Absorption band — An absorption band is a range of wavelengths (or, equivalently, frequencies) in the electromagnetic spectrum which are able to excite a particular transition in a substance. See absorption spectrum. Since energetic transitions can take place in… … Wikipedia
Critical band — The term critical band, introduced by Harvey Fletcher in the 1940s, referred to the frequency bandwidth of the then loosely defined auditory filter. Psychophysiologically, beating and auditory roughness sensations can be linked to the inability… … Wikipedia
Energiebandverbreiterung — energijos juostų išplitimas statusas T sritis fizika atitikmenys: angl. energy band broadening vok. Energiebandverbreiterung, f rus. расширение энергетических зон, n pranc. élargissement de bande d’énergie, m … Fizikos terminų žodynas
energijos juostų išplitimas — statusas T sritis fizika atitikmenys: angl. energy band broadening vok. Energiebandverbreiterung, f rus. расширение энергетических зон, n pranc. élargissement de bande d’énergie, m … Fizikos terminų žodynas
élargissement de bande d’énergie — energijos juostų išplitimas statusas T sritis fizika atitikmenys: angl. energy band broadening vok. Energiebandverbreiterung, f rus. расширение энергетических зон, n pranc. élargissement de bande d’énergie, m … Fizikos terminų žodynas
расширение энергетических зон — energijos juostų išplitimas statusas T sritis fizika atitikmenys: angl. energy band broadening vok. Energiebandverbreiterung, f rus. расширение энергетических зон, n pranc. élargissement de bande d’énergie, m … Fizikos terminų žodynas
spectroscopy — spectroscopist /spek tros keuh pist/, n. /spek tros keuh pee, spek treuh skoh pee/, n. the science that deals with the use of the spectroscope and with spectrum analysis. [1865 70; SPECTRO + SCOPY] * * * Branch of analysis devoted to identifying… … Universalium
Spectral line — Continuous spectrum Emission line … Wikipedia
Optical amplifier — An optical amplifier is a device that amplifies an optical signal directly, without the need to first convert it to an electrical signal. An optical amplifier may be thought of as a laser without an optical cavity, or one in which feedback from… … Wikipedia
United States — a republic in the N Western Hemisphere comprising 48 conterminous states, the District of Columbia, and Alaska in North America, and Hawaii in the N Pacific. 267,954,767; conterminous United States, 3,022,387 sq. mi. (7,827,982 sq. km); with… … Universalium