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Article
Er-doped silica-based waveguides prepared by different techniques: RF-sputtering, sol-gel and ion-exchange
Erbium-activated silica-based planar waveguides were prepared by three different technological routes: RF-sputtering, sol–gel and ion exchange. Various parameters of preparation were varied in order to optimiz...
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Chapter
Optical Sensors and Microsystems Using Liquid Crystals
An overview of the basic properties of liquid crystals has been presented as an introduction to the subject of design and fabrication processes of optoelectronic LC devices.
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Article
Fabrication and Characterization of Sol-Gel GeO2-SiO2Erbium-Doped Planar Waveguides
GeO2-SiO2 sol-gel planar waveguides doped with Er were deposited by spinning on silica substrates. P2 O5 or Al2O3 were used as co-dopants to improve erbium dissolution in the GeO2-SiO2 matrix. Multilayer amorp...
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Article
Control of semiconductor particle size in sol-gel thin films
Thin silica and silica-titania films containing CdS and PbS quantum size particles were obtained by separate preparation of the matrix and the colloidal sols and successive mixing. Sulfide particles were obtai...
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Article
Control of Semiconductor Particle Size in Sol-Gel Thin Films
Thin silica and silica-titania films containing CdS and PbS quantum size particles were obtained by separate preparation of the matrix and the colloidal sols and successive mixing. Sulfide particles were obtai...
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Chapter
Optical Tweezers: Laser Manipulation of Microparticles
Although the forces of radiation pressure have been well known to physicists, 1 for a long time it has been difficult to study them in the laboratory due to the presence of temperature gradients causing thermal f...
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Chapter
Microfabrication Technologies for Integrated Optical Devices
Microelectronics and Integrated Optics (10) share most of the microfabrication technologies, in particular micropatterning. Fabrication processes of 10 devices, however, are subject to specific requirements, i...
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Chapter
Introduction to Integrated Optics: Characterisation and Modelling of Optical Waveguides
The first demonstration of the laser in 1960 opened the way to the development of lightwave technology; then the production of low-loss optical fibers in the 70s made guided-wave optical communication systems ...
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Chapter and Conference Paper
Spherical Waveguide Multiplexing Device
A wavelength multiplexer is descr ibed, character ized by a re-flection grating coupled to a waveguide spherical geodesic lens. The device, particularly suitable for monomode fibers, can be used also as a tapp...
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Chapter and Conference Paper
Hollow Waveguides for Long-Wavelength I.R. Radiation
The CO2 laser has been extensively used both in industrial and medical applications; however the provision of a flexible delivery system of the I.R. laser light to a target has been the most difficult problem. Up...
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Chapter
Integrated Optical Signal Processors: Design and Implementation Criteria
A very promising application field for integrated optical (I0) devices is represented by signal processing. In the I0 format it is limited to one-dimensional signals: however, this characteristic is of no cons...
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Article
KOR negative photoresist in integrated optics
Tests on Kodak Ortho Resist (KOR) have been made for application to integrated optics. This material is interesting with respect to other photoresists for its high sensitivity over a wide wavelength range. Opt...
