Results 141 to 150 of about 957,049 (196)
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Applied Optics, 1991
A brief historical overview of the atmospheric optical phenomena that appear in works of fine art is presented. It is shown that artists have recorded many features of the color and brightness of the sky and clouds, aerial perspective and visibility effects, and phenomena, including crepuscular rays, rainbows, halos, and coronas.
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A brief historical overview of the atmospheric optical phenomena that appear in works of fine art is presented. It is shown that artists have recorded many features of the color and brightness of the sky and clouds, aerial perspective and visibility effects, and phenomena, including crepuscular rays, rainbows, halos, and coronas.
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On the atmosphere as an optical communication channel
IEEE Transactions on Information Theory, 1968A reasonable model for the atmosphere as an optical communication channel is presented and then reduced, with some approximation, to an equal-strength diversity system. By using the realistic assumption of a very large variance for the channel's random phase, the operations that the maximum-likelihood receiver must perform are determined.
Robert S. Kennedy, Estil V. Hoversten
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An atmospheric optical ring network
IEEE Transactions on Communications, 1990An experimental 10-Mb/s token-ring local area network (LAN) that uses atmospheric optical communication links is described. Objective and subjective performance results are reported for operation over a 170-m-long outdoor path. The data support the following hypotheses.
Bradley T. Binder +3 more
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Optical remote sensing of the atmosphere
Applied Optics, 1985The Optical Society of America held a Topical Meeting on Optical Remote Sensing of the Atmosphere during the week of 15 Jan. 1985. This 1 Nov. 1985 issue of Applied Optics contains sixteen of the papers presented at this meeting.
D K, Killinger +2 more
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Atmospheric Optical Communication System
IEEE Transactions on Communications, 1977The prototype atmospheric optical communication system has been developed, and various field tests have been carried out in Tokyo and Niigata. The system with a laser diode can transmit a 4-MHz color television signal or 120 telephone channels. This paper gives an outline description of system design based on field test results.
Tadao Kobayashi +2 more
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2012
7.1 Introduction The performance of ground-based telescopes is affected by the atmosphere in two ways: (1) absorption in the atmosphere limits the wavelength regions available for ground-based astronomy to several transparent or partially transparent windows; and (2) atmospheric turbulence limits the angular resolution of telescopes that are imaging
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7.1 Introduction The performance of ground-based telescopes is affected by the atmosphere in two ways: (1) absorption in the atmosphere limits the wavelength regions available for ground-based astronomy to several transparent or partially transparent windows; and (2) atmospheric turbulence limits the angular resolution of telescopes that are imaging
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Optical investigations of atmospheric aerosol
Uspekhi Fizicheskih Nauk, 1968CONTENTS 1. Introduction 353 2. Certain Information on the Atmospheric Aerosol 355 3. Theory of Optical Properties of Aerosol 358 4. Optical Methods of Investigating the Atmosphere as Part of the General Problem of Indirect Measurements 362 5. Optical Properties of Aerosol and Microphysics of the Dispersed Phase 365 6.
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Compensated atmospheric optics
Progress in Quantum Electronics, 1995Abstract This paper is a pedagogical review of several new methods and solutions to calculate the performance and limits of phase-only compensating adaptive optics systems.
S. Enguehard, B. Hatfield
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Optical Propagation through the Atmosphere
1991Questo articolo è il capitolo 19 di 34 capitoli, ciascuno scritto da un eminente esperto nel proprio argomento, che J. Goodmann ha raccolto in un volume promosso dall'ICO ( International Commission for Optics) allo scopo di descrivere la situazione presente della ricerca in ottica a livello mondiale.
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An Atmospherically Driven Optical Switch
Angewandte Chemie International Edition, 1999The atmospheric regulation of the photophysical properties of 1 gives rise to a new optical switch. This optical information can be translated with the utmost spatial and molecular economy using confocal single molecule spectroscopy. R=OH.
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