1.

Record Nr.

UNINA9910830129903321

Titolo

Free-space optics [[electronic resource] ] : propagation and communication / / Olivier Bouchet ... [et al.]

Pubbl/distr/stampa

London ; ; Newport Beach, CA, : ISTE, 2006

ISBN

1-280-51054-4

9786610510542

1-84704-452-2

0-470-61209-6

0-470-39441-2

1-84704-552-9

Descrizione fisica

1 online resource (221 p.)

Collana

ISTE ; ; v.91

Altri autori (Persone)

BouchetOlivier

Disciplina

621.36

621.382/7

621.3827

Soggetti

Free space optical interconnects

Optical communications

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

First published in France in 2004 by Hermes Science/Lavoisier entitled "Optique sans fil: propagation et communication."

Nota di bibliografia

Includes bibliographical references (p. [209]-215) and index.

Nota di contenuto

Free-Space Optics; Table of Contents; Introduction; Chapter 1. History of Optical Telecommunications; 1.1. Some definitions; 1.1.1. Telecommunication; 1.1.2. Optical transmission; 1.1.3. Radio or Hertzian waves; 1.2. The prehistory of telecommunications; 1.3. The optical air telegraph; 1.4. The code; 1.5. The optical telegraph; 1.6. The heliograph or solar telegraph: a portable telecommunication system; 1.7. Alexander Graham Bell's photophone; Chapter 2. Basic Principles of Electromagnetism; 2.1. Introduction; 2.2. Maxwell's equations in an unspecified medium

2.3. Propagation of electromagnetic waves in an isotropic and linear homogeneous medium2.4. Energy associated with a wave; 2.5. Propagation of a wave in a non-homogeneous medium; 2.6. Coherent and incoherent waves; 2.7. Relations between classical electromagnetism and geometrical optics; 2.8. The electromagnetic



spectrum; 2.9. Units and scales; 2.10. Examples of sources in the visible light and near visible light; 2.11. Conclusion; Chapter 3. Emission and Reception of Optical Beams; 3.1. Foreword; 3.2. Introduction; 3.3. Radiometry: basic concepts

3.4. Optical spectral windows, materials and eye-safety3.5. Transmitters; 3.5.1. Broad spectrum incoherent light emitting diodes; 3.5.1.1. Structures; 3.5.1.2. Near and far field patterns; 3.5.1.3. Spectral characteristics; 3.5.1.4. Electrical and optical characteristics; 3.5.2. Laser diodes: high radiant power output, coherent waves; 3.5.2.1. Structures; 3.5.2.2. "(Φtransmitted )/(Iinjected) characteristic": static and dynamic; 3.5.2.3. Spectra and near field patterns; 3.5.2.4. Spectral and modal instabilities and light intensity noise

3.5.3. Use of amplifiers with "rare earth ion" doped fibers3.6. Photodetectors; 3.6.1. Optical spectral range and materials; 3.6.2. Principle of operation and structures; 3.6.2.1. Surface phenomena: optical reflection, charge mobility and current leakage; 3.6.2.2. Absorption and conduction: semiconductor junctions; 3.6.3. Responsivity, response time, junction capacity and dark current; 3.6.4. Photomultipliers and semiconductor avalanche photodiodes; Chapter 4. Line of Sight Propagation; 4.1. Influence of the propagation environment; 4.1.1. Atmospheric absorption; 4.1.2. Atmospheric scattering

4.1.3. Extinction and total spectral transmission4.1.4. Earth's atmosphere; 4.1.4.1. Atmospheric composition; 4.1.4.2. Aerosols; 4.2. Visibility; 4.2.1. Generalities; 4.2.1.1. Definitions; 4.2.1.2. Units and scales; 4.2.1.3. Meteorology needs; 4.2.1.4. Measurement methods; 4.2.2. Visual estimate of the meteorological optical range; 4.2.2.1. General; 4.2.2.2. Estimate of the day time meteorological optical range; 4.2.2.3. Estimate of the night time meteorological optical range; 4.2.2.4. Estimate of the meteorological optical range in the absence of distant reference markers

4.2.3. Meteorological optical range measurement instruments

Sommario/riassunto

Free space optics is a telecommunications technique which is already being used for everyday exchange of information and has many advantages over other techniques (bandwidth, low cost, mobility of the equipment, security, etc.); within the next decade, it is likely to become an integral and essential part of data-processing architectures and telecommunications.A history of wireless optical telecommunications is given, together with a recapitulation of the application of the principles of electromagnetism to free-space optics. Coverage is also given to the transmitters and receivers of opti



2.

Record Nr.

UNINA9910337689303321

Titolo

Science and Sensibilia by W. V. Quine : The 1980 Immanuel Kant Lectures / / edited by Robert Sinclair

Pubbl/distr/stampa

Cham : , : Springer International Publishing : , : Imprint : Palgrave Macmillan, , 2019

ISBN

9783030049096

3030049094

Edizione

[1st ed. 2019.]

Descrizione fisica

1 online resource (XIV, 210 p. 1 illus.)

Collana

History of Analytic Philosophy, , 2634-6001

Disciplina

146.4

191

Soggetti

Analysis (Philosophy)

Language and languages - Philosophy

Knowledge, Theory of

Ontology

Philosophy - History

Analytic Philosophy

Philosophy of Language

Epistemology

History of Philosophy

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Nota di contenuto

Editor's Introduction -- PART I: THE LECTURES -- Lecture I. Prolegomena: Mind and Its Place in Nature -- Lecture II. Endolegomena: From Ostension to Quantification -- Lecture III. Endolegomena loipa: The Forked Animal -- Lecture IV. What is it All About? -- PART II: INTERPRATIVE ESSAYS -- Quine and the Kantian Problem of Objectivity, Gary Kemp -- Quine on the Norms of Naturalized Epistemology, Gary Ebbs -- Quine's Ding an sich: Proxies, Structure, and Naturalism, Paul Gregory -- "Mental States are like Diseases" Behaviourism in the Immanuel Kant Lectures, Sander Verhaegh -- Quine, Ontology, and Physicalism, Frederique Janssen-Lauret.

Sommario/riassunto

In this book, W. V. Quine's Immanuel Kant Lectures entitled Science and



Sensibilia are published for the first time in English. These lectures represent an important stage in the development of Quine's later thought, where he is more explicit about the importance of physicalist constraints in his account of the steps from sensory stimulation to scientific theory, and in further using them to assess the extent to which mental vocabulary is defensible. Taken as a unit, these lectures fill an important gap in our understanding of his philosophical development from his 1973 work The Roots of Reference to his later work. The volume further contains an introduction that outlines the content and philosophical significance of the lectures. In addition, several essays written by leading scholars of Quine's philosophy provide further insight into the important issues raised in the lectures. Robert Sinclair is Professor of Philosophy in the Faculty of International Liberal Arts at Soka University, Tokyo, Japan. He is the author of several papers on Quine and Dewey. Currently he is working on a book manuscript that examines the influence of C.I. Lewis' conceptual pragmatism on Quine's early philosophical development. .