Resonance fluorescence is the process in which a two-level atom system interacts with the quantum electromagnetic field if the field is driven at a frequency near to the natural frequency of the atom.
What is meant by resonance fluorescence?
What is non resonance fluorescence?
Nonresonance fluorescence denotes the case where the excitation and fluorescence wavelengths are different. The latter excitation/detection approach offers the advantage of allowing scattered radiation from the excitation beam to be easily separated from the fluorescence.
What is resonance transition?
A change in the energy state of an atom, involving an electron jump from the ground state to a higher energy level, leading to excitation, or a return to the ground state from an excited state. This produces a resonant absorption or emission line in a spectrum.
What is fluorescence and its types?
Fluorescence is simply defined as the absorption of electromagnetic radiation at one wavelength and its reemission at another, lower energy wavelength. Thus any type of fluorescence depends on the presence of external sources of light.
What is meant by fluorescence analysis?
Fluorescence spectroscopy analyzes fluorescence from a molecule based on its fluorescent properties. … Fluorescence spectroscopy uses a beam of light that excites the electrons in molecules of certain compounds, and causes them to emit light.
What is resonance frequency?
Resonant frequency is the oscillation of a system at its natural or unforced resonance. Resonance occurs when a system is able to store and easily transfer energy between different storage modes, such as Kinetic energy or Potential energy as you would find with a simple pendulum.
What is resonant and non resonant scattering?
Non-resonance Raman scattering occurs when the radiation interacts with a molecule resulting in polarization of the molecule's electrons. … Resonance Raman scattering occurs in a similar fashion. However, the incident radiation is at a frequency near the frequency of an electronic transition of the molecule of interest.
What is resonance line in spectroscopy?
a spectral line of the radiation from an atom at a frequency that coincides with the frequency of the light absorbed by the atom in its ground state. The term “resonance line” is usually applied to one or more of the strongest lines in the spectrum of resonance radiation.
What is the principle of fluorescence?
Fluorescence describes a phenomenon where light is emitted by an atom or molecule that has absorbed light or electromagnetic radiation from another source. In absorption, high energy light excites the system, promoting electrons within the molecule to transition from the ground state, to an excited state.