Tesis sobre el tema "Aluminum waveguide"
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Santamaria, Hernandez Amilcar. "Aluminum Nitride Waveguides for Potential Soliton Propagation". University of Cincinnati / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1456848023.
Texto completoHarten, Paul Alexander. "Ultrafast phenomena in gallium arsenide/aluminum gallium arsenide multiple quantum well waveguide structures using a near infrared femtosecond laser system". Diss., The University of Arizona, 1992. http://hdl.handle.net/10150/185954.
Texto completoNICOSIA, CARMELO. "Study and design of hollow core wave guide for LASER beam propagation". Doctoral thesis, Politecnico di Torino, 2021. http://hdl.handle.net/11583/2872351.
Texto completoSamudrala, Pavan Kumar. "Alumina waveguide characterization and SPARROW biosensor modeling". Morgantown, W. Va. : [West Virginia University Libraries], 2006. https://eidr.wvu.edu/etd/documentdata.eTD?documentid=4841.
Texto completoTitle from document title page. Document formatted into pages; contains vii, 85 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 70-72).
O'Hara, Anthony. "Transmission characteristics of small bore hollow alumina waveguides, rigid and flexible, at 10.6μm". Thesis, Heriot-Watt University, 1990. http://hdl.handle.net/10399/276.
Texto completoLoStracco, Gregory 1960. "Furance and carbon dioxide laser densification of sol-gel derived silicon oxide-titanium oxide-aluminum oxide planar optical waveguides". Thesis, The University of Arizona, 1994. http://hdl.handle.net/10150/291388.
Texto completoAlvarado, Maria Elisia Armas. "Produção e caracterização de filmes de nitreto de alumínio e sua aplicação em guias de onda tipo pedestal". Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/3/3140/tde-12072017-085316/.
Texto completoThe main objective of this work is the production and study of Aluminum Nitride (AlN) films deposited by reactive sputtering and the fabrication and characterization of pedestal optical waveguides using AlN as core. Initially, aluminum nitride films were produced by reactive sputtering using a 99.999% aluminum (Al) purity target, and nitrogen (N2) as the reactive gas. Subsequently, the films were characterized by ellipsometry, X-ray Diffraction, Fourier Transform Infrared Spectroscopy (FTIR) and Ultraviolet-visible spectroscopy (UV-VIS). Once the best optical and physical conditions for the deposition of AlN films were obtained, pedestal waveguides using these films as a nucleus were fabricated in this work. The pedestal waveguide provides an alternative manufacturing process where the geometry of the waveguide is determined in the pre-core layer, so it is no longer necessary to delineate the side walls of the core layer thereby facilitating the device fabrication process. The pedestal waveguides fabricated in this work were defined by the partial corrosion of SiO2 by the RIE (Reactive Ion Etching) technique using CHF3 and O2 gases as reactive gases. Once the pedestal is completed, an aluminum nitride film is deposited onto the SiO2 layer as the waveguide core. The air was used as an upper cladding, whose refractive index (n ? 1) increases the confinement of the light in the core and also allows the optical loss characterization. For this characterization, we used the superior view technique that allowed the analysis of optical propagation losses for different pedestal heights and different core thicknesses for both highly (002) oriented and amorphous AlN films.
Lafleur, Gaël. "Nouvelles architectures de composants photoniques par l'ingénierie du confinement électrique et optique". Thesis, Toulouse 3, 2016. http://www.theses.fr/2016TOU30263/document.
Texto completoOptical and electrical confinement using Al(Ga)As layer oxidation is a key milestone in the fabrication of active and passive GaAs-based photonic components. To optimize those devices, through the control of the optical and electrical confinements, a better modelling of oxidation process and a better understanding of optical properties of aluminum oxide (AlOx) is required. One part of this work is focusing on a throughout experimental study of AlGaAs oxidation kinetics, where I studied different important parameters such as wafer temperature, gallium composition, atmospheric pressure and mesa geometry. Then, I developed a new predictive model taking into account the process anisotropy, thus allowing a better temporal and spatial of AlAs oxidation front evolution. Finally, I could exploit this technological process to realize whispering gallery mode microdisks as well as slot optical waveguides, and I have characterized this latter photonic devices
PELENC, DENIS. "Elaboration par epitaxie en phase liquide et caracterisation de couches monocristallines de yag dope : realisation de lasers guide d'onde neodyme et ytterbium a faibles seuils". Grenoble 1, 1993. http://www.theses.fr/1993GRE10171.
Texto completoIyer, Rajiv. "Planar Lightwave Circuits Employing Coupled Waveguides in Aluminum Gallium Arsenide". Thesis, 2008. http://hdl.handle.net/1807/11213.
Texto completoNg, Wing-Chau. "All-optical Wavelength Conversion in Aluminum Gallium Arsenide at Telecommunications Wavelengths". Thesis, 2010. http://hdl.handle.net/1807/25876.
Texto completoWagner, Sean J. "The nonlinear optical properties of gallium arsenide/aluminum arsenide superlattice-core waveguides at telecommunications wavelengths". 2006. http://link.library.utoronto.ca/eir/EIRdetail.cfm?Resources__ID=450419&T=F.
Texto completoHsu, Chih-Kai. "The design of V-band band-pass filter with transmission zero using substrate integrated waveguide by alumina and LTCC process". 2007. http://www.cetd.com.tw/ec/thesisdetail.aspx?etdun=U0001-2707200718440300.
Texto completoHsu, Chih-Kai y 許智凱. "The design of V-band band-pass filter with transmission zero using substrate integrated waveguide by alumina and LTCC process". Thesis, 2007. http://ndltd.ncl.edu.tw/handle/66396400401267937633.
Texto completo臺灣大學
電信工程學研究所
95
There are many allocated frequency band can provide a bandwidth of more than 5 GHz to realize high speed communication up to 2Ghps to 4Ghps. This thesis presents the design of bandpass filters on 60GHz-band and 70GHz-band. In this thesis, we design several coupling resonant bandpass filters for 60GHz-band and 70GHz-band by the substrate integrated waveguide (SIW) cavity structure on the LTCC and alumina substrate. And then we add shunt CPW lines to introduce a transmission zero. The lowest insertion loss of these filters is less than 2.8 dB, and the return loss is higher than 15 dB except the filter with transmission zero. There will be a second passband due to the high order mode of the cavity if we design filters by the substrate integrated waveguide cavity structure.
Wu, Jhih-kuan y 吳致寬. "The design of V-band band-pass filters using substrate integrated waveguide and rectangular ring resonator by alumina and LTCC process". Thesis, 2008. http://ndltd.ncl.edu.tw/handle/97288103034082440177.
Texto completo國立臺灣大學
電機工程學研究所
96
In order to provide the high speed communication with 5GHz bandwidth, this thesis focus on the design of 60GHz-band and 70GHz-band bandpass filters. In this thesis, there are two design structures. The first one is a rectangular ring structure. This structure can create two transmission zeros and have large bandwidth. But this structure is not suitable for the narrowband bandpass filter. The second one is using substrate integrated waveguide (SIW) cavity structure with coupled resonators. Because of the low loss of SIW, we can design SIW filter well. This structure can make the narrowband bandpass filter. Adding the shut CPW lines can introduce an additional transmission zero. We make these two structures on the LTCC substrate. But only the second structure is made on the alumina substrate. Besides the LTCC 60GHz BPF, the insertion loss are less than 2.8dB for all filters. The bandwidth of the rectangular ring structure BPF is 21.35%. And the bandwidth of SIW cavity structure BPFs are 6.8%
Wu, Jhih-kuan. "The design of V-band band-pass filters using substrate integrated waveguide and rectangular ring resonator by alumina and LTCC process". 2008. http://www.cetd.com.tw/ec/thesisdetail.aspx?etdun=U0001-3107200820495800.
Texto completoLazzara, Thomas Dominic. "Directing macromolecular assemblies by tailored surface functionalizations of nanoporous alumina". Thesis, 2011. http://hdl.handle.net/11858/00-1735-0000-0006-B098-3.
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