...In this case, the light passing through the two slits always has a constant phase difference, so if the difference in distance from the two slits on the screen is an even multiple of a half wavelength, the crests of the light waves will overlap, and if it is an odd multiple of a half wavelength, the crests and valleys will overlap. The light and dark fringes obtained in this experiment indicate the interference of light, and these fringes are called interference fringes. If white light is used in this experiment instead of monochromatic light, the areas where the lights constructively and destructively interact will differ depending on the wavelength, so colored bands will appear on the screen. ... *Some of the terminology that mentions "interference fringe" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…この場合,二つのスリットを通る光は,つねに一定の位相差をもっているので,スクリーン上で二つのスリットからの距離の差が半波長の偶数倍であれば光波の山と山が重なり,半波長の奇数倍ならば山と谷とが重なることになる。この実験で得られる明暗の縞は,光の干渉を示しているもので,この縞を干渉縞interference fringeと呼ぶ。この実験で,単色光の代りに白色光を使うときには,波長によって強め合うところと弱め合うところが違うので,スクリーン上には色のついた帯が並ぶ。… ※「interference fringe」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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