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Related Concept Videos

Atomic Emission Spectroscopy: Instrumentation01:22

Atomic Emission Spectroscopy: Instrumentation

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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.
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Atomic Absorption Spectroscopy: Instrumentation01:22

Atomic Absorption Spectroscopy: Instrumentation

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An atomic absorption spectrophotometer (AAS) comprises several components: a radiation source, an atomizer, a monochromator, and a detector. The radiation source can be a hollow-cathode lamp (HCL) or an electrodeless-discharge lamp (EDL), both of which provide a narrow emission line of the required wavelength. However, some instruments use continuum sources and high-resolution monochromators to achieve a narrow range of radiation.
The atomizer used in AAS can be either a flame atomizer or an...
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Atomic Force Microscopy01:08

Atomic Force Microscopy

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Atomic force microscopy (AFM) is a type of scanning probe microscopy that can analyze topographic details of various specimens like ceramics, glass, polymers, and biological samples. AFM offers over 1000 times more resolution than the optical imaging system. Images generated from AFM are three-dimensional surface profiles, offering an advantage over the flat, two-dimensional images from other imaging techniques.
The AFM Probe
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Atomic Emission Spectroscopy: Interference01:30

Atomic Emission Spectroscopy: Interference

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In atomic emission spectroscopy (AES), high-temperature atomizers excite a broad range of elements and molecules that generate complex emissions from sources such as oxides, hydroxides, and flame combustion products in the flame or plasma. Several strategies can be employed to minimize spectral interferences caused by overlapping emission lines or bands. These include increasing instrument resolution, choosing alternative emission lines, optimally placing the detector in low-background regions,...
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Atomic Absorption Spectroscopy: Atomization Methods01:25

Atomic Absorption Spectroscopy: Atomization Methods

708
Atomic Absorption Spectroscopy (AAS) atomizes samples through flame atomization or electrothermal atomization. Flame atomization typically involves a nebulizer and spray chamber assembly to combine the sample with a fuel–oxidant mixture, creating a fine aerosol mist that enters a burner. Typically, the fuel and oxidant are combined in an approximately stoichiometric ratio. However, for atoms that are easily oxidized, a fuel-rich mixture may be more advantageous. Only about 5% of the...
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Related Experiment Video

Updated: Oct 2, 2025

The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry
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Simple and robust architecture of a laser system for atom interferometry.

Sumit Sarkar, Raphaël Piccon, Sébastien Merlet

    Optics Express
    |February 25, 2022
    PubMed
    Summary

    We developed a versatile laser system for advanced atom interferometry, enabling techniques like Bragg diffraction and Bloch oscillations with high precision. This robust setup supports multiple advanced atomic physics experiments.

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    Area of Science:

    • Atomic Physics
    • Quantum Optics
    • Laser Spectroscopy

    Background:

    • Atom interferometry requires precise laser control for advanced techniques.
    • Existing laser systems can be complex and lack versatility.

    Purpose of the Study:

    • To report a compact and robust laser system architecture.
    • To enable multiple advanced atom interferometry techniques using a single system.

    Main Methods:

    • A tunable fiber laser (1560 nm) seeded a system of amplifiers and second-harmonic generators.
    • Phase-locked, frequency-controllable laser beams at 780 nm were produced.
    • Frequency manipulation at 1560 nm allowed ± 20 MHz detuning with constant power.

    Main Results:

    • Demonstrated a versatile laser system for Bragg diffraction, Bloch oscillations, and Raman diffraction.
    • Achieved precise frequency control and stable output power.
    • Successfully realized Ramsey-Raman and Bragg interferometers.

    Conclusions:

    • The developed laser system is compact, robust, and versatile.
    • It facilitates advanced atom interferometry techniques with high performance.
    • The system offers advantages for Raman spectroscopy and other atomic physics applications.