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Related Concept Videos

Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation01:26

Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation

Inductively coupled plasma (ICP) is the common plasma source used in atomic emission spectroscopy (AES), a technique that detects and analyzes various elements in a sample. This method is often called inductively coupled plasma atomic emission spectroscopy (ICP-AES).
There are three main types of inductively coupled plasma atomic emission spectroscopy  (ICP-AES) instruments: sequential, simultaneous multichannel, and Fourier transform instruments, with the latter being less commonly used.
Atomic Emission Spectroscopy: Lab01:29

Atomic Emission Spectroscopy: Lab

AES is a powerful analytical technique, especially effective when used with plasma sources, producing abundant spectra in characteristic emission lines. The Inductively Coupled Plasma (ICP), in particular, yields superior quantitative analytical data due to its high stability, low noise, low background, and minimal interferences under optimal experimental conditions. However, newer air-operated microwave sources are emerging as promising alternatives that could be more cost-effective than...
Atomic Emission Spectroscopy: Overview01:20

Atomic Emission Spectroscopy: Overview

Atomic emission spectroscopy (AES) is an analytical technique used to determine the elemental composition of a sample by analyzing the light emitted from excited atoms. In AES, atoms in a sample are excited to higher energy levels by thermal energy from high-temperature sources, such as plasma, arcs, or sparks. When these excited atoms return to lower energy states, they emit light at specific wavelengths characteristic of each element. The resulting atomic emission spectrum, which consists of...
Atomic Emission Spectroscopy: Instrumentation01:22

Atomic Emission Spectroscopy: Instrumentation

The instrumentation of atomic emission spectrometry (AES) involves various components, including atomization devices that convert samples into gas-phase atoms and ions. There are two main types of atomization devices: continuous and discrete atomizers.  Continuous atomizers, like plasmas and flames, introduce samples in a constant stream, while discrete atomizers inject individual samples using syringes or autosamplers. The most common discrete atomizer is the electrothermal atomizer.
Inductively Coupled Plasma Atomic Emission Spectroscopy: Principle01:19

Inductively Coupled Plasma Atomic Emission Spectroscopy: Principle

Inductively coupled plasma (ICP) is the most widely used plasma source in atomic emission spectroscopy (AES), also known as Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES). The ICP source, or torch, consists of three concentric quartz tubes with argon gas flowing through them. A spark from a Tesla coil initiates the ionization of argon, generating a high-temperature plasma.
The ions and electrons produced interact with the fluctuating magnetic field created by a water-cooled...
Photoluminescence: Fluorescence and Phosphorescence01:23

Photoluminescence: Fluorescence and Phosphorescence

Photoluminescence is a process where a molecule absorbs light energy and re-emits it in the form of light. This phenomenon occurs when a substance absorbs photons, promoting its electrons to higher energy level excited states, followed by a relaxation process in which the electrons return to their original ground state energy levels and emit light. Photoluminescence is widely observed in various materials, including semiconductors, and organic and inorganic compounds.
A pair of electrons in a...

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Updated: May 13, 2026

High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy
10:40

High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy

Published on: June 28, 2016

Plasmon enhanced spectroscopy.

Ricardo F Aroca1

  • 1Department of Chemistry and Biochemistry, University of Windsor, Windsor, Ontario, Canada. raroca1@cogeco.ca

Physical Chemistry Chemical Physics : PCCP
|March 16, 2013
PubMed
Summary
This summary is machine-generated.

Surface-enhanced Raman scattering (SERS) allows ultrasensitive chemical detection using metallic nanostructures. This technique has significantly driven the development of plasmonics, a field of optical science.

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Area of Science:

  • Optics and Photonics
  • Materials Science
  • Analytical Chemistry

Background:

  • Surface-enhanced spectroscopy, including surface-enhanced Raman scattering (SERS), utilizes optical techniques.
  • SERS enables ultrasensitive detection of single molecules with high specificity.
  • The observation of SERS is fundamentally linked to the presence of metallic nanostructures.

Purpose of the Study:

  • To provide a historical overview of surface-enhanced spectroscopy.
  • To highlight the symbiotic relationship between SERS and plasmonics.
  • To trace the evolution from surface-enhanced spectroscopy to plasmon-enhanced spectroscopy.

Main Methods:

  • Review of linear and nonlinear optical techniques.
  • Discussion of the principles behind surface-enhanced Raman scattering.
  • Exploration of the role of metallic nanostructures and plasmonics.

Main Results:

  • SERS provides molecular fingerprint specificity for chemical sensing.
  • Metallic nanostructures are essential for SERS.
  • SERS has been a primary driver for the advancement of plasmonics.

Conclusions:

  • The discovery of SERS was pivotal in the development of plasmonics.
  • Surface-enhanced spectroscopy has broad applications in chemical sensing.
  • The field has evolved from surface-enhanced to plasmon-enhanced spectroscopy.