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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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Shock Tube Index of Refraction Measurements using a Quadrature Fringe Imaging Interferometer.
Abstract not provided.
Optical Diagnostic for Index of Refraction Measurements Across Shock Waves.
Abstract not provided.
Observing Atmospheric Refraction with Stellar Occultation: Case Study with data from Tyvak-0172
Understanding the upper atmosphere is vital to successful hypersonic flight. Perturbations in temperature and density due to phenomena such as gravity waves and turbulence strongly affect the performance of a hypersonic vehicle (Roy and Blottner, 2006). Observing upper atmospheric conditions from the ground is difficult due to the interference of clouds, so most observations are gathered with weather balloons. However, balloons can only travel up to about 35 km from the Earth surface. Therefore, we turn to remote sensing for atmospheric conditions above 35 km.
Refractive Index Measurements of Organic Scintillators for Particle Transport Simulations
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Development and Analysis of a Global Refractive Index of Water Data Layer for Spaceborne and Airborne Bathymetric Lidar
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Determination of mid-infrared refractive indices of superconducting thin films using Fourier transform infrared spectroscopy
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A compact radial shearing interferometer based on the law of refraction.
Common path interferometer, using two fresnel zone plates for diffraction beam splitting, is applied to the testing of unit magnification optics
A viscous model of the earth compared to gravity anomalies and seismic refraction profiles of oceanic trenches and ridges report no. 2
Examination of effects of sphere and cylinder sinking beneath surface of fluid of uniform viscosity - oceanography
Index of refraction of helium in the shielding approximation
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Properties of refractive indices, transmission and damping coefficients of the ionosphere at low and superlow frequencies <svoystva koeffitsientov prelomleniya, zatukhaniya i koeffitsienta propuskaniya ionosfery na nizkikh i sverkhnizkikh chastotakh
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Experimental refractive indices and theoretical small-particle spectral properties of selected metals
Absorption, scattering, and extinction parameters of small spherical metal particles used as seeding agents to control radiant heat transfer in gaseous nuclear rocket engines
Experimental measurement of optical angular deviation caused by atmospheric turbulence and refraction
Amplitude and frequency measurement of random position fluctuation of stationary laser optical source due to atmospheric turbulence
VHF refraction and scattering by visible auroral forms
Kirchhoff-Fresnel analysis, and interferometric measurements on radio wave phase shifting by aurora
Sounding the atmosphere by refractive techniques
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Tables of Mie scattering functions for particles with refractive index 1.5
Mie scattering calculations on laser wavelengths and atmospheric aerosols
The upper atmosphere as a multiply refractive medium for neutral air motions.
Characteristic plane harmonic free internal neutral atmospheric wave oblique propagation through horizontally stratified quiet atmosphere for various thermospheric parameters
NASA minitrack interferometer refraction corrections
Atmospheric effects on Minitrack calibration and spacecraft tracking