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1 время когерентности
время когерентности (τc)
Минимальное запаздывание, для которого степень временной когерентности принимает значение, равное нулю.
Примечание
Если степень взаимной когерентности монотонно зависит от запаздывания и расстояния между точками с координатами R1 и R1, то время когерентности τc, длину когерентности Δc, площадь когерентности Sc и объем когерентности Vc определяют по спаду степени взаимной когерентности до уровня 0,5.
[ ГОСТ 7601-78]
время когерентности
Максимальное время, в течение которого поле в заданной области сохраняет когерентность.
[Сборник рекомендуемых терминов. Выпуск 75. К вантовая электроника. Академия наук СССР. Комитет научно-технической терминологии. 1984 г.]Тематики
- измерение лазерного излучения
- квантовая электроника
- оптика, оптические приборы и измерения
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Русско-французский словарь нормативно-технической терминологии > время когерентности
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2 ramble on
(to talk for a long time in an aimless or confused way.) discourir longuement et sans cohérence
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