- 拉曼簡介
- 拉曼散射 Raman scattering
拉曼散射 Raman scattering
1928年，印度科學家C. V. Raman利用太陽光和一個窄帶濾波器製造出單色光。他發現光穿過一個透明的物質，一些偏轉光的波長改變，此現象被稱為拉曼效應。
拉曼光譜是一種光散射技術，入射光子和樣品相互作用產生了散射光子，大多數散射光與入射光具有相同的波長，稱為瑞利散射。還有極小一部分散射光的波長與入射光不同，散射光強度大約是總散射光強度的10-7，其波長的改變由散射物質的化學結構所決定，稱為拉曼散射。
In 1928, Indian scientists C. V. Raman use a narrowband filter and sunlight to create a monochromatic light. He discovered that when light traverses a transparent material, some of the deflected light changes in wavelength, This phenomenon was then termed as the raman scattering.
Raman spectroscopy is a light scattering technique, a photon of incident interacts with a sample to produce scattered light, most of the scattered light and incident light having the same wavelength, known as Rayleigh scattering. Also, the wavelength of a small amount of scattered light is different from the incident light, it's intensity of scattered light is about 10-7, which changes the wavelength determined by the chemical structure of the scattering material, known as Raman scattering.