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Johnson noise

   Also found in: Dictionary/thesaurus, Acronyms 0.01 sec.
Johnson noise [′jän·sən ‚nȯiz]
(electronics)


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However, experimental and theoretical results show that the thermal Johnson noise of cavity mirrors degrades the quantum limitation of Schawlow-Townes linewidth formula of good-cavity laser.
A fast, low-noise readout for the array has been built, which allows the sensitivity of the array to be limited by the fundamental Johnson noise of the microbolometers.
 
 
 
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