Comparison of Aero-Optical Measurements from the Flight Test of Full and Hemispherical Turrets on the Airborne Aero-Optics Laboratory

2012 ◽  
Author(s):  
Nicholas De Lucca ◽  
Stanislav Gordeyev ◽  
Eric Jumper
Keyword(s):  
Flight Test ◽  
Optical Measurements

TEM characterization of proton-exchanged LiNbO3 optical waveguides

1986 ◽  
Vol 44 ◽  
pp. 480-481
Author(s):  
W. E. Lee
Keyword(s):  
Refractive Index ◽  
Benzoic Acid ◽  
Optical Waveguides ◽  
Total Internal Reflection ◽  
Index Of Refraction ◽  
Optical Measurements ◽  
Lithium Ions ◽  
Wide Channel ◽  
Tem Characterization

An optical waveguide consists of a several-micron wide channel with a slightly different index of refraction than the host substrate; light can be trapped in the channel by total internal reflection.Optical waveguides can be formed from single-crystal LiNbO3 using the proton exhange technique. In this technique, polished specimens are masked with polycrystal1ine chromium in such a way as to leave 3-13 μm wide channels. These are held in benzoic acid at 249°C for 5 minutes allowing protons to exchange for lithium ions within the channels causing an increase in the refractive index of the channel and creating the waveguide. Unfortunately, optical measurements often reveal a loss in waveguiding ability up to several weeks after exchange.

Some examples of pilot/vehicle dynamics identified from flight test records

1970 ◽  
Author(s):  
Rodney C. Wingrove ◽  
Frederick G. Edwards ◽  
Armando E. Lopez
Keyword(s):  
Vehicle Dynamics ◽  
Flight Test

Magnetic and optical measurements and signatures of reconnection in the cusp and vicinity

2015 ◽  
Vol 185 (6) ◽  
pp. 655-663
Author(s):  
V.V. Safargaleev ◽  
T.I. Sergienko ◽  
A.V. Safargaleev ◽  
A.L. Kotikov
Keyword(s):  
Optical Measurements
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