The refractive index of helium.
Helium refractive index for wavelengths above 600 angstroms calculated by variational method
HELIUM↗
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Results for “Refraction”
Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Angular dependence of the refractive index in the ionosphere.
Graphical method of determining dispersion properties of anisotropic medium, using angular dependence of refractive index
IONOSPHERIC PROPAGATION↗
The refractive characteristics and intraocular tensions of colony chimpanzees Technical report, Aug. 1965
Refraction and intraocular pressure tests of colony chimpanzees - age relationship
REFRACTION↗
Refraction of sound by jet flow or jet temperature
Refraction of sound by jet flow or jet temperature
JET FLOW↗
Experiments on the effects of atmospheric refraction and airplane accelerations on sonic-boom ground-pressure patterns
Effects of atmospheric refraction and supersonic aircraft accelerations on sonic boom ground-pressure patterns
PRESSURE DISTRIBUTION↗
Interferometric measurement of large indices of refraction.
Interferometric measurement of large indices of refraction, noting applicability and accuracy
MICHELSON INTERFEROMETER↗
Estimating Refractive Index Spectra in Regions of Clear Air Turbulence
Estimation of refractive index spectra in regions of clear air turbulence
REFRACTIVE INDEX↗
Refraction of sound by jet flow and jet temperature. Extension of temperature range parameters and development of theory
Refraction of sound field of omnidirectional pure tone point source by temperature and velocity fields of 3/4-inch air or nitrogen jet
SOUND MEASUREMENT↗
Global analysis of seismic refraction measurements.
Seismic refraction measurements, computing statistics for depth to Moho, crustal thickness and upper mantle velocity for geographical and geological provinces
EARTH CRUST↗
Reflection and refraction of electromagnetic waves by a moving dielectric medium.
Plane electromagnetic wave reflection and refraction by semiinfinite dielectric medium moving uniformly parallel to surface analyzed for arbitrary incidence plane orientation
DIELECTRIC PERMEABILITY↗
Scattering theory of absorption-line profiles and refractivity.
Attenuation cross section and refractive index using collision theory, calculating resonance profiles of autoionizing lines based on scattering theory
SCATTERING MATRIX↗
Amplitude distributions of refractive index differences.
Amplitude distributions of refractive index differences showing spikes superimposed on variations continuum due to water vapor clustering
WATER VAPOR↗
Lens Design Using Group Indices of Refraction
An approach to lens design is described in which the ratio of the group velocity to the speed of light (the group index) in glass is used, in conjunction with the more familiar phase index of refraction, to control certain chromatic properties of a system of thin lenses in contact. The first-order design of thin-lens systems is illustrated by examples incorporating the methods described.
optical glass interferometry ultrashort pulses↗
Asronomical refraction: Computational methods for all zenith angles
It is shown that the problem of computing astronomical refraction for any value of the zenith angle may be reduced to a simple, nonsingular, numerical quadrature when the proper choice is made for the independent variable of integration.
Computing numerical methods refractions↗
HYDROMAGNETIC REFLECTION AND REFRACTION AT A FLUID VELOCITY DISCONTINUITY
Presentation of a solution to the problem of mhd reflection and refraction in the presence of a discontinuity in fluid velocity
WAVE PROPAGATION↗
Refraction of sound from a point source placed in an air jet.
Sound refraction of point source within air jet potential core as function of velocity, frequency or temperature
FLOW DISTORTION↗
A study of laser wave scattering due to refractive index perturbations in the propagating medium Final report, 5 Oct. 1965 - 15 Aug. 1966
Data recording and processing systems for GT-7 LASER communicator experiment - laser wave scattering due to refractive index perturbations in propagating medium
DATA RECORDING↗
Refraction of injected sound by a very cold nitrogen jet.
Refraction of injected point source of sound by cold nitrogen jet, noting effects of temperature and velocity fields
JET NOISE↗