Preparation And Use Of Photonic Band Gap Structures To Manipulate The Optical Properties Of Photoactive Materials
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Preparation And Use Of Photonic Band Gap Structures To Manipulate The Optical Properties Of Photoactive Materials
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Author : Michael David Julian
language : en
Publisher:
Release Date : 2005
Preparation And Use Of Photonic Band Gap Structures To Manipulate The Optical Properties Of Photoactive Materials written by Michael David Julian and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with categories.
Photoactive Functional Soft Materials
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Author : Quan Li
language : en
Publisher: John Wiley & Sons
Release Date : 2018-11-12
Photoactive Functional Soft Materials written by Quan Li and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-11-12 with Technology & Engineering categories.
This book covers the design, synthesis, properties, and applications of functional photoactive soft materials, including aspects of polymers, block copolymers, elastomers, biomaterials, liquid crystals, chemical and physical gels, colloids, and host-guest systems. It combines, in a unified manner, authoritative accounts describing various structural and functional aspects of photoactive soft materials. Photoactive Functional Soft Materials: Preparation, Properties, and Applications: * Brings together the state-of-the-art knowledge on photoactive functional soft materials in a unified manner * Covers a vibrant research field with tremendous application potential in areas such as optoelectronics, photonics, and energy generation * Appeals to a large interdisciplinary audience because it is highly useful for researchers and engineers working on photonics, optoelectronics, imaging and sensing, nanotechnology, and energy materials Photoactive Functional Soft Materials: Preparation, Properties and Applications focuses on the design and fabrication of photoactive functional soft materials for materials science, nanophotonics, nanotechnology, and biomedical applications.
Fabrication Of Photonic Structures By Two Photon Polymerization
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Author : Jesper Juul Serbin
language : en
Publisher: Cuvillier Verlag
Release Date : 2004
Fabrication Of Photonic Structures By Two Photon Polymerization written by Jesper Juul Serbin and has been published by Cuvillier Verlag this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with categories.
Development Of A Photonic Band Gap Structure Through Titania Sol Gel Coating Of Polystyrene Spheres
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Author : Sara Lea Rolfe
language : en
Publisher:
Release Date : 1998
Development Of A Photonic Band Gap Structure Through Titania Sol Gel Coating Of Polystyrene Spheres written by Sara Lea Rolfe and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with categories.
Photonic band gap structures are ordered, periodic dielectric structures, which have interesting optical properties and many applications including preventing spontaneous emission and filtering. Using the sol-gel process, colloidal polystyrene particles were fully coated with silica and titania and then the coated spheres were crystallized into an ordered arrangement of spheres by heating. The sol-gel titania was fully dense and shrank 30.4% from the green state to the sintered state. The colloidal polystyrene particles decomposed during heating at 335°C while the sol-gel titania goes through a three step transformation starting at 400°C and ending at 550°C. After heating to 550°C, X-ray diffraction shows that the titania is anatase in structure. Inverse structures, with dimensions in the optical range, were developed with varying degrees of order. Slow drying in a high humidity atmosphere, decreased sample mold thickness, and a sol-gel precursor with large R groups aided in improving the short-range periodicity. dip-coating. Areas of ordered holes separated by thick titania sections were created using dip-coating. The best order was obtained by centrifuging the coated spheres. As an alternative route, the uncoated polystyrene spheres crystallized into well-ordered grains which could be infiltrated by the sol-gel solution. Spectroscopy results did not indicate a definite band gap where expected due to imperfection of the periodicity and surface roughness.
The Development Of Layered Photonic Band Gap Structures Using A Micro Transfer Molding Technique
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Author : Kevin Jerome Sutherland
language : en
Publisher:
Release Date : 2001
The Development Of Layered Photonic Band Gap Structures Using A Micro Transfer Molding Technique written by Kevin Jerome Sutherland and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with categories.
Over the last ten years, photonic band gap (PBG) theory and technology have become an important area of research because of the numerous possible applications ranging from high-efficiency laser diodes to optical circuitry. This research concentrates on reducing the length scale in the fabrication of layered photonic band gap structures and developing procedures to improve processing consistency. Various procedures and materials have been used in the fabrication of layered PBG structures. This research focused on an economical micro transfer molding approach to create the final PBG structure. A poly dimethlysiloxane (PDMS) rubber mold was created from a silicon substrate. It was filled with epoxy and built layer-by-layer to create a 3-D epoxy structure. This structure was infiltrated with nanoparticle titania or a titania sol-gel, then fired to remove the polymer mold, leaving a monolithic ceramic inverse of the epoxy structure. The final result was a lattice of titania rods that resembles a face-centered tetragonal structure. The original intent of this research was to miniaturize this process to a bar size small enough to create a photonic band gap for wavelengths of visible electro-magnetic radiation. The factor limiting progress was the absence of a silicon master mold of small enough dimensions. The Iowa State Microelectronics Research Center fabricated samples with periodicities of 2.5 and 1.0 microns with the existing technology, but a sample was need on the order of 0.3 microns or less. A 0.4 micron sample was received from Sandia National Laboratory, which was made through an electron beam lithography process, but it contained several defects. The results of the work are primarily for from the 2.5 and 1.0 micron samples. Most of the work focused on changing processing variables in order to optimize the infiltration procedure for the best results. Several critical parameters were identified, ranging from the ambient conditions to the specifics of the procedure. It is believed that most critical for fabrication of high quality samples is control of the temperature of the sample during and after infiltration, and the rate and amount of time spent applying epoxy to the PDMS.
Dissertation Abstracts International
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Author :
language : en
Publisher:
Release Date : 2005
Dissertation Abstracts International written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with Dissertations, Academic categories.
Organic And Nanocomposite Optical Materials Volume 846
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Author : Alexander Cartwright
language : en
Publisher:
Release Date : 2005-05-19
Organic And Nanocomposite Optical Materials Volume 846 written by Alexander Cartwright and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005-05-19 with Technology & Engineering categories.
The MRS Symposium Proceeding series is an internationally recognised reference suitable for researchers and practitioners.
Atomic Layer Deposition Of Nanostructured Materials
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Author : Nicola Pinna
language : en
Publisher: John Wiley & Sons
Release Date : 2012-09-19
Atomic Layer Deposition Of Nanostructured Materials written by Nicola Pinna and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-09-19 with Technology & Engineering categories.
Atomic layer deposition, formerly called atomic layer epitaxy, was developed in the 1970s to meet the needs of producing high-quality, large-area fl at displays with perfect structure and process controllability. Nowadays, creating nanomaterials and producing nanostructures with structural perfection is an important goal for many applications in nanotechnology. As ALD is one of the important techniques which offers good control over the surface structures created, it is more and more in the focus of scientists. The book is structured in such a way to fi t both the need of the expert reader (due to the systematic presentation of the results at the forefront of the technique and their applications) and the ones of students and newcomers to the fi eld (through the first part detailing the basic aspects of the technique). This book is a must-have for all Materials Scientists, Surface Chemists, Physicists, and Scientists in the Semiconductor Industry.
Modelling Of Photonic Band Gap Materials For Mm Wave And Optical Applications
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Author : Andrew Lawrence Reynolds
language : en
Publisher:
Release Date : 2000
Modelling Of Photonic Band Gap Materials For Mm Wave And Optical Applications written by Andrew Lawrence Reynolds and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with categories.
Electrical Electronics Abstracts
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Author :
language : en
Publisher:
Release Date : 1997
Electrical Electronics Abstracts written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Electrical engineering categories.