Accession Number:

AD0701330

Title:

SMALL-ANGLE SCATTERING OF LIGHT BY OCEAN WATER

Descriptive Note:

Corporate Author:

RAND CORP SANTA MONICA CA

Personal Author(s):

• Yura, H. T.

Report Date:

1970-01-01

Pagination or Media Count:

27.0

Abstract:

A semi-quantitative analysis of the mechanisms involved in very intense, small-angle forward scattering of light by ocean water. Two important mechanisms described are 1 suspended biological particles in the water having an index of refraction close to that of water and 2 deviations of the light beam due to large-scale refractive index variations. When the modulation transfer function MTF associated with these mechanisms is calculated, a complete statistical description is obtained for the transverse coherence properties of the beam as a function of the propagation distance. Some numerical estimates are given of the MTFs that might be expected under various conditions.

Descriptors:

• *LASERS
• *LIGHT TRANSMISSION
• GUIDANCE
• MONOCHROMATIC LIGHT
• REFRACTIVE INDEX
• SCATTERING
• TARGET RECOGNITION
• UNDERWATER
• UNDERWATER OBJECT LOCATORS
• VISIBILITY

Subject Categories:

• Lasers and Masers
• Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE