From Ferroelectrics to Polymers - Perspectives for Thin Film Optical Waveguides and Devices

1999 ◽  
Vol 597 ◽  
Author(s):  
Christoph Buchal
Keyword(s):  
Thin Film ◽  
Optical Waveguides ◽  
Film Growth ◽  
Optical Devices ◽  
Time Span ◽  
Thin Film Growth ◽  
Optical Functions ◽  
Integrated Optical ◽  
Integrated Optical Devices ◽  
Commercial Applications

AbstractPresently commercial optical fiber links experience an explosive growth. On the other hand, the integration of optical functions on a single substrate (“Integrated Optical Device”) is still mostly limited to the R & D-laboratories. Only Mach-Zehnder modulators, made from ferroelectric crystals, have found commercial applications so far. The development phase of the integrated optical devices, based on bulk crystalline LiNbO3, is now covering a time span of nearly 30 years. In comparison, the development of the thin film growth of optical oxide ferroelectrics or of tailored optical polymers is just a few years old and we are still at the beginning of the learning curve.

Integrated Optical Devices Using Amorphous As<inf>2</inf>S<inf>3</inf>Thin Film

1983 ◽  
Vol 6 (1) ◽  
pp. 134-135
Author(s):  
T. Yaji ◽  
S. Kurita ◽  
Y. Tejima ◽  
A. Horinouchi ◽  
M. Koyanagi
Keyword(s):  
Thin Film ◽  
Optical Devices ◽  
Integrated Optical ◽  
Integrated Optical Devices

Krf Excimer Laser Deposition of Titanium from Tici4

1989 ◽  
Vol 158 ◽  
Author(s):  
R. Izquierdo ◽  
C. Lavoie ◽  
M. Meunier
Keyword(s):  
Thin Film ◽  
Excimer Laser ◽  
Optical Waveguides ◽  
Film Growth ◽  
Adsorbed Layer ◽  
Primary Source ◽  
Thin Film Growth ◽  
Laser Deposition ◽  
Krf Excimer Laser

ABSTRACTWe have investigated the deposition of titanium lines from TiCl4 induced by KrF excimer laser (248 nm). Substrates are primarily LiNbO3, for the possible formation of Ti:LiNbO3 optical waveguides, as well as silicon and glass. Titanium lines contain [Cl] < 2 at% and are typically 200 to 1000 Angstroms thick with a width ranging from 3 to 20 μm. Results suggest that the process is controlled by photochemistry of TiCl4 but it is difficult at this point to assert which of the gas or adsorbed layer is the primary source of thin film growth.

scholarly journals Optical Waveguides and Integrated Optical Devices for Medical Diagnosis, Health Monitoring and Light Therapies

Sensors ◽  
2020 ◽  
Vol 20 (14) ◽  
pp. 3981 ◽  
Author(s):  
Jiayu Wang ◽  
Jianfei Dong
Keyword(s):  
Health Monitoring ◽  
Medical Diagnosis ◽  
Optical Waveguides ◽  
Optical Devices ◽  
Light Sources ◽  
Light Sensing ◽  
Integrated Optical ◽  
Integrated Optical Devices ◽  
Optical And Mechanical Properties ◽  
The Many

Optical waveguides and integrated optical devices are promising solutions for many applications, such as medical diagnosis, health monitoring and light therapies. Despite the many existing reviews focusing on the materials that these devices are made from, a systematic review that relates these devices to the various materials, fabrication processes, sensing methods and medical applications is still seldom seen. This work is intended to link these multidisciplinary fields, and to provide a comprehensive review of the recent advances of these devices. Firstly, the optical and mechanical properties of optical waveguides based on glass, polymers and heterogeneous materials and fabricated via various processes are thoroughly discussed, together with their applications for medical purposes. Then, the fabrication processes and medical implementations of integrated passive and active optical devices with sensing modules are introduced, which can be used in many medical fields such as drug delivery and cardiovascular healthcare. Thirdly, wearable optical sensing devices based on light sensing methods such as colorimetry, fluorescence and luminescence are discussed. Additionally, the wearable optical devices for light therapies are introduced. The review concludes with a comprehensive summary of these optical devices, in terms of their forms, materials, light sources and applications.

MODELING OF FIBER-OPTIC COMMUNICATION CHANNEL FOR QUANTUM CRYPTOGRAPHIC SYSTEMS

2019 ◽  
pp. 90-95
Author(s):  
V. A. Minaev ◽  
I. D. Korolev ◽  
O. A. Kulish ◽  
A. V. Mazin
Keyword(s):  
Information Transmission ◽  
Information Transfer ◽  
Fiber Optic ◽  
Single Photon ◽  
Optical Devices ◽  
Energy Losses ◽  
Integrated Optical ◽  
Integrated Optical Devices ◽  
Fiber Optic Communication ◽  
Optic Communication

The existing methods of information delivery to the strategic and tactical management of many government agencies are expensive, not always reliable and efficient. Therefore, quantum cryptographic systems (QCS) have been actively developed in recent years. However, there are problems with the use of the QCS associated with the reliability of information transfer. First, the existing fiber-optic communication channels (FOCC) are not designed to transmit single-photon signals, which leads to the complexity of their cryptographic protection. The second is insufficiently methodically developed calculation of energy losses and errors in the evaluation of the characteristics of information transfer in FOCC QCS. In article the analysis of the energy loss factors in the classical fiber-optic channel is carried out and the additive loss formula is discussed in detail. Then we consider the fiber-optic channel of quantum information transmission with the use of integrated optical devices. The additive formula of optical losses in such a channel is discussed. The features of losses in integrated optical devices are shown. The features of quantum cryptographic system of information transmission are considered. As a result, the model of FOCC QCS taking into account energy losses is presented, which allows competently in theoretical terms and visualize the passage of information through modern quantum cryptographically secure telecommunications while providing control in government structures.

scholarly journals Thin film growth of heavy fermion chiral magnet YbNi3Al9

2021 ◽  
Vol 118 (10) ◽  
pp. 102402
Author(s):  
Hiroaki Shishido ◽  
Akira Okumura ◽  
Tatsuya Saimyoji ◽  
Shota Nakamura ◽  
Shigeo Ohara ◽  
...  
Keyword(s):  
Thin Film ◽  
Heavy Fermion ◽  
Film Growth ◽  
Thin Film Growth
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