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SOI Dictionary Terms

fullerenes
Molecules composed entirely of carbon, in the form of a hollow sphere, ellipsoid or tube. Also called buckyballs....
modulation transfer function analysis/measurement equipment
MTF analysis/measurement equipment refers to instruments and tools used to measure and analyze the modulation transfer...
modulation transfer function
Also called sine wave response and contrast transfer function. The modulation transfer function is the ratio of the...
impedance
Qualitatively, the inverse of the amount of velocity produced by the application of a sinusoidal force to a system;...
optical transfer function
The function that characterizes the quality of an optical system by denoting the modulation and spatial phase shift of the...
sine wave testing chart
A test chart whose luminance changes uniformly in one direction according to a sinusoidal rule. These charts carry groups of...
phase angle
1. The angle between two vectors that represent two simple periodic quantities that vary sinusoidally and that have the same...
laser-induced fluorescence
Laser-induced fluorescence (LIF) is a spectroscopic technique that involves using a laser to excite molecules or atoms,...
sine wave object
An object that has a sinusoidal variation of luminance. Its image will have a sinusoidal variation of illuminance and the...
off-axis paraboloid and ellipsoid mirror
Off-axis paraboloid and ellipsoid mirrors are specialized optical components used in various optical systems, particularly...
Dall-Kirkham telescope
A telescope similar to the customary Cassegrain telescope, but having a primary mirror that is ellipsoidal and a secondary...
turbidity
Turbidity is a measure of the cloudiness or haziness of a fluid caused by the presence of suspended particles. These...
multispectral imaging
Multispectral imaging is a technique that involves capturing and analyzing images at multiple discrete spectral bands within...
propagation constant
For an electromagnetic field mode varying sinusoidally with time at a given frequency, the logarithmic rate of change, with...
hydrogel
A hydrogel is a three-dimensional network of polymer chains that are hydrophilic, meaning they have a strong affinity for...
acousto-optic diffraction
Light diffracted by a solid (usually quartz in crystal or fused form) traversed by acoustic waves. If the ultrasonic...
Gregorian telescope
A telescope with an ellipsoidal secondary concave mirror that reflects rays from a parabolic primary mirror through an...
lock-in amplifier
A lock-in amplifier is a specialized electronic instrument used to extract and measure small signals embedded in noise or...
carbonization
Carbonization is a process in which organic materials are heated in the absence of air, leading to the decomposition of the...
wavelength
Electromagnetic energy is transmitted in the form of a sinusoidal wave. The wavelength is the physical distance covered by...
near-infrared spectrometer
A near-infrared (NIR) spectrometer is an analytical instrument used to measure the absorption, transmission, or reflection...
Fourier analysis
The representation of arbitrary functions as the superposition of sinusoidal functions whereby the representations...

(22 results found)

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