Spectroscopy - Wikipedia
网页Spectroscopy, primarily in the electromagnetic spectrum, is a fundamental exploratory tool in the fields of astronomy, chemistry, materials science, and physics, allowing the composition, physical structure and electronic structure of matter to be investigated at the atomic, molecular and macro scale, and over astronomical distances.
Spectroscopy | Definition, Types, & Facts | Britannica
网页2024年8月7日 · Spectroscopy, study of the absorption and emission of light and other radiation by matter, as related to the dependence of these processes on the wavelength of the radiation. Spectroscopic analysis has been crucial in the development of the most fundamental theories in physics.
SPECTROSCOPY中文(简体)翻译：剑桥词典 - Cambridge Dictionary
网页the study of the way matter absorbs or sends out light and other radiation (= energy from light or heat that you cannot see) 光谱学. Scientists have determined the proportions of the chemical elements present in the Sun using spectroscopy. 科学家们利用光谱学测定了太阳中存在的化学元素的比例。
Advances of surface-enhanced Raman and IR spectroscopies: …
网页2021年8月4日 · Raman scattering spectroscopy and infrared absorption spectroscopy are two important spectroscopic techniques that can provide molecular or lattice vibrational fingerprint information 1.
22 Types of Spectroscopy with Definition, Principle, Steps, Uses
网页2022年8月12日 · Table of Contents. What is spectroscopy? What is a spectrometer? What is a spectrophotometer? What is a spectroscope? What is a spectrograph? What are spectra? 1. Absorption spectroscopy. Principle of Absorption spectroscopy. Steps of Absorption spectroscopy. Uses of Absorption spectroscopy. 2. Astronomical spectroscopy.
网页Spectroscopy is a general methodology that can be adapted in many ways to extract the information you need (energies of electronic, vibrational, rotational states, structure and symmetry of molecules, dynamic information). Goals: Understand how light interacts with matter and how you can use this to quantitatively understand your sample.
10.1: Overview of Spectroscopy - Chemistry LibreTexts
网页The focus of this chapter is on the interaction of ultraviolet, visible, and infrared radiation with matter. Because these techniques use optical materials to disperse and focus the radiation, they often are identified as optical spectroscopies.
Spectroscopy - an overview | ScienceDirect Topics
网页Spectroscopic methods can be divided into three main groups: 1. Electronic spectroscopy, including ultraviolet (UV) and visible absorption spectroscopy, fluorescence spectroscopy, circular dichroism (CD) and linear dichroism spectroscopy. 2.
Spectroscopy - Analysis, Astronomy, Chemistry | Britannica
网页2024年8月7日 · Spectroscopy is used as a tool for studying the structures of atoms and molecules. The large number of wavelengths emitted by these systems makes it possible to investigate their structures in detail, including the electron configurations of ground and various excited states.
The basic principles and techniques of spectroscopy | Britannica
网页Usually spectroscopy is devoted to identifying element s and compounds and elucidating atomic and molecular structure by measuring the radiant energy absorbed or emitted by a substance at characteristic wavelengths of the electromagnetic spectrum on excitation by an external energy source.