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Relevant bibliographies by topics / Optical cycle / Dissertations / Theses

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Dissertations / Theses on the topic 'Optical cycle'

Author: Grafiati

Published: 1 June 2024

Last updated: 31 July 2025

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1

Kim, Jung-Won 1976. "Toward single-cycle optical pulses." Thesis, Massachusetts Institute of Technology, 2004. http://hdl.handle.net/1721.1/32336.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2004.<br>Includes bibliographical references (p. 143-151).<br>Single-cycle optical pulses, the never-before-achieved regime, have a great potential for attosecond science and phase-sensitive nonlinear optics. To achieve single-cycle optical pulses by active synchronization, three major steps are required. Firstly, two very stable and broadband mode-locked lasers with overlapping spectra are necessary. Secondly, a tight timing synchronization with timing jitter under one-tenth of the synt

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2

Ališauskas, Skirmantas. "Infrared Few-Cycle Pulse Optical Parametric Amplifier." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2010. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2010~D_20101001_145118-06284.

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Main objective of this thesis is to generate and amplify few cycle pulses in the infrared region. In this thesis, two approaches were introduced for few cycle pulse parametric amplification at 800 nm and 1.5 μm. First approach is dedicated for prospects for increasing average power of OPCPA via multi-beam pumping; the second approach is dedicated for generation of carrier-envelope-phase (CEP) stable high energy (up to tens of millijoules) few-cycle pulses at 1.5 μm. An experimental investigation of two or three beams-pumped OPCPA system based on type I BBO crystal is presented. The 2nd OPA sta

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3

Huang, Shu-Wei Ph D. Massachusetts Institute of Technology. "High-energy sub-cycle optical waveform synthesizer." Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/75634.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2012.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 147-157).<br>Over the last decade, the control of atomic-scale electronic motion by optical fields strong enough to mitigate the atomic Coulomb potential, has broken tremendous new ground with the advent of phase controlled high-energy few-cycle pulse sources. In particular, broadband optical parametric chirped pulse amplifier (OPCPA) has been investigated intensively in recent years to enable stu

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4

He, Dong. "Efficient cycle algorithms for capacitated optical network design." Thesis, University of Ottawa (Canada), 2005. http://hdl.handle.net/10393/26919.

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This thesis studies the cycle-based protection schemes for DWDM (Dense Wavelength Division Multiplexing) networks. We first present the MSCC (Min-Sum Cycle Cover) Algorithm for simultaneous detection and protection using the Eulerian graph theory, and then analyze the performance of the algorithm through making comparison of it with other algorithms. By extending the features of algorithm SLA (Straddling Link Algorithm) and initial ideas for p-cycle candidate generation (operations called Add and Join), we formulate more advanced cycle-generation algorithms: SP-Add, SP-Join and SP-Merge. We t

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5

Siddiqui, Aleem 1977. "Few-cycle and cavity-enhanced optical parametric amplification." Thesis, Massachusetts Institute of Technology, 2013. http://hdl.handle.net/1721.1/79494.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2013.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 179-185).<br>Optical parametric amplifiers have emerged as important optical sources by extending the properties of few-cycle laser sources, which exist only in materials with sufficiently large gain bandwidths, to wide array of spectral ranges. The work reported in this thesis relates to two areas for the continued development of optical parametric amplification based sources. First, we present a

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6

Laban, Dane Edward. "Highly Nonlinear Optical Phenomena with Few-Cycle Light Pulses." Thesis, Griffith University, 2014. http://hdl.handle.net/10072/365337.

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This thesis details two investigations of highly nonlinear optical phenomena using few-cycle light pulses. Specifically, self-focusing in air with carrier-envelope phase locked pulses and high-order harmonic generation from successive sources. Producing few-cycle light pulses with a sufficient intensity to observe these phenomena has only become possible with the recent development of mode-locked lasers. By observing the behaviour of atoms in such an intense electromagnetic field, new conclusions can be drawn on the nature of nonlinear phenomena. Intense electromagnetic fields propagate nonli

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7

Bates, Philip Kevin. "Optical parametric chirped pulse amplification in the few-cycle regime." Thesis, Imperial College London, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.445345.

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8

Krogen, Peter Ra. "A novel few-cycle optical source in the mid-infrared." Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/93067.

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Thesis: S.M., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2014.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 43-45).<br>In this thesis, I designed, simulated, and implemented a novel optical pulse generation system which is shown to be able to generate exceptionally short optical pulses in the mid-infrared, tunable from 2-4[mu]m with pulse widths as low as 1.5 optical cycles at 3.5[mu]m (18fs). Energies as high a 1[mu]J were achieved, representing a peak power of roughly 100MW, at a 1kHz repetition

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9

Krogen, Peter Ra. "A novel single-cycle optical source in the mid-infrared." Thesis, Massachusetts Institute of Technology, 2016. http://hdl.handle.net/1721.1/105945.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2016.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Cataloged from student-submitted PDF version of thesis.<br>Includes bibliographical references (pages 90-106).<br>In this thesis, I demonstrate the generation of single-optical-cycle pulses in the mid-infrared, which are generated using adiabatic difference frequency in an aperiodically polled lithium niobate crystal. The inp

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10

Hallberg, Oskar. "Simulation and optimization of a multi-TW few-cycle optical parametric synthesizer." Thesis, Umeå universitet, Institutionen för fysik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-142100.

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The Light Wave Synthesizer 20 (LWS20) is an Optical Parametric Synthesizer (OPS) system used for relativistic attosecond physics research. The LWS20 performs OPS through the means of multiple two-color pumped Noncollinear Optical Parametric Chirped Pulse Ampliﬁcation (NOPCPA) stages. NOPCPA is basedon the nonlinear optical effect Optical Parametric Ampliﬁcation (OPA) which is only described analytically through simpliﬁed expressions. A natural route around this difficulty is through the means of numerical models. In this thesis a (2+1) dimensional simulation software [1], [2] is used to simula

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11

Ripin, Daniel Jacob 1973. "A few-cycle Cr⁴⁺:YAG laser and optical studies of photonic crystals." Thesis, Massachusetts Institute of Technology, 2002. http://hdl.handle.net/1721.1/8291.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 2002.<br>Includes bibliographical references (p. 261-279).<br>A prismless Cr4+:YAG laser was used to generate 20 fs pulses at 1450 nm with a bandwidth of 190 nm FWHM. Intracavity group velocity dispersion was compensated with double-chirped mirrors. Pulse spectrum was observable from 1140 to >1700 nm. Broadband saturable Bragg reflectors were designed and used to ensure self-starting of 35 fs pulses in the ultrafast Cr4+:YAG laser or to generate picosecond pulses tunable from 1400 to 1525 nm. The mirrors were a 7-pair Ga

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12

Wan, Hui [Verfasser], and Jörg [Akademischer Betreuer] Wrachtrup. "Nonlinear optical microspectroscopy with few-cycle laser pulses / Hui Wan ; Betreuer: Jörg Wrachtrup." Stuttgart : Universitätsbibliothek der Universität Stuttgart, 2017. http://d-nb.info/1156611520/34.

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13

Ridente, Enrico [Verfasser], and Ferenc [Akademischer Betreuer] Krausz. "Few-cycle optical waveforms for transient molecular fingerprinting / Enrico Ridente ; Betreuer: Ferenc Krausz." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2021. http://nbn-resolving.de/urn:nbn:de:bvb:19-285410.

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14

Vaupel, Andreas. "High Energy, High Average Power, Picosecond Laser Systems to Drive Few-Cycle OPCPA." Doctoral diss., University of Central Florida, 2013. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/5881.

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The invention of chirped-pulse amplification (CPA) in 1985 led to a tremendous increase in obtainable laser pulse peak intensities. Since then, several table-top, Ti:sapphire-based CPA systems exceeding the 100 TW-level with more than 10 W average power have been developed and several systems are now commercially available. Over the last decade, the complementary technology of optical parametric chirped-pulse amplification (OPCPA) has improved in its performance to a competitive level. OPCPA allows direct amplification of an almost-octave spanning bandwidth supporting few-cycle pulse durations

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15

Wall, Simon. "Photo-induced dynamics in complex materials probed with femtosecond x-rays and few cycle optical pulses." Thesis, University of Oxford, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.510258.

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16

Culver, Mary Evans. "Applications of chlorophyll a fluorescence in bio-optical models of phytoplankton biomass and productivity / by Mary Evans Culver." Thesis, Connect to this title online; UW restricted, 1996. http://hdl.handle.net/1773/10966.

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17

Favier, Marine. "Vers un instrument commercial pour la mesure des rapports isotopiques par Optical Feedback Cavity Enhanced Absorption Spectroscopy." Thesis, Université Grenoble Alpes (ComUE), 2017. http://www.theses.fr/2017GREAY106.

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Les isotopes stables ont permis de faire des découvertes majeures en science, comme, la datation de l'apparition de l'oxygène sur Terre à partir des isotopes du soufre [1] et l'analyse des échanges entre le carbone atmosphérique et celui des autres réservoirs (biosphère, océans) à partir du rapport isotopique 13C/12C [2].Traditionnellement, les rapports isotopiques sont mesurés avec des spectromètres de masse dédiés (IRMS : « isotope ratio mass spectrometer »). Depuis une dizaine d’années, ils sont également remplacés par des spectromètres commerciaux basés sur la spectroscopie infrarouge. Ces

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18

Wang, Yicheng [Verfasser]. "Passive mode-locking of 2-μm solid-state lasers : Towards sub-10 optical cycle pulse generation / Yicheng Wang". Berlin : Freie Universität Berlin, 2017. http://d-nb.info/1147758271/34.

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19

Brown, Andrew Gavin. "Measurement and modelling of combustion in a spark ignition engine." Thesis, Brunel University, 1991. http://bura.brunel.ac.uk/handle/2438/5143.

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A study has been conducted into the causes of cycle by cycle variations in combustion within a spark ignition engine, the best measured engine parameter to use for its characterization, and the effects that: ignition timing, equivalence ratio, fuel type, throttle position and knock, have upon it. A Ricardo E6 single cylinder variable compression ratio research engine was instrumented to allow measurement of: cylinder pressure, temperatures, speed, load, fuel flow and air flow. The engine was also fitted with an optical slice that allowed optical access to the combustion chamber and enabled mea

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20

Talisa, Noah Brodzik. "Laser-Induced Damage and Ablation of Dielectrics with Few-Cycle Laser Pulses." The Ohio State University, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=osu1609243476481238.

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21

Bäcklund, Tomas. "Development and validation of a system for clinical assessment of gait cycle parameter in patients with idiopathic normal pressure hydocephalus." Thesis, Umeå universitet, Institutionen för tillämpad fysik och elektronik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-82891.

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A number of parameters have been identified as characteristic of the walking pattern in patients with INPH. Most of these have been identified through qualitative surveys and manually conducted test batteries. In order to obtain quantitative, standardized and objective measures, which enable studies based on larger patient populations and comparable results, there is a need for a user-friendly system that can measure specific key parameters over time in a reliable manner in everyday clinical work. Step height, width and the variability in the gait cycle are such parameters which are interestin

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22

Jargot, Gaëtan. "High-repetition rate CEP-stable few-cycle OPCPA sources in the short wavelength infrared/mid-infrared." Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLO020.

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Résumé : La génération d’impulsions de quelques cycles optiques stabilisées en CEP dans le moyen infrarouge utilisant la technique d’amplification paramétrique optique à fort taux de répétition est d’un grand intérêt pour diverses études de dynamiques ultra-brèves. Les travaux de cette thèse sont directement inscrits dans ce cadre. Nous décrivons un système émettant des impulsions dont le spectre est centré à 2.1 µm avec une durée de 19.5 fs et une énergie de 31 µJ opérant à 10 kHz avec une stabilité RMS de 0.54 %. Ce système se distingue de l’état de l’art par la mise en œuvre d’une technique

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23

Schröder, Birgit Eva. "Spatial and temporal dynamics of the terrestrial carbon cycle : assimilation of two decades of optical satellite data into a process-based global vegetation model." Phd thesis, Universität Potsdam, 2007. http://opus.kobv.de/ubp/volltexte/2008/1759/.

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This PhD thesis presents the spatio-temporal distribution of terrestrial carbon fluxes for the time period of 1982 to 2002 simulated by a combination of the process-based dynamic global vegetation model LPJ and a 21-year time series of global AVHRR-fPAR data (fPAR – fraction of photosynthetically active radiation). Assimilation of the satellite data into the model allows improved simulations of carbon fluxes on global as well as on regional scales. As it is based on observed data and includes agricultural regions, the model combined with satellite data produces more realistic carbon fluxes of

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24

Wittmann, Emanuel [Verfasser], and Eberhard [Akademischer Betreuer] Riedle. "Taming optical parametric amplification : stable few cycle pulses at 210 to 10000 nm from Ti:Sapphire and Yb-based lasers / Emanuel Wittmann ; Betreuer: Eberhard Riedle." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2019. http://d-nb.info/1206877715/34.

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25

Ouillé, Marie. "Génération d'impulsions laser proches du cycle optique en durée pour l'interaction laser-matière relativiste à haute cadence." Electronic Thesis or Diss., Institut polytechnique de Paris, 2022. http://www.theses.fr/2022IPPAE007.

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Cette thèse expérimentale s’est essentiellement déroulée au Laboratoire d’Optique Appliquée à Palaiseau (France), sur un système laser capable de générer des impulsions proches du cycle optique en durée avec des énergies de plusieurs mJ à une cadence de 1 kHz : la Salle Noire 2. Ce système laser Titane:Sapphire est double CPA avec un filtre non-linéaire entre les deux étages (basé sur la génération d’onde de polarisation croisée ou ‘XPW’) pour améliorer le contraste temporel, suivi d’un étage de post-compression dans une fibre flexible étirée à cœur creux. Grâce à ce système, nous étudions l’i

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26

Gervais, Martin. "Housing and optimal taxation in life-cycle economies." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape7/PQDD_0006/NQ42520.pdf.

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27

Wei, Yu-Feng 1970. "Concurrent design for optimal quality and cycle time." Thesis, Massachusetts Institute of Technology, 2001. http://hdl.handle.net/1721.1/8859.

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Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2001.<br>Includes bibliographical references (p. 113-116).<br>Product and manufacturing system design are the core issues in product development and dominate the profitability of a company. In order to assess and optimize the product and manufacturing system design, an objective evaluation framework is needed. Despite the many existing tools for product and manufacturing system design, there is a missing link between the product design and the production performances under system variability. The goal of th

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28

Kapp, Konrad Phillip. "Optimal cycle dating of large financial time series." Thesis, Nelson Mandela Metropolitan University, 2017. http://hdl.handle.net/10948/17767.

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The study of cycles in the context of economic time series has been active for many decades, if not centuries; however, it was only in recent decades that more formal approaches for identifying cycles have been developed. Litvine and Bismans (2015) proposed a new approach for dating cycles in financial time series, for purposes of optimising buysell strategies. In this approach, cycle dating is presented as an optimisation problem. They also introduced a method for optimising this problem, known as the hierarchical method (using full evaluation 2, or HR-FE2). However, this method may be imprac

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29

Weber, Tom. "Optimal timing of phase resolved cell cycle progression." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät I, 2015. http://dx.doi.org/10.18452/17253.

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Selbstreproduktion ist eines der Kennzeichen aller lebenden Organismen. Der Zellzyklus dient der Selbstreproduktion in einzelligen Organismen. In mehrzelligen Organismen ist der Zellzyklus darüber hinaus für andere lebenswichtige Prozesse, einschließlich Immunreaktionen, unerlässlich. In dieser Arbeit wird eine Methode entwickelt mit der die Dauer der Zellzyklus Phasen bestimmt werden kann. Kenntnis über die Zellzyklusphasendauer ermöglicht vorherzusagen, wie schnell eine Population von proliferierenden Zellen wachsen wird, oder wie viele neue Zellen pro Stunde in einem Gewebe geboren werden.

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30

Ališauskas, Skirmantas. "Kelių optinių ciklų trukmės impulsų parametrinis stiprinimas infraraudonojoje srityje." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2010. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2010~D_20101001_145146-49682.

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Disertacijos darbo tikslas – suformuoti ir parametriškai stiprinti kelių optinių ciklų trukmės impulsus infraraudonojoje srityje Šioje disertacijoje buvo tirtos dvi moduliuotosios fazės („čirpuotų“) impulsų parametrinio stiprinimo sistemos, stiprinančios ypač plataus spektro impulsus 800 nm bei 1,5 μm srityse. Pirmoji sistema skirta tirti galimybę didinti lazerinės spinduliuotės vidutinę galią keliais pluoštais kaupinamame parametriniame stiprintuve; antroji sistema skirta kelių optinių ciklų trukmės stabilios fazės impulsų formavimui 1,5 μm srityje. Disertacijoje aprašomas I tipo parametrinis

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31

Marchesini, Camilo. "Optimal Monetary Policy, Macroprudential Instruments, and the Credit Cycle." Thesis, Uppsala universitet, Nationalekonomiska institutionen, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-388488.

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I study optimal monetary and macroprudential policies in a New Keynesian DSGE framework with leverageconstrainedbanks. In particular, I assess the desirability of alternative operational policy rules when theeconomy is hit by mortgage default shocks and show that their implications for inflation dynamics and policytrade-offs depend on whether the shocks originate in the household sector or in the entrepreneurial sector ofthe economy. Moreover, I find that the strategy of ‘leaning against the wind’ (LAW) of credit growth deliverssystematically poorer stabilization outcomes than standard flexibl

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32

O'Loughlin, R. L. "Optimal design of organic refrigerant reverse cycle absorption air conditioning systems /." Title page, contents and abstract only, 1986. http://web4.library.adelaide.edu.au/theses/09ENS/09enso52.pdf.

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Taylor, Tracy A. "Optimal Control and Its Application to the Life-Cycle Savings Problem." VCU Scholars Compass, 2016. http://scholarscompass.vcu.edu/etd/4288.

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Throughout the course of this thesis, we give an introduction to optimal control theory and its necessary conditions, prove Pontryagin's Maximum Principle, and present the life-cycle saving under uncertain lifetime optimal control problem. We present a very involved sensitivity analysis that determines how a change in the initial wealth, discount factor, or relative risk aversion coefficient may affect the model the terminal depletion of wealth time, optimal consumption path, and optimal accumulation of wealth path. Through simulation of the life-cycle saving under uncertain lifetime model,

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34

Yekoladio, Peni Junior. "Thermodynamic optimization of sustainable energy system : application to the optimal design of heat exchangers for geothermal power systems." Diss., University of Pretoria, 2013. http://hdl.handle.net/2263/31615.

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The present work addresses the thermodynamic optimization of small binary-cycle geothermal power plants. The optimization process and entropy generation minimization analysis were performed to minimize the overall exergy loss of the power plant, and the irreversibilities associated with heat transfer and fluid friction caused by the system components. The effect of the geothermal resource temperature to impact on the cycle power output was studied, and it was found that the maximum cycle power output increases exponentially with the geothermal resource temperature. In addition, an optimal turb

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Ju, Min. "Optimisation de la protection des réseaux optiques de nouvelle génération." Thesis, Avignon, 2018. http://www.theses.fr/2018AVIG0226/document.

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La tolérance aux pannes est une propriété très importante des réseaux optiques de nouvelle génération. Cette thèse aborde la conception des mécanismes de protection contre des pannes liées à la défaillance d’une fibre optique ou à une catastrophe naturelle. Deux systèmes de protection classiques, à savoir la protection par des cycles préconfigurés(p-cycles) et la protection du chemin de secours, sont étudiés pour atteindre une efficacité de protection élevée, tout en considérant le coût de l’équipement optique,la consommation d’énergie et l’utilisation de la ressource spectrale. Ces problèmes

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Bodnar, Nathan. "Phase-locking Stability of a Quasi-single-cycle Pulse." Master's thesis, University of Central Florida, 2013. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/5606.

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There is increasing interest in the generation of very short laser pulses, even down to attosecond (10-18 s) durations. Laser systems with femtosecond pulse durations are needed for these applications. For many of these applications, positioning of the maximum electric field within the pulse envelope can affect the outcome. The peak of the electric field relative to the peak of the pulse is called the Carrier Envelope Phase (CEP). Controlling the position of the electric field becomes more important when pulse duration approaches single-cycle. This thesis focuses on the stabilization of a qua

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El-khawas, Ihab N. "The optimal design of buildings : a life-cycle approach to energy efficiency /." The Ohio State University, 1997. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487948158626783.

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38

Zhang, Xiaoying. "Contrast improvement of few-cycle pulses." Thesis, Umeå universitet, Institutionen för fysik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-165565.

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The intense few-cycle laser pulses play an important role in the investigations of laser-plasma interaction. However, one of the biggest challenges in their generation is the reduction of temporal intensity contrast by introducing undesired pre-pulses and a long pedestal. Two techniques were investigated in this work to improve the contrast. First, the crossed-polarized wave (XPW) generation was optimized to get clean pulse. The conditions for XPW were optimized including crystal thickness and maximal background pressure in the vacuum cell. Second, the method of elliptical polarization rotatio

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Parks, Geoffrey Thomas. "Optimal in-core nuclear fuel cycles under integral constraint." Thesis, University of Cambridge, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.304442.

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SALMAN, RAMIZ. "Identification of common economic cycles using optimal multivariate filters." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2022. http://hdl.handle.net/10281/394321.

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This thesis includes two essays that are focused on developing multivariate filter approaches to be used for extracting common cyclical components where the common components can be used as an estimator of a business cycle. The first chapter aims to develop an optimal multivariate filter in order to extract common cyclical components of macroeconomic indicators. The filter allows macroeconomic series to be modeled as a phase shifted version of a coinciding business cycle (BC) while keeping other time series components such as the stochastic trend and idiosyncratic shocks intact (i.e. they are

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Jacquet, Maxime J. "Negative frequency at the horizon : scattering of light at a refractive index front." Thesis, University of St Andrews, 2017. http://hdl.handle.net/10023/11780.

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This thesis considers the problem of calculating and observing the mixing of modes of positive and negative frequency in inhomogeneous, dispersive media. Scattering of vacuum modes of the electromagnetic field at a moving interface in the refractive index of a dielectric medium is discussed. Kinematics arguments are used to demonstrate that this interface may, in a regime of linear dispersion, act as the analogue of the event horizon of a black hole to modes of the field. Furthermore, a study of the dispersion of the dielectric shows that five distinct configurations of modes of the inhomogene

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Gong, Liying. "Optimal spatial sampling of infrastructure condition a life-cycle-based approach under uncertainty /." Columbus, Ohio : Ohio State University, 2006. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1155273960.

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Shin, Hyun. "Life-Cycle Cost-Based Optimal Seismic Design of Structures with Energy Dissipation Devices." Diss., Virginia Tech, 2010. http://hdl.handle.net/10919/40399.

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Seismic designs of building structures are currently made based on the design criterion of life-safety and this requires that the structures do not collapse to compromise safety of people in the structure, but they can be designed to experience some damage. However, this design approach has allowed large economic losses primarily due to the damage to the nonstructural components at relatively moderate levels of seismic intensities. This led to a new thinking about design approach called performance-based design approach that satisfies the life-safety objective at the same time, reduces the eco

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Kox, Stephan. "Remote sensing of the diurnal cycle of optically thin cirrus clouds." Diss., lmu, 2012. http://nbn-resolving.de/urn:nbn:de:bvb:19-151170.

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Hemmer, Michaël. "Few-cycle pulses amplification for attosecond science applications modeling and experiments." Doctoral diss., University of Central Florida, 2011. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/4920.

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The emergence of mode-locked oscillators providing pulses with durations as short as a few electric-field cycles in the near infra-red has paved the way toward electric-field sensitive physics experiments. In addition, the control of the relative phase between the carrier and the pulse envelope, developed in the early 2000's and rewarded by a Nobel price in 2005, now provides unprecedented control over the pulse behaviour. The amplification of such pulses to the millijoule level has been an on-going task in a few world-class laboratories and has triggered the dawn of attoscience, the science o

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Enes, Aaron R. "Shared control of hydraulic manipulators to decrease cycle time." Diss., Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/37251.

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This thesis presents a technique termed Blended Shared Control, whereby a human operator's commands are merged with the commands of an electronic agent in real time to control a manipulator. A four degree-of-freedom hydraulic excavator is used as an application example, and two types of models are presented: a fully dynamic model incorporating the actuator and linkage systems suitable for high-fidelity user studies, and a reduced-order velocity-constrained kinematic model amenable for real-time optimization. Intended operator tasks are estimated with a recursive algorithm; the task is optimize

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Duineveld, Sijmen [Verfasser], and Burkhard [Akademischer Betreuer] Heer. "Solving Life Cycle Models, Optimal Age-Dependent Unemployment Insurance, and Adaptive Beliefs in a Real Business Cycle Model / Sijmen Duineveld ; Betreuer: Burkhard Heer." Augsburg : Universität Augsburg, 2019. http://d-nb.info/1190564904/34.

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Zeng, Shuo. "Understanding diatomic molecular dynamics triggered by a few-cycle pulse." Diss., Kansas State University, 2015. http://hdl.handle.net/2097/19165.

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Doctor of Philosophy<br>Physics<br>Brett D. Esry<br>In strong field physics, complex atomic and molecular motions can be triggered and steered by an ultrashort strong field. With a given pulse as an carrier-envelope form, E(t) = E₀(t) cos(ωt + φ), we established our photon-phase formalism to decompose the solution of a time-dependent Schrödinger equation in terms of photons. This formalism is further implemented into a general analysis scheme that allows extract photon information direct from the numerical solution. The φ-dependence of any observables then can be understood universally as an

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Hyyti, Janne Juhani. "Ultrafast Nonlinear Nano-Optics via Collinear Characterization of Few-Cycle Pulses." Doctoral thesis, Humboldt-Universität zu Berlin, 2018. http://dx.doi.org/10.18452/19410.

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Die Methode „interferometric frequency-resolved optical gating“ (iFROG) zur Charakterisierung ultrakurzer Laserimpulse wurde erweitert. Als optische Nichtlinearität werden sowohl die Erzeugung der 2. als auch der 3. Harmonischen (THG) separat verwendet. Eine iFROG-Messung stellt ein inverses Problem dar, bei dem die Amplitude und Phase des elektrischen Feldes des Laserimpulses nur durch einen iterativen Algorithmus rekonstruiert werden kann. In dieser Arbeit wird ein mathematischer Formalismus entwickelt und mit einem evolutionären Optimierungsalgorithmus kombiniert, um einen neuartigen Impuls

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de, Medeiros Rocha Caroline Thennecy. "Optimization of p-cycle protection schemes in optical networks." Thèse, 2009. http://hdl.handle.net/1866/3671.

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La survie des réseaux est un domaine d'étude technique très intéressant ainsi qu'une préoccupation critique dans la conception des réseaux. Compte tenu du fait que de plus en plus de données sont transportées à travers des réseaux de communication, une simple panne peut interrompre des millions d'utilisateurs et engendrer des millions de dollars de pertes de revenu. Les techniques de protection des réseaux consistent à fournir une capacité supplémentaire dans un réseau et à réacheminer les flux automatiquement autour de la panne en utilisant cette disponibilité de capacité. Cette thèse porte

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