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Also known as amplification. 1. The increase in a signal...
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In an avalanche photodiode, the gain multiplied by the...
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A laser diode in which the beam is confined to the region...
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A refracting telescope that yields an erect image by the...
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A crystalline semiconductor alloy used as the light...
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A binary semiconductor compound used as a substrate or...
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A laser system consisting of a planar PN junction within a...
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A semiconductor compound used in photonic devices such as...
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The emission of radiant energy produced by the passage of...
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An instrument for detecting or measuring small electric...
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A small mirror, sometimes plane and sometimes concave,...
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A system of mirrors that can be used to direct light from a...
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A numerical value representing the degree of contrast in a...
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A camera used in scintillation recording to make a visible...
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Modification of a system to provide for a linear transfer...
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Radiography using the emission of gamma rays to form an...
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The spontaneous emittance of electromagnetic radiation by...
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An instrument used to detect and measure the energy...
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The optical power loss caused by a space between axially...
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The positive ion current created in an electron tube as a...
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The conduction of electricity in a gas as a result of the...
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A display device that contains an inert gas that gives off...
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A technique for measuring the concentration of any gases....
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One of the first lasers to find practical application....
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The increase in current of a phototube as a result of the...
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A photoemissive cell having an inert gas added to its...
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A phototube having increased response due to the addition...
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An electron tube whose current flow is affected by the...
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A gas laser wherein the gas mixture is not exhausted into...
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An optical instrument designed for the visual examination...
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In detectors, the ability to switch on and off...
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An intensified charge-coupled device that uses a large...
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A discontinuous burst of laser light generated by timing or...
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A telescope objective with excellent spherochromatic...