raman scattering of ZnSeO." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/65299621851060405488.

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碩士<br>國立中央大學<br>物理學系<br>101<br>The oxygen concentrations of ZnSe1-xOx alloys studied in this thesis are in the range of 1.5%x11.6%. Because of the limited oxygen solubility, Nabetani had proposed that ZnSeO alloy composition up to 6.4%. Our highest concentration up to 11.6%.In our previous study indicate the results of photoluminescence (PL) indicate that the relationship between band gap and oxygen composition can be well described in the framework of band anti-crossing model (BAC model). However, the full width of half maxima (FWHM) of signals becomes broader and the intensities become wea

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18

Sheen, Cheng Kan, and 沈政侃. "Temperature Dependent Raman Spectra and Crystal Growth of the Triglycin Sulfate." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/88304822727980953610.

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19

Liu, HsingKai, and 劉興凱. "Temperature Dependent Raman Spectra and Crystal Growth of Lithium Potassium Sulphate." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/83592094355899205333.

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20

Lin, Hsuan. "Temperature-dependent Raman features of the individual suspended single-walled carbon nanotubes." 2006. http://www.cetd.com.tw/ec/thesisdetail.aspx?etdun=U0016-1303200709313384.

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21

Lin, Hsuan, and 林萱. "Temperature-dependent Raman features of the individual suspended single-walled carbon nanotubes." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/48855660146205168630.

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碩士<br>國立清華大學<br>工程與系統科學系<br>94<br>In this study, resonance Raman spectroscopy (RRS) is employed to probe the structural information of CVD-synthesized single-walled carbon nanotubes (SWNTs) in ambient environment at various temperatures ranged from 300 K to 700 K. SWNTs are fabricated crossing as-formed deep trench on SiO2/Si to avoid the interferences from surrounding media such as the substrates. Furthermore, the enhanced RRS from suspended SWNTs (su-SWNTs) also helps to observe the slight changes of principal peaks as the temperature increased. We specially use the well-established Si Ra

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22

Tong-Pu, Hsieh, and 謝東浦. "Temperature-dependent Micro-Raman Study of Copolymer Poly(HB1-x-co-HVx)." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/32994147010558743276.

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碩士<br>輔仁大學<br>物理學系<br>98<br>Poly(3-hydroxybutyrate) (PHB) is one of the biodegradable and thermoplastic polymers. It has been receiving keen interest as new environmentally friendly material that will find applications in plastic industries. However, the rather high crystallinity (55-80%) of PHB keeps it from being a replaceable material for commodity plastics, mainly due to its stiff and brittle mechanical properties. Blended with poly(3- hydroxyvalerate) (PHV), which is also a biodegradable polymer, the copolymer P(HBx-co-HV1-x) shows substantially a reduced crystallinity and increased flex

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23

Huang, Ting-Chieh, and 黃鼎捷. "Temperature-dependent Raman vibration of alkaline-earth (Ca, Sr, Ba) doped BiFeO3 ceramics." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/80182701537522672895.

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碩士<br>輔仁大學<br>物理學系碩士班<br>103<br>ABSTRACT This work studies the temperature-dependent Raman scattering in A-site doped (Bi1-xAEx)FeO3-δ (x=0.0, 0.05, 0.10, and 0.15; AE= Ca, Sr, Ba) multiferroic ceramics in the low temperature range of -150 – 25 oC. Raman spectra and XRD reveal a rhombohedrally distorted perovskite structure with R3c space group in BiFeO3. However, the doped samples of 5 %, 10%, and 15% have a structure transition towards a nonrhombohedral symmetry with increasing Ca, Sr, and Ba concentrations. The Raman spectra of all doped BFO samples reveal a sudden change in the peak po

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24

Jan, Ja-Chin, and 簡杰青. "Temperature Dependent Photoluminescence and Raman Scattering Studies on ZnSen Doped Glass Thin Films." Thesis, 1997. http://ndltd.ncl.edu.tw/handle/81231496322485062033.

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碩士<br>國立交通大學<br>光電工程研究所<br>85<br>Temperature dependent photolummescence and Raman spectroscopy were used to analyze the properties of ZnSe doped glass thin films. From the temperature dependent Raman spectra, the phonon lifetime and spectra width decrease at high temperature because of the decay of optical phonons into low energy phonons. From the temperature dependent photolum-inescence, we observed the peaks shift to the lower energy and decrease in intensity with increasing temperature related to the transition of free electron-hole and free electron-acceptor. The former is due to change

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25

Verma, Prabhat. "Temperature dependent Raman studies of ion-implanted and pulse laser annealed gallium arsenide." Thesis, 1994. http://localhost:8080/iit/handle/2074/4107.

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26

Chao, Feng Chiang, and 趙鳳強. "Temperature-dependent Polarization Measurements in Relaxor Ferroelectric PMN-PT and PZN-PT Single Crystals." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/05449950965147332485.

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碩士<br>輔仁大學<br>物理學系<br>88<br>ABSTRACT The dielectric constant and polarization-electric field (P-E) hysteresis loops have been measured as a function of temperature in relaxor ferroelectric single crystals (PbZn1/3Nb2/3O3)1-x(PbTiO3)x (PZN-xPT) for x=0.085 and (PbMg1/3Nb2/3O3)1-x(PbTiO3)x (PMN-xPT) for x=0.24, 0.31, 0.32 and 0.33. We found that the coercive field Ec and polarization of P-E hysteresis loop increases with increasing PT content. A sharp ferroelectric transition with an abrupt step-like discontinuity in polarization was observed near 370 K for PMN-0.24PT, 390 K for PM

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27

Saha, Surajit. "Phonon Anomalies And Phase Transitions In Pyrochlore Titanates, Boron Nitride Nanotubes And Multiferroic BiFeO3 : Temperature- And Pressure-Dependent Raman Studies." Thesis, 2010. https://etd.iisc.ac.in/handle/2005/2244.

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This thesis presents experimental and related theoretical studies of pyrochlore titanate oxides, boron nitride nanotubes, and multiferroic bismuth ferrite. We have investigated these systems at high pressures and at low temperatures using Raman spectroscopy. Below, we furnish a synoptic presentation of our work on these three systems. In Chapter 1, we introduce the systems studied in this thesis, viz. pyrochlores, boron nitride nanotubes, and multiferroic BiFeO3, with a review of the literature pertaining to their structural, electronic, vibrational, and mechanical properties. We also bring

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28

Saha, Surajit. "Phonon Anomalies And Phase Transitions In Pyrochlore Titanates, Boron Nitride Nanotubes And Multiferroic BiFeO3 : Temperature- And Pressure-Dependent Raman Studies." Thesis, 2010. http://etd.iisc.ernet.in/handle/2005/2244.

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This thesis presents experimental and related theoretical studies of pyrochlore titanate oxides, boron nitride nanotubes, and multiferroic bismuth ferrite. We have investigated these systems at high pressures and at low temperatures using Raman spectroscopy. Below, we furnish a synoptic presentation of our work on these three systems. In Chapter 1, we introduce the systems studied in this thesis, viz. pyrochlores, boron nitride nanotubes, and multiferroic BiFeO3, with a review of the literature pertaining to their structural, electronic, vibrational, and mechanical properties. We also bring o

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29

Radlach, Marcus [Verfasser]. "A scanning eye safe rotational Raman lidar in the ultraviolet for measurements of tropospheric temperature fields / vorgelegt von Marcus Radlach." 2009. http://d-nb.info/993405002/34.

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30

Okamoto, James Kozo. "Temperature-dependent extended electron energy loss fine structure measurements from K, L23, and M45 edges in metals, intermetallic alloys, and nanocrystalline materials." Thesis, 1993. https://thesis.library.caltech.edu/4941/1/Okamoto_jk_1993.pdf.

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This dissertation developed the extended energy loss fine structure (EXELFS) technique. EXELFS experiments using the Al K, Fe L23 and Pd M45 edges in the elemental metals gave nearest-neighbor distances which were accurate to within ± 0.1 A. In addition, vibrational mean-square relative displacements (MSRD) derived from the temperature dependence of the EXELFS compared favorably with predictions from published force constant models derived from inelastic neutron scattering data. Thus, information about "local" atomic environments can be obtained not only from K edges, but from L23 and M45 edge

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31

Bélanger, Desmarais Nicolas. "Spectroscopie de luminescence et Raman de matériaux moléculaires cristallins et modélisation par la théorie de la fonctionnelle de la densité." Thèse, 2018. http://hdl.handle.net/1866/21692.

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32

Mtangi, Wilbert. "Electrical characterization of ZnO and metal ZnO contacts." Diss., 2010. http://hdl.handle.net/2263/28131.

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The electrical properties of ZnO and contacts to ZnO have been investigated using different techniques. Temperature dependent Hall (TDH) effect measurements have been used to characterize the as-received melt grown ZnO samples in the 20 – 330 K temperature range. The effect of argon annealing on hydrogen peroxide treated ZnO samples has been investigated in the 200 – 800oC temperature range by the TDH effect measurement technique. The experimental data has been analysed by fitting a theoretical model written in Matlab to the data. Donor concentrations and acceptor concentrations together with

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33

Mehner, Erik. "Pyroelektrische Materialien: elektrisch induzierte Phasenumwandlungen, thermisch stimulierte Radikalerzeugung." Doctoral thesis, 2017. https://tubaf.qucosa.de/id/qucosa%3A31917.

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Zur Messung pyrelektrischer Koeffzienten wurde ein Messplatz nach einem erweiterten SHARP-GARN-Verfahren entwickelt und zur Untersuchung von Phasenumwandlungen in Pyroelektrika eingesetzt. Einerseits konnten pyroelektrische Messungen im elektrischen Feld die Pyroelektrizität einer neuen durch elektrisch angetriebene Defektmigration erzeugten Phase in Strontiumtitanat nachweisen. Andererseits gelang es, Ferroelektrizität in der Hochtemperaturphase von Poly(Vinylidenfluorid-Trifluorethylen), mittels phasenreiner Präparation der Hochtemperaturphase unterhalb der CURIEtemperatur und anschließend

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