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Dissertations / Theses on the topic 'Liquid resonators'

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1

SCAIOLA, DAVIDE. "Microbridge resonators with embedded nanochannels for attogram resolution in liquid." Doctoral thesis, Politecnico di Torino, 2019. http://hdl.handle.net/11583/2743233.

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2

Powell, David Anthony, and davidanthonypowell@gmail com. "Modelling of Layered Surface AcousticWave Resonators for Liquid Media Sensing Applications." RMIT University. Electrical and Computer Engineering, 2006. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20070122.164018.

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In this thesis a model is developed to characterise the behaviour of layered SAW 2- port resonator sensors operating in liquid media. In the critical review of literature, it is found that methods based on the periodic Green's function combined with the COM model are best suited to this task. However, an important deficiency of this approach is the lack of a good model for electrodes buried within layered media. This deficiency is resolved in this thesis by the formulation of a periodic matrix eigen-operator, using a phase-shifted Fourier series representation. This model is then u
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3

Pottigari, Sai Sumanth Kwon Jae Wan. "Low loss film bulk acoustic resonator in liquid environments." Diss., Columbia, Mo. : University of Missouri-Columbia, 2008. http://hdl.handle.net/10355/6083.

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The entire thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical public abstract appears in the public.pdf file. Title from PDF of title page (University of Missouri--Columbia, viewed on October 7, 2009) Thesis advisor: Dr. Jae Wan Kwon, Includes bibliographical references.
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4

Francis, Laurent A. "Thin film acoustic waveguides and resonators for gravimetric sensing applications in liquid." Université catholique de Louvain, 2006. http://edoc.bib.ucl.ac.be:81/ETD-db/collection/available/BelnUcetd-01272006-113333/.

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The fields of health care and environment control have an increasing demand for sensors able to detect low concentrations of specific molecules in gaseous or liquid samples. The recent introduction of microfabricated devices in these fields gave rise to sensors with attractive properties. A cutting edge technology is based on guided acoustic waves, which are perturbed by events occurring at the nanometer scale. A first part of the thesis investigates the Love mode waveguide, a versatile structure in which a thin film is guiding the acoustic wave generated in a piezoelectric substrate. A system
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5

Beardslee, Luke Armitage. "Liquid-phase operation of mems resonators for biochemical sensing in point of care and embedded applications." Diss., Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/44924.

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The purpose of this work is the development of MEMS-based resonant sensors for liquid-phase biochemical sensing applications. Specifically, the sensors developed here are aimed at embedded or point-of-sampling applications: (1) when there is not enough time to send a sample to a lab for analysis, (2) in resource-poor settings, (3) when collecting analyte and shipping it to a lab would damage the sample, or (4) for in-situ monitoring. To this end, a bulk micromachined resonant cantilever sensor and a surface micromachined sensor based on the spring-softening effect are investigated as transduce
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6

CALMO, ROBERTA. "Development of Monolithic Glass Suspended Microchannel Resonators designed for bead-based bioassays." Doctoral thesis, Politecnico di Torino, 2019. http://hdl.handle.net/11583/2742528.

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7

Hermouet, Maxime. "Microdisques optomécaniques résonants en silicium pour la détection biologique en milieu liquide." Thesis, Université Grenoble Alpes (ComUE), 2019. http://www.theses.fr/2019GREAT013/document.

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La détection précoce de biomarqueurs de maladies telles que le cancer représente un intérêt majeur dans le processus de traitement. En effet, un diagnostic avancé augmente considérablement les chances de réussite du traitement. En pratique, cela nécessite des outils permettant de détecter rapidement d'infimes quantités de composants biologiques (anticorps, protéines, ADN...) au sein d'échantillons réels tels que du sang ou du sérum.Ces dernières années, les avancées et progrès technologiques en matière de micro et nanofabrication ont permis le développement des Micro et Nano Systèmes Electro-M
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8

Sivni, V. B., and О. S. Hnatenko. "Investigation of the Generation of Droplet Lasers." Thesis, Sumy State University, 2018. http://essuir.sumdu.edu.ua/handle/123456789/67958.

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In this paper, the geometric parameters of liquid resonators of the type of a whisperer gallery are investigated and calculated theoretically. Namely, the laser dye Rhodamine 6G in the form of a drop on the substrate is pumped at a wavelength of 532 nm and emits a wavelength of 580 nm. The paper investigates the change in the wavelength of the radiation with a change in the droplet size. And also calculated the maximum angles of adhesion of the drop to the substrate.
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9

Sivni, V. B., and O. S. Hnatenko. "Investigation of the Generation of Droplet Lasers." Thesis, Sumy State University, 2018. http://openarchive.nure.ua/handle/document/6803.

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In this paper, the geometric parameters of liquid resonators of the type of a whisperer gallery are investigated and calculated theoretically. Namely, the laser dye Rhodamine 6G in the form of a drop on the substrate is pumped at a wavelength of 532 nm and emits a wavelength of 580 nm. The paper investigates the change in the wavelength of the radiation with a change in the droplet size. And also calculated the maximum angles of adhesion of the drop to the substrate.
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10

Ali, Aboulela Gaber Noha. "Optofluidique : études expérimentales, théoriques et de modélisation." Thesis, Paris Est, 2014. http://www.theses.fr/2014PEST1076/document.

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Ce travail porte sur l'étude de propriétés optiques des fluides à échelle micrométrique. A cet effet, nous avons conçu, réalisé et étudié différents types de micro-résonateurs optofluidiques, sous forme de laboratoires sur puce. Notre analyse est fondée sur la modélisation analytique et numérique, ainsi que sur des mesures expérimentales menées sur des micro-cavités optiques; nous utilisons l'une d'entre elles pour des applications de réfractométrie de fluides homogènes et de fluides complexes ainsi que pour la localisation par piégeage optique de microparticules solides. Nous nous sommes d'ab
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11

Hida, H., M. Shikida, M. Okochi, H. Honda, and K. Sato. "Gas-Liquid Separated Resonator for Bio-Chemical Application." IEEE, 2009. http://hdl.handle.net/2237/13969.

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12

Neshasteh, Hamidreza. "Ultra-high frequency optomechanical disk resonators in liquids." Electronic Thesis or Diss., Université Paris Cité, 2023. http://www.theses.fr/2023UNIP7132.

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Dans cette thèse, nous présentons une étude approfondie des résonateurs à disques optomécaniques ultra-haute fréquence, en fonctionnement dans divers environnements liquides. L'objectif du travail était de développer des techniques expérimentales optiques et des modèles théoriques pour étudier les interactions fluide-structure dans des dispositifs micro ou nanométriques vibrants, ayant des applications potentielles en fluidique, en détection pour le biomédical et en science des matériaux. Nous avons appliqué des techniques de transduction optomécaniques à des résonateurs à disque en silicium p
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13

Hyttinen, Emil, Simon Nee, and Simon Ye. "Fundamental limits to force detection using a bulk mode resonator in liquid." Thesis, KTH, Fysik, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-103031.

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The basic idea of non-contact Atomic Force Microscopy (AFM) is to generate an image of a surface by scanning with a sharp probe on a sample, without touching. During the scan the reactions due to the non-contact forces between the tip of the probe and the surface are measured. There is interest in imaging biological samples with AFM, but conventional AFM cantilevers perform poorly in a liquid environment, which is required for many measurements in biology. The aim of this report is to find out if a crystal bulk mode resonator can be used as an alternative to a conventional cantilever in liquid
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14

Byun, Albert Joonsoo. "Chemical Application of Silicon-Based Resonant Microsensor." Thesis, Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/16296.

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The detection of volatile organic compounds in liquid is of interest for applications in public health, workplace safety and environmental monitoring. Traditionally, water samples were taken and analyzed in the laboratory using classical laboratory instrumentation. Current trends target real-time measurements using e.g. chemical microsensors built with microfabrication technologies. Among these, mass-sensitive chemical sensors, based on cantilever beams or surface acoustic devices, have shown substantial promise in gas-phase applications. In a liquid environment, the resonant microstructures t
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15

Kandil, Mohamed E. "The development of a vibrating wire viscometer and a microwave cavity resonator for the measurement of viscosity, dew points, density, and liquid volume fraction at high temperature and pressure." Thesis, University of Canterbury. Chemical and Process Engineering, 2005. http://hdl.handle.net/10092/1070.

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This thesis describes the development and testing of two apparatuses; a vibrating wire viscometer to measure the viscosity of fluids over a wide range of temperature and pressure; and a microwave cavity resonator to measure dew points, gas phase densities, and liquid drop out volumes. Viscosity and density of downhole fluids are very important properties as their values can determine the economic viability of a petroleum reservoir. A vibrating wire viscometer has been developed with an electrically insulating tensioning mechanism. It has been used with two wires, of diameters (0.05 and 0.150)
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16

Heinisch, Martin. "Résonateurs mécaniques pour la mesure de la masse volumique et de la viscosité de liquide." Thesis, Bordeaux, 2015. http://www.theses.fr/2015BORD0116/document.

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Cette thèse synthétise les travaux récents de l’auteur sur l’utilisation de résonateurs mécaniques pour la détermination simultanée de la viscosité et de la masse volumique de liquides. Ces travaux ont été réalisés entre 2010 et 2015 dans le cadre d’une thèse en cotutelle entre l’Institut de Microélectronique et des Microcapteurs de l’Université Johannes Kepler à Linz en Autriche et le Laboratoire de l’Intégration du Matériau au Système de l’Université de Bordeaux en France. Dans des études précédentes effectuées sur ce sujet par les groupes des deux laboratoires, le concept de l’utilisation d
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17

Antelius, Mikael. "Wafer-scale Vacuum and Liquid Packaging Concepts for an Optical Thin-film Gas Sensor." Doctoral thesis, KTH, Mikro- och nanosystemteknik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-119839.

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This thesis treats the development of packaging and integration methods for the cost-efficient encapsulation and packaging of microelectromechanical (MEMS) devices. The packaging of MEMS devices is often more costly than the device itself, partly because the packaging can be crucial for the performance of the device. For devices which contain liquids or needs to be enclosed in a vacuum, the packaging can account for up to 80% of the total cost of the device. The first part of this thesis presents the integration scheme for an optical dye thin film NO2-gas sensor, designed using cost-efficient
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18

Hadji, Céline. "MEMS à veine fluidique intégrée pour la caractérisation et la pesée d'échantillons liquides." Thesis, Université Grenoble Alpes (ComUE), 2016. http://www.theses.fr/2016GREAY063/document.

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Les systèmes MEMS et NEMS permettent, par résonance mécanique, des mesures de masse avec une sensibilité et une résolution propices à la caractérisation d'objets de taille micro- et nanométrique. Ces dispositifs, adaptés à une intégration dans des systèmes d'analyse miniatures plus complexes, sont d'intérêt pour la recherche biomédicale et la détection de particules. Toutefois la caractérisation en milieu liquide reste à ce jour délicate, principalement à cause de phénomènes dissipatifs associés à la mise en mouvement du fluide environnant le dispositif vibrant.Afin de lever ce verrou, l’équip
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19

Bjurström, Johan. "Advanced Thin Film Electroacoustic Devices." Doctoral thesis, Uppsala universitet, Fasta tillståndets elektronik, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-7672.

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The explosive development of the telecom industry and in particular wireless and mobile communications in recent years has lead to a rapid development of new component and fabrication technologies to continually satisfy the mutually exclusive requirements for better performance and miniaturization on the one hand and low cost on the other. A fundamental element in radio communications is time and frequency control, which in turn is achieved by high performance electro-acoustic components made on piezoelectric single crystalline substrates. The latter, however, reach their practical limits in t
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20

Alperin, Baptiste. "Propriétés basse température et amortissement par les systèmes à deux niveaux de résonateurs nanomécaniques en aluminium." Electronic Thesis or Diss., Université Grenoble Alpes, 2024. http://www.theses.fr/2024GRALY083.

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Les sondes mécaniques sont omniprésentes en physique des basses températures. Elles sont historiquement utilisées pour la mesure au sein de fluides quantiques, détectant à la fois les excitations fondamentales et les vortex quantiques, ainsi que dans l'étude de la vitesse du son et de l'absorption acoustique dans les solides quantiques (comme les verres contenant des systèmes à deux niveaux comme éléments constitutifs expliquant leur dynamique mécanique à basse énergie, ou même l'helium-4 solide présentant de la super-plasticité). Avec l'avènement des technologies de salle blanche, ces disposi
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21

Iglesias, Hernandez Luis. "Resonant microsystems for hydrogen gas detection without functionalized coating." Thesis, Bordeaux, 2020. http://www.theses.fr/2020BORD0112.

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Le dihydrogène, communément appelé hydrogène, est un gaz dangereux qui devient explosif au-dessus d'une concentration de 4% dans l'air. Par conséquent, de nombreuses applications pour lesquelles l'hydrogène est utilisé ou produit nécessitent des capteurs d'hydrogène pour s'assurer que cette limite n'est jamais atteinte. Ces applications comprennent la surveillance des déchets radioactifs, la production d'énergie propre ou plus généralement la surveillance des gaz industriels. La plupart des dispositifs de détection existants actuellement sur le marché sont basés sur l'utilisation d'un composé
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22

Коробко, Олександр Анатолійович. "Удосконалення резонансного діелькометричного методу контролю та визначення вологості рідких неполярних діелектриків". Thesis, Національний технічний університет "Харківський політехнічний інститут", 2019. http://repository.kpi.kharkov.ua/handle/KhPI-Press/40781.

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Дисертація на здобуття наукового ступеня кандидата технічних наук (доктора філософії) за спеціальністю 05.11.13 "Прилади і методи контролю та визначення складу речовин" (15 – Автоматизація та приладобудування) – Національний технічний університет "Харківський політехнічний інститут". Мета роботи: удосконалення резонансного діелькометричного методу контролю та визначення вологості рідких неполярних діелектриків задля підвищення його чутливості до рівня 10⁻⁵ з одночасною мінімізацією впливу "сортової невизначеності". Запропоновані та досліджені: спрощена математична модель емульсії на основі мо
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Коробко, Олександр Анатолійович. "Удосконалення резонансного діелькометричного методу контролю та визначення вологості рідких неполярних діелектриків". Thesis, Національний технічний університет "Харківський політехнічний інститут", 2018. http://repository.kpi.kharkov.ua/handle/KhPI-Press/40783.

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Дисертація на здобуття наукового ступеня кандидата технічних наук (доктора філософії) за спеціальністю 05.11.13 "Прилади і методи контролю та визначення складу речовин" (15 – Автоматизація та приладобудування) – Національний технічний університет "Харківський політехнічний інститут". Мета роботи: удосконалення резонансного діелькометричного методу контролю та визначення вологості рідких неполярних діелектриків задля підвищення його чутливості до рівня 10⁻⁵ з одночасною мінімізацією впливу "сортової невизначеності". Запропоновані та досліджені: спрощена математична модель емульсії на основі м
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24

Kuan-ZhouChen and 陳冠州. "High Sensitive Active Split-Ring Resonators for Measuring Permittivity of Liquid." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/x46b9b.

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碩士<br>國立成功大學<br>電機工程學系<br>104<br>This thesis proposed a high sensitive dual active split ring resonator (DA-SRR) microwave sensors to measure the permittivity and the concentration of the liquid. Due to the external perturbation impacts caused by the materials under test (MUT) on the SRR, the resonator generates a resonant frequency offset, which can be appled to detect the dielectric constant of the MUT or the test liquids. By an active feedback network to compensate the loss of the resonantor, the quality factor (Q-factor) of the traditional passive microwave resonantor can be enlarged. Ther
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25

"Thin film acoustic waveguides and resonators for gravimetric sensing applications in liquid." Université catholique de Louvain, 2006. http://edoc.bib.ucl.ac.be:81/ETD-db/collection/available/BelnUcetd-01272006-113333/.

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26

Shaforost, Olena N. [Verfasser]. "Microwave whispering gallery resonators for nanolitre liquid sensing / von Olena N. Shaforost." 2009. http://d-nb.info/997214767/34.

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27

Ari, Atakan Bekir. "Nanomechanical resonators at extreme dissipation: measurement of the Brownian force in a highly viscous liquid and optomechanical resonators for quantum-limited transduction." Thesis, 2021. https://hdl.handle.net/2144/43073.

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Dissipation is an inevitable property of a mechanical system and influences the dynamical behavior and device performance. It is, therefore, crucial to study and understand the sources of dissipation in mechanical systems in order to control the dissipation present in the system. These sources of dissipation can be broadly classified in two groups: extrinsic and intrinsic mechanisms. Extrinsic mechanisms are independent of material properties and influenced by the external properties of the system, such as geometry, pressure, and temperature. Intrinsic mechanisms on the other hand, are indepen
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Shen, Da-Wei, and 沈達緯. "Integration of Micro-Droplet Resonators and Liquid Waveguides Applied for Microfluidic Dye Lasers." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/06469066828939177525.

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碩士<br>國立清華大學<br>光電工程研究所<br>100<br>Microfluidic technology has been widely applied in lab-on-chip because of easy fabrication, low cost and easy manipulation of fluid in microscopic scale. To integrate microfluidics with photonics, we propose and demonstrate microfluidic dye lasers by combining flow-focusing microfluidic channels to generate micro-droplets (laser cavity) with liquid waveguides to couple the light out from the droplet laser. The droplet material is 3mM R6G dye in benzyl alcohol (n=1.54), and the single-mode liquid waveguide is made by mineral oil (n=1.48). We used the finite ele
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29

"Film Bulk Acoustic Resonators of High Quality Factors in Liquid Environments for Biosensing Applications." Doctoral diss., 2011. http://hdl.handle.net/2286/R.I.14242.

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abstract: Micro-electro-mechanical systems (MEMS) film bulk acoustic resonator (FBAR) demonstrates label-free biosensing capabilities and is considered to be a promising alternative of quartz crystal microbalance (QCM). FBARs achieve great success in vacuum, or in the air, but find limited applications in liquid media because squeeze damping significantly degrades quality factor (Q) and results in poor frequency resolution. A transmission-line model shows that by confining the liquid in a thickness comparable to the acoustic wavelength of the resonator, Q can be considerably improved. The devi
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NOCENTINI, SARA. "Tunable polymeric photonic structures." Doctoral thesis, 2017. http://hdl.handle.net/2158/1088792.

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In this work is demonstrated how, combining soft materials and photonic structures thank to a 3D lithographic technique, is possible to create microstructured polymeric photonic devices able to reconfigure their photonic properties under a remote light stimulus.
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Bescherer-Nachtmann, Klaus. "Fibre-Loop Ring-Down Spectroscopy Using Liquid Core Waveguides." Thesis, 2013. http://hdl.handle.net/1974/7906.

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Cavity ring-down spectroscopy has been used over the last twenty years as a highly sensitive absorption spectroscopic technique to measure light attenuation in gases, liquids, and solid samples. An optical cavity is used as a multi-pass cell, and the decay time of the light intensity in the cavity is measured, thereby rendering the techniques insensitive to light intensity fluctuations. Optical waveguides are used to build the optical cavities presented in this work. The geometries of such waveguides permit the use of very small liquid sample volumes while retaining the advantages of cavity ri
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Yu, Jui-hao, and 尤瑞豪. "Study on optically controllable liquid crystal based microring resonator switch." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/57302194025599639539.

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碩士<br>國立中山大學<br>光電工程學系研究所<br>101<br>This thesis is to study the effect of utilizing an optically tunable cladding material to externally change the resonance wavelength of a silicon nitride micro-ring device- thus produces an externally controlled/tunable optical switch. It is separated into two parts. The first part of the thesis will describe the fundamental optical properties of silicon nitride based (SiN based) ring resonator. The coupling coefficient and the optical loss in different gaps have been obtained by numerical fitting the transmission spectrum of the resonator. These properties
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Kuo, Yi-Tun, and 郭奕敦. "Study of tunable micro-ring resonator based on liquid crystal cladding." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/u6g53s.

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碩士<br>國立中山大學<br>光電工程學系研究所<br>103<br>Micro-ring resonator have been extensively studied in field of silicon photonics, because of its excellent wavelength selectivity. We can tuning wavelength by temperatures or doping PN except these two methods. We serve liquid crystals as a cladding layer and the device exhibit large phase shifts and wide resonance-wavelength tuning by utilizing the birefringence change in the liquid crystal cladding. The liquid crystal layer can be modulated by electrical field, optically control and heater.   In this study, we clad the nematic liquid crystal on the silicon
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Yaghmaee, Pouria. "Reconfigurable tunable microwave devices using liquid crystal." Thesis, 2014. http://hdl.handle.net/2440/87368.

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During the past decades, the applications of communication devices have extended widely, from AM radio receivers initially to newly developed GPS, smart mobile phones, radars, wireless LANs, satellite communications and implantable medical devices. The shortage in the available frequency spectrum for radio communications, the demand for portable wireless devices, and the requirement for more functionality in an even smaller volume, requires the development of new concepts in RF technology. One ideal pathway towards development of such new concepts is reconfiguration. Today, due to the rapid pr
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Lin, Huang-Yao, and 林煌堯. "The FPW Resonator Device Using PZT Sol-Gel Thin Film for Liquid Sensing." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/72239688071710746145.

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碩士<br>國立高雄第一科技大學<br>機械與自動化工程所<br>94<br>ABSTRACT This thesis focuses on the development of the Flexure plate wave (FPW) resonator using piezoelectric lead zirconate titanates (PZT) films for liquid sensing. The propagation velocities of the FPW are very sensitive to the stress and the loading mass on the substrate. There is less scattering of the energy from the FPW to the loading liquid due to its low phase velocity. The back cavity of the FPW device can serve as the loading area of the sensing liquid to detect the density of liquid and the stress of the membrane. This research adopts PZT piez
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Yang, Chun-hung, and 楊畯閎. "The Liquid Sensor Using Shear-Mode Thin Film Bulk Acoustic Resonator with AlN Films." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/84729392939378800180.

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碩士<br>國立中山大學<br>電機工程學系研究所<br>99<br>Shear-mode thin film bulk acoustic resonator (TFBAR) devices with c-axis tilted AlN films are fabricated for the application of liquid sensors. To fabricate shear-mode TFBAR devices, the off-axis RF magnetron sputtering method for the growth of piezoelectric AlN thin films is adopted and influences of the relative distance and the sputtering parameters are investigated. The shrar-mode phenomenon of a TFBAR results from the tilted crystalline orientation of AlN thin films. In this thesis, the AlN thin films are deposited with tilting angles of 15° and 23°, set
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Jiang, Jia-Ming, and 姜嘉銘. "Study of Liquid Sensor Using Dual-Mode ZnO Thin-Film Bulk Acoustic Resonator (TFBAR)." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/50522120087495626466.

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碩士<br>國立中山大學<br>電機工程學系研究所<br>99<br>A novel liquid sensor is designed and fabricated by using thin film bulk acoustic resonator (TFBAR) devices with c-axis 23°-tilted ZnO films. To fabricate TFBAR devices, the off-axis RF magnetron sputtering method for the growth of piezoelectric ZnO thin films is adopted. The influences of the relative distance and sputtering parameters are investigated. In this report, the piezoelectric ZnO thin films with tilting angle of 23° are set by controlling the deposition parameters. The properties of the c-axis 23°-tilted ZnO thin films are investigated by X-ray di
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LIOU, FANG-KUEI, and 劉芳魁. "Both Voltage Sensor and Liquid-Level Sensor Based on a Fabry-Perot Fiber Bragg Grating Resonator." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/h39hba.

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Li, Yuan-Cheng, and 李元正. "Study of electrically tunable, rapid response and low-loss SiN ring resonator using blue phase liquid crystal." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/x33swg.

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碩士<br>國立中山大學<br>光電工程學系研究所<br>101<br>Ring resonators usually made of SiN (refractive index=1.6~2) or silicon (refractive index=3.4) possess wavelength selectivities and have been widely used in integrated optical circuits. The resonant wavelengths of ring resonators can be tuned by varying the effective index of ring resonators. Due to the nematic liquid crystals can function as phase modulation materials, they can be employed as the cladding of ring resonators to provide high tunability. However, the scattering loss raises due to the lower order of the nematic liquid crystal alignment. In addi
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Lee, Ban-Chen, and 李般丞. "Part 1: Bistability of a Quasi-1D Wigner Solid on Liquid Helium; Part 2: Superconducting Coplanar Waveguide Resonator." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/y7v77j.

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碩士<br>國立交通大學<br>物理研究所<br>105<br>In the first part of this thesis, we investigate the bistability of decoupling of an electronic crystal (Wigner solid, WS) from ripplonic polarons (or ‘dimple lattice’, DL) formed at the surface of liquid helium. In the device we used for this experiment, two arrays of microchannels form electron reservoirs, which are separated by a single microchannel. The electron density and the strength of the electrostatic confinement in this central microchannel are controlled by side gate electrodes, and a bottom gate electrode that is positioned underneath the helium. Th
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Sánchez, Marín Juan Rafael. "Reconfigurable Devices using Liquid Crystal at Microwave Frequencies in Substrate Integrated Waveguide." Doctoral thesis, 2019. http://hdl.handle.net/10251/132183.

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[ES] La cantidad de servicios de telecomunicación se ha incrementado signiticativamente en las últimas décadas. El uso de teléfonos inteligentes, así como el Internet de las Cosas, está generando una saturación del espectro electromágnetico. Por tanto, los requisitos de los sistemas de microondas han cambiado para adaptarse a estos nuevos avances. Para satisfacer estas necesidades, se busca el desarrollo de dispositivos de bajo coste, volumen, peso y consumo. Además, interesa que sean espectralmente eficientes y fácilmente integrables con otros dispositivos. Entre todos los dispostivos de mi
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