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Dissertations / Theses on the topic 'Hollow-core fibers'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

Forsberg, Frans. "Gas Analysis using Hollow-Core Optical Fibers." Thesis, KTH, Tillämpad fysik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-231924.

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2

Amsanpally, Abhilash. "Linear properties of inhibited coupling hollow-core photonic crystal fibers." Thesis, Limoges, 2017. http://www.theses.fr/2017LIMO0028/document.

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Cette thèse a porté sur les principes de guidage, les propriétés linéaires et les outils de conception autour des fibres à cristal photonique à coeur creux (HC-PCF) à couplage inhibé (IC). Le guidage IC a été démontré comme une manifestation photonique de Q-BiC (état quasi lié dans un continuum) en étudiant des profils asymétriques et dépendants en polarisation dit Fano présentant une bande passante spectrale de 30 GHz. En utilisant le concept de IC, nous reportons la caractérisation linéaire de fibres IC HC-PCF supérieures à l’état de l’art. Par une optimisation de la forme du coeur, une fibr

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3

Knabe, Kevin. "Using saturated absorption spectroscopy on acetylene-filled hollow-core fibers for absolute frequency measurements." Diss., Manhattan, Kan. : Kansas State University, 2010. http://hdl.handle.net/2097/4126.

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4

Harner, Mary. "Characterization of the mid-infrared wavelength dependent loss in hollow core photonic crystal fibers." Thesis, Kansas State University, 2015. http://hdl.handle.net/2097/18928.

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Master of Science<br>Department of Physics<br>Brian Washburn<br>This research sought to characterize the length dependent loss of hollow core photonic crystal fibers (HC-PCF) in the mid-infrared. These fibers are used in gas-filled fiber lasers that operate in the mid-infrared range. A black body source which provided a broad mid-infrared spectrum was coupled into a HC-PCF and a fiber cut-back method was implemented to make the length dependent loss measurement. A monochromator was used to observe narrow bands of the broad spectrum provided by the black body source and the loss as a function

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5

Wu, Chunbai 1980. "Raman optical frequency comb generation in hydrogen-filled hollow-core fiber." Thesis, University of Oregon, 2010. http://hdl.handle.net/1794/11052.

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xiv, 138 p. : ill. (some col.)<br>In this dissertation, we demonstrate the generation of optical Raman frequency combs by a single laser pump pulse traveling in hydrogen-filled hollow-core optical fibers. This comb generation process is a cascaded stimulated Raman scattering effect, where higher-order sidebands are produced by lower orders scattered from hydrogen molecules. We observe more than 4 vibrational and 20 rotational Raman sidebands in the comb. They span more than three octaves in optical wavelength, largely thanks to the broadband transmission property of the fiber. We found that

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6

Wang, Chenchen. "Optical frequency references in acetylene-filled hollow-core optical fiber and photonic microcells." Diss., Kansas State University, 2015. http://hdl.handle.net/2097/18831.

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Doctor of Philosophy<br>Department of Physics<br>Kristan L. Corwin<br>Optical frequency references have been widely used in applications such as navigation, remote sensing, and telecommunication industry. For stable frequency references in the near-infrared (NIR), lasers can be locked to narrow absorption features in gases such as acetylene. Currently, most Near NIR references are realized in free space setups. In this thesis, a low-loss hollow-core optical fiber with a diameter of sub millimeters is integrated into the reference setup to provide long interaction lengths between the filling ga

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7

Belli, Federico [Verfasser], and Philip St J. [Gutachter] Russell. "Ultrafast Raman scattering in gas-filled hollow-core fibers / Federico Belli ; Gutachter: Philip St. J. Russell." Erlangen : Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 2017. http://d-nb.info/1132817145/34.

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8

Rajala, Jonathan Watsell. "ELECTROSPINNING FABRICATION OF CERAMIC FIBERS FOR TRANSPARENT CONDUCTING AND HOLLOW TUBE MEMBRANE APPLICATIONS." University of Akron / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=akron1480909959851349.

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9

Mak, Ka Fai [Verfasser], and Philip [Akademischer Betreuer] Russell. "Nonlinear optical effects in gas-filled hollow-core photonic-crystal fibers / Ka Fai Mak. Gutachter: Philip Russell." Erlangen : Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 2015. http://d-nb.info/1075479037/34.

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10

Abdolvand, Amir [Verfasser], and Philip St J. [Akademischer Betreuer] Russell. "Coherent Raman Interaction in Gas-Filled Hollow-Core Photonic Crystal Fibers / Amir Abdolvand. Betreuer: Philip St.J. Russell." Erlangen : Universitätsbibliothek der Universität Erlangen-Nürnberg, 2011. http://d-nb.info/1016377207/34.

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11

Epple, Georg [Verfasser], and Philip St J. [Gutachter] Russell. "Spectroscopy of Rydberg Atoms in Hollow-Core Photonic Crystal Fibers / Georg Epple ; Gutachter: Philip St. J. Russell." Erlangen : Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 2018. http://d-nb.info/1153203324/34.

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12

Elser, Wenjia [Verfasser], Christoph [Akademischer Betreuer] Marquardt, and Nicolas [Gutachter] Joly. "Application of Hollow Core Photonic Crystal Fibers in Quantum Optics / Wenjia Elser ; Gutachter: Nicolas Joly ; Betreuer: Christoph Marquardt." Erlangen : Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 2021. http://d-nb.info/1226428207/34.

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13

Ziemieńczuk, Marta [Verfasser], and Philip [Akademischer Betreuer] Russell. "Coherent Gas-Laser Interactions via Stimulated Raman Scattering in Hollow-Core Photonic Crystal Fibers / Marta Ziemieńczuk. Betreuer: Philip Russell." Erlangen : Universitätsbibliothek der Universität Erlangen-Nürnberg, 2012. http://d-nb.info/1023597489/34.

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14

Schmidt, Oliver [Verfasser], Philip St J. [Akademischer Betreuer] Russell, and Ben [Akademischer Betreuer] Fabry. "Dynamics of Optically Trapped Microparticles in Hollow-Core Photonic Crystal Fibers / Oliver Schmidt. Gutachter: Philip St. J. Russell ; Ben Fabry." Erlangen : Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 2014. http://d-nb.info/1075477735/34.

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15

Sollapur, Rudrakant [Verfasser], Christian [Gutachter] Spielmann, Stefan [Gutachter] Nolte, and Nicolas [Gutachter] Joly. "Nonlinear laser matter interaction in gas-filled antiresonant hollow-core fibers / Rudrakant Sollapur ; Gutachter: Christian Spielmann, Stefan Nolte, Nicolas Joly." Jena : Friedrich-Schiller-Universität Jena, 2019. http://d-nb.info/1205884904/34.

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16

Cuenca, Asensio Estefanía. "ON SHEAR BEHAVIOR OF STRUCTURAL ELEMENTS MADE OF STEEL FIBER REINFORCED CONCRETE." Doctoral thesis, Universitat Politècnica de València, 2013. http://hdl.handle.net/10251/18326.

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Cuenca Asensio, E. (2012). ON SHEAR BEHAVIOR OF STRUCTURAL ELEMENTS MADE OF STEEL FIBER REINFORCED CONCRETE [Tesis doctoral no publicada]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/18326<br>Palancia

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17

Lucena, Júlio César Tavares de. "Concreto reforçado com fibras de polipropileno: estudo de caso para aplicação em painel alveolar de parede fina." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/18/18134/tde-30032017-104705/.

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Essa pesquisa apresenta um estudo da composição de concreto reforçado com fibras de polipropileno e objetiva avaliar seu comportamento estrutural em um tipo de painel alveolar de parede fina. A adição de alto teor de fibras de polipropileno ao concreto modifica algumas de suas propriedades mecânicas, conferindo ao compósito maior resistência à tração, resistência à flexão, resistência ao impacto e tenacidade. Inicialmente foram realizados ensaios de caracterização do compósito, sendo eles: consistência, resistência à compressão axial, módulo de elasticidade, resistência à tração por compressão

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18

Zeltner, Richard [Verfasser], Philip St J. [Akademischer Betreuer] Russell, and Philip St J. [Gutachter] Russell. "Optical Trapping in Liquid-Filled Hollow-Core Photonic Crystal Fibers / Richard Zeltner ; Gutachter: Philip St J. Russell ; Betreuer: Philip St. J. Russell." Erlangen : Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 2018. http://d-nb.info/1168474388/34.

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19

Günendi, Mehmet Can [Verfasser], Philip St J. [Akademischer Betreuer] Russell, Philip St J. [Gutachter] Russell, and Markus [Gutachter] Schmidt. "Numerical Modelling of Hollow-Core Photonic Crystal Fibers / Mehmet Can Günendi ; Gutachter: Philip St. J. Russell, Markus Schmidt ; Betreuer: Philip St. J. Russell." Erlangen : Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 2018. http://d-nb.info/1169913210/34.

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20

Benoit, Aurélien. "Sources laser fibrées hybrides de haute puissance : Amplification et conversion de fréquences." Thesis, Limoges, 2015. http://www.theses.fr/2015LIMO0024/document.

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Les lasers à fibre de haute puissance constituent depuis une dizaine d’année un outil pertinent pour un nombre croissant d’applications. Dans le cadre d’un contrat CIFRE entre la société Eolite Systems et le laboratoire Xlim (UMR 7252 du CNRS et de l’Université de Limoges), mon projet de thèse a consisté à développer les briques technologiques de futures sources lasers<br>High-power fiber lasers adress an increasing number of applications since ten years. In the frame of a CIFRE contract between the company Eolite Systems and Xlim (joint laboratory between CNRS and the University of Limoges),

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21

Garbos, Martin Konrad [Verfasser], and Philip St J. [Akademischer Betreuer] Russell. "Laser-propulsion of microparticles in liquid-filled hollow-core photonic-crystal fibers : going against the flow = Laser-Antrieb von Mikropartikeln entlang des Hohlkerns flüssigkeitsgefüllter photonischer Kristallfasern / Martin Konrad Garbos. Betreuer: Philip St.J. Russell." Erlangen : Universitätsbibliothek der Universität Erlangen-Nürnberg, 2011. http://d-nb.info/1015474985/34.

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22

Yu, Fei. "Hollow core negative curvature fibres." Thesis, University of Bath, 2013. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.648936.

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Hollow core fibre (HCF) is a type of novel optical fibre which has lower refractive index in the hollow core than in the cladding. Total internal reflection (TIR) cannot explain the confinement of light to the core of a HCF. According to the confinement mechanism, the HCFs can be generally divided into hollow core photonic bandgap fibres and hollow core leaky mode fibres depending on their optical properties of the cladding structure. Hollow core negative curvature fibre (HC-NCF) is a kind of hollow core leaky mode fibre, which is defined by the negative curvature of the core boundary. This th

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23

Xu, Mengrong. "Advances in hollow core fibres and application to mid-infrared fibre gas lasers." Thesis, University of Bath, 2018. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.760959.

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Anti-resonant hollow core fibre is a new kind of optical fibre waveguide in which light is trapped in a hollow core surrounded by the capillary formed microstructured cladding. This fibre exhibits high damage threshold, low dispersion and ultra-low nonlinearity with relatively low loss of a few tens of dB/km. Its intrinsic feature of multimode delivery limits the applications with high requirements of single mode transmission. In my thesis, I demonstrate how the design of hollow core fibre can be improved with single mode guidance. S2 imaging measurement was used to analyse the mode content of

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24

Kergoustin, David. "Sources optiques infrarouges impulsionnelles ultra-courtes et spectralement ultra-larges générées par effet Raman dans les fibres creuses." Thesis, Limoges, 2019. http://www.theses.fr/2019LIMO0097.

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Les fibres à coeur creux à gaine à cristaux photoniques (HC-PCF) remplies de gaz à haute pression s’avèrent être un outil efficace pour générer, par effet Raman stimulé (SRS), de larges peignes de fréquences. Ces derniers se montrent cohérents grâce au régime fortement transitoire de la SRS permettant l’amplification, depuis le niveau quantique jusqu’au niveau macroscopique, d’un unique mode spatio-temporel. Il en résulte la génération d’ondes Stokes avec une phase bien déterminée. Ces travaux de thèse ont notamment pour but d’étudier comment cette cohérence survit dans le temps, entre deux im

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25

Vasko, Kostiantyn. "Outil numérique (1+2D)/3D pour modéliser la diffusion de surface de la lumière d'une fibre creuse à couplage inhibé." Electronic Thesis or Diss., Limoges, 2023. http://www.theses.fr/2023LIMO0105.

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Ce travail présente le développement d’un outil numérique basé sur la méthode des éléments finis pour étudier et optimiser les performances des fibres creuses à cristal photonique (HCPCF). Divers mécanismes de perte dans ces fibres ont alors pu être analysés. En premier lieu, par une compréhension fine de l’influence des paramètres géométriques sur les pertes et par une approche basée sur une décomposition de Fourier azimutale, plusieurs structures innovantes de fibres creuses ont été proposées permettant d’aller au-delà de l’état de l’art actuel. En particulier, une fibre creuse à maille hybr

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26

Loranca, Cruz Luisa Fernanda. "Towards atomic crystallization in a hollow-core fiber." Electronic Thesis or Diss., Bordeaux, 2025. http://www.theses.fr/2025BORD0014.

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Les atomes froids sont des systèmes quantiques versatiles qui permettent l’étude de nombreux phénomènes quantiques grâce à des outils précis et un contrôle avec un haut degré de précision. De nombreuses expériences exploitent ces systèmes pour explorer des phénomènes d’organisation spontanée : des systèmes initialement désordonnés subissant une transition de phase vers un état ordonné sous l’effet des interactions entre leurs constituants. La plupart des études dans ce domaine utilisent des atomes confinés dans des cavités. Cependant, ces cavités imposent des restrictions sur les modes de lumi

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27

Chu, Yiwen. "Loading rubidium atoms into a hollow core fiber." Thesis, Massachusetts Institute of Technology, 2007. http://hdl.handle.net/1721.1/40904.

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Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Physics, 2007.<br>Includes bibliographical references (p. 71-73).<br>We demonstrate a procedure for cooling, trapping, and transferring rubidium atoms into a hollow core photonic band gap fiber. The atoms are first collected in a magneto-optical trap (MOT) and then cooled using polarization gradient cooling. Magnetic traps are then used to confine and transfer the atoms toward the face of the fiber. An optical dipole trap formed using laser light propagating through the fiber guide the atoms and confine them away from the fiber wal

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28

Urich, Artur. "Silica hollow core fibres for mid-infrared medical applications." Thesis, Heriot-Watt University, 2013. http://hdl.handle.net/10399/2946.

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In this thesis two types of silica hollow core microstructured fibres - the Negative Curvature Fibre and the Photonic Bandgap Fibre - are presented as a novel solution for the flexible delivery of Er:YAG laser radiation. The Negative Curvature Fibre and Photonic Bandgap Fibre had attenuations of 0.06 dB/m and 1.1 dB/m at 2.94 μm wavelength, respectively. This is an important wavelength regime for medical applications, specifically surgery, due to the existence of a strong absorption peak for water around 3 μm. The guidance of high energy pulses of the order of 195 mJ and 14.4 mJ respectively i

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29

Sandoghchi, Seyed Reza. "Characterisation of imperfections in hollow core photonic bandgap fibres." Thesis, University of Southampton, 2016. https://eprints.soton.ac.uk/419065/.

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Over the past decades, the performance of standard single-mode fibre (SSMF) has improved to the point that limited scope now exists for significant further reductions in loss and nonlinearity, which determine the fibre’s transmission capacity. Given the current 40% per annum growth in data traffic, and the fact that state-of-the-art data transmission experiments are operating close to the fundamental information-carrying limit of SSMF, there is strong interest in developing radically new fibres capable of much higher data carrying capacity. Recently, a potentially disruptive new type of fibre,

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30

Cordier, Martin. "Photon-pair generation in hollow-core photonic-crystal fiber." Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLT024/document.

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Les sources de paires de photons sont un composant essentiel des technologies émergentes en information quantique. De nombreux travaux ont permis des avancées importantes utilisant des processus non linéaires d'ordre 2 dans les cristaux et les guides d'ondes, et d'ordre 3 dans les fibres. Les limitations viennent dans le premier cas, des pertes et en particulier des pertes de couplage avec les fibres optiques et dans le second cas, du bruit dû à l'effet Raman dont le spectre est très large dans les fibres de silice. Ce projet propose une nouvelle architecture basée sur des fibres à cristal pho

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31

Cordier, Martin. "Photon-pair generation in hollow-core photonic-crystal fiber." Electronic Thesis or Diss., Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLT024.

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Les sources de paires de photons sont un composant essentiel des technologies émergentes en information quantique. De nombreux travaux ont permis des avancées importantes utilisant des processus non linéaires d'ordre 2 dans les cristaux et les guides d'ondes, et d'ordre 3 dans les fibres. Les limitations viennent dans le premier cas, des pertes et en particulier des pertes de couplage avec les fibres optiques et dans le second cas, du bruit dû à l'effet Raman dont le spectre est très large dans les fibres de silice. Ce projet propose une nouvelle architecture basée sur des fibres à cristal pho

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32

Bateman, Samuel. "Hollow core fibre-based gas discharge laser systems and deuterium loading of photonic crystal fibres." Thesis, University of Bath, 2015. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.648951.

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Research towards the development of a gas-discharge fibre laser using noble gases, with target emission wavelengths in the mid-IR. Additional and separate work on gas treatment methods for managing the formation of photo-induced defects in silica glass.

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33

Tipparaju, Venkata Satya Sai Sarma. "An active core fiber optic gas sensor using a photonic crystal hollow core fiber as a transducer." Master's thesis, Mississippi State : Mississippi State University, 2007. http://sun.library.msstate.edu/ETD-db/theses/available/etd-06262007-164352/.

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34

Wong, Nicholas Heng Loong. "Characterisation of hollow-core photonic bandgap fibres and other multimode fibres for optical communications." Thesis, University of Southampton, 2017. https://eprints.soton.ac.uk/419655/.

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Progress in multimode fibre technology has opened diverse opportunities in science and technology, one of which is pushing data capacities beyond the fundamental limits of conventional single-mode fibre, so as to avert network gridlock precipitated by exponentially growing global traffic demands. Hollow-core photonic bandgap fibres (HC-PBGFs), where light propagates in air rather than glass, have been considered as a potential candidate for high-capacity telecommunications applications, while offering superior performance over solid-core fibres in terms of low loss, low latency, and ultralow n

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35

Amezcua-Correa, Rodrigo. "Development of hollow-core photonic bandgap fibres free of surface modes." Thesis, University of Southampton, 2009. https://eprints.soton.ac.uk/70915/.

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Conventional optical fibres can only guide light in a high refractive index core by total internal reflection. By using total internal reflections it is not possible to guide light in an air core. Light guidance in air is of great interest for various technological and scientific applications and has only recently been possible with the advent of photonic band gap fibres. However, the transmission performance of silica/air hollow-core photonic bandgap fibres has until now been affected by the existence of surface modes. These surface modes couple with the air-guided mode in specific spectral r

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36

Paine, Kevin Andrew. "Steel fibre reinforced concrete for prestressed hollow core slabs." Thesis, University of Nottingham, 1998. http://eprints.nottingham.ac.uk/11095/.

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An investigation of prestressed concrete containing steel fibres as secondary reinforcement to improve performance in shear, flexure and bond is reported. Emphasis is placed on the use of steel fibres in prestresssed extruded hollow core slabs, since these common precast elements have intrinsic difficulty in incorporating traditional secondary reinforcement due to their unique shape and manufacturing method. Two separate studies were carried out. The first study involved laboratory investigations into the bond between fibre reinforced concrete (FRC) and the prestressing strand, and the shear b

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37

Abokhamis, Mousavi Seyed Mohammad. "Exploring optical nonlinearity in gas-filled hollow core fibre." Thesis, University of Southampton, 2018. https://eprints.soton.ac.uk/428037/.

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The growing need for novel light sources in variety applications increases the demand for laser sources operating in many different range of spectrum. Despite the success in development of mid-infrared (mid-IR) lasers, which are essential in many applications such as: environmental science, bio-science and physics, there are still lack of reliable lasers in this range with existing fibre laser technology compatibility. Meanwhile the nonlinearity in gases has been explored extensively from the very beginning of nonlinear optics, however, new developments in pulsed lasers and fibre design provid

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38

Love, Adrian. "Hollow core optical fibre based gas discharge laser systems." Thesis, University of Bath, 2018. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.760983.

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The humble electrically pumped gas laser has undergone little development in its fifty year life span due to the lack of an effective method to confine light within a hollow waveguide of any appreciable length in which an electrical discharge could be contained. New technologies in the field of anti-resonant guiding hollow core fibres present an opportunity to re-invent the gas laser. A recent breakthrough in the field demonstrated that DC pumped glow discharges of a helium and xenon gas mixture could not only be sustained in such a fibre, but also exhibited signs of gain on a number of mid-IR

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39

Welch, Matthew G. "Compressing and propagating solitons in hollow core photonic crystal fibre." Thesis, University of Bath, 2010. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.520840.

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The development of photonic crystal fibre from conventional optical fibre follows a trend in the development of materials, to create composites and structured materials on smaller and smaller scales. In fact the great success of photonic crystal fibre is largely due to the ability to structure it on scales comparable to the wavelength of light. It is this micron size structure that allows the creation of an (out of plane) optical bandgap in silica and allows hollow core fibre to guide light in an air core freeing the guided mode from the properties of bulk silica. This thesis focuses on the pr

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40

Wu, Shun. "Direct fiber laser frequency comb stabilization via single tooth saturated absorption spectroscopy in hollow-core fiber." Diss., Kansas State University, 2014. http://hdl.handle.net/2097/18373.

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Doctor of Philosophy<br>Department of Physics<br>Kristan L. Corwin<br>Portable frequency references are crucial for many practical on-site applications, for example, the Global Position System (GPS) navigation, optical communications, and remote sensing. Fiber laser optical frequency combs are a strong candidate for portable reference systems. However, the conventional way of locking the comb repetition rate, frep, to an RF reference leads to large multiplied RF instabilities in the optical frequency domain. By stabilizing a comb directly to an optical reference, the comb stability can potenti

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41

Numkam, Fokoua Eric Rodrigue. "Ultralow loss and wide bandwidth hollow-core photonic bandgap fibres for telecom applications." Thesis, University of Southampton, 2015. https://eprints.soton.ac.uk/383000/.

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Light guidance in air has significant potential in diverse photonics applications, one of hich is optical communications where it may be key to achieving lower attenuation and optical nonlinearity than in conventional silica fibres. This thesis presents research conducted as part of the EU FP7 project MODEGAP, and is concerned with the design of hollow-core photonic bandgap fibres (HC-PBGFs) with low loss and wide bandwidths suitable for high capacity data transmission. In these fibres, loss is dominated by scattering from surface roughness and is subject to the design of the fibre cross-secti

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42

O'Neill, Kevin. "FEASIBILITY STUDY OF LIGHTWEIGHT HIGH-STRENGTH HOLLOW CORE BALSA-FRP COMPOSITE BEAMS UNDER FLEXURE." Master's thesis, University of Central Florida, 2010. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/3109.

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The United States of AmericaÂ s Military, more specifically the Army, has since the late 1990Â s had a vested interest in the development of super-lightweight, portable, short-span composite bridge and decking components to replace aging heavy metal-alloy machine driven modular systems. The following study looks at the feasibility of using balsa wood as the structural core material in fiber reinforced polymer (FRP) wrapped hollow-core composites in short-span bridge applications. The balsa provides shear resistance and the FRP the flexural resistance, resulting in extremely high strength-to-we

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43

Couny, Francois. "Photonic solutions towards optical waveform synthesis." Thesis, University of Bath, 2008. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.478946.

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This thesis presents the development of photonic tools towards the realisation of an optical intensity waveform synthesiser and of an attosecond pulse synthesiser based on the generation and Fourier synthesis of a continuous-wave coherent spectral comb spanning more than 3 octaves (UV to mid-IR) by use of a gas-filled hollow core photonic crystal fibre (HC-PCF).

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44

Jones, Andrew Michael. "Realizing a mid-infrared optically pumped molecular gas laser inside hollow-core photonic crystal fiber." Diss., Kansas State University, 2012. http://hdl.handle.net/2097/13775.

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Doctor of Philosophy<br>Department of Physics<br>Kristan L. Corwin<br>This research has focused on the development, demonstration, and characterization of a new type of laser based on optically-pumped gases contained within hollow optical fibers. These novel lasers are appealing for a variety of applications including frequency metrology in the mid-infrared, free-space communications and imaging, and defense applications. Furthermore, because of the hollow core fibers used, this technology may provide the means to surpass the theoretical limits of output power available from high power solid-

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Dadashzadeh, Neda. "Improved performance of an optically pumped mid-infrared acetylene-filled hollow-core fiber laser." Diss., Kansas State University, 2017. http://hdl.handle.net/2097/36259.

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Doctor of Philosophy<br>Department of Physics<br>Kristan L. Corwin<br>The focus of this research is improving the pulse output energy of a mid-IR pulsed acetylene-filled Hollow-core Optical Fiber Gas LASer (HOFGLAS) system. Pump pulses and acetylene molecules interact with each other inside hollow-core photonic crystal fiber that effectively confines light and allows for strong gain. This results in lasing at 3.11 μm and 3.17 μm lines based on population inversion of acetylene molecules, which are optically pumped at rotational-vibrational overtones near 1.5 μm using 1 ns pulse duration from a

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Antonopoulos, Grigorios. "Super-enhanced stimulated Raman scattering and particle guidance in hollow-core photonic crystal fibres." Thesis, University of Bath, 2006. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.425387.

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Bradley, Thomas David. "Atomic vapours filled hollow core photonic crystal fibre for magneto-optical spectroscopy." Thesis, University of Bath, 2014. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.616871.

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This thesis describes developments in atomic vapour loading in hollow core photonic crystal fibre (HC-PCF) for fabrication of atomic vapour loaded photonic microcells (PMC). These developments have been targeted at addressing some of the issues associated with loading atomic vapours in confined waveguiding geometries such as increased dephasing and physio-chemical wall absorptions. Atomic vapour loaded HC-PCF and PMC’s have applications in laser metrology, coherent optics and magneto optical spectroscopy. State of the art HC-PCF have been fabricated for loading with atomic vapour including bot

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Jammi, Sindhu. "Towards quantum optics experiments with trapped atoms in a hollow-core fibre." Thesis, University of Nottingham, 2018. http://eprints.nottingham.ac.uk/49896/.

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A proposal for performing quantum memory schemes with a light matter interface in Hollow Core Fibres is introduced. Various technical aspects of implementing such a scheme in the proposed interface are outlined and the different elements required to realize this scheme are discussed, primarily the detection of atomic levels and the extension of the scheme to magnetically trappable levels. A new method to dispersively measure populations and population difference of alkali atoms prepared in their two clock states is introduced, for future use in the Hollow Core Fibre interface. The method essen

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Tani, Francesco [Verfasser], and Philip St J. [Akademischer Betreuer] Russell. "Extreme nonlinear optics in gas-filled hollow-core fibres / Francesco Tani. Gutachter: Philip St. J. Russell." Erlangen : Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 2015. http://d-nb.info/1075837154/34.

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Thang, Nguyen [Verfasser], and Philip [Akademischer Betreuer] Russell. "Stimulated Raman Scattering in Gas Filled Hollow-Core Photonic Crystal Fibres / Nguyen Thang. Gutachter: Philip Russell." Erlangen : Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 2013. http://d-nb.info/1065379153/34.

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