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Related Concept Videos

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.
Atomic Absorption Spectroscopy: Atomization Methods01:25

Atomic Absorption Spectroscopy: Atomization Methods

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 aerosol...
Photoluminescence: Applications01:14

Photoluminescence: Applications

Photoluminescence offers a wide range of applications due to its inherent sensitivity and selectivity. This technique allows for both direct and indirect analyses of the analyte. Direct quantitative analysis is possible when the analyte exhibits a favorable quantum yield for fluorescence or phosphorescence. However, an indirect analysis may be feasible if the analyte is not fluorescent or phosphorescent, or if the quantum yield is unfavorable. Indirect methods include reacting the analyte with...
Atomic Absorption Spectroscopy: Radiation and Light Sources01:13

Atomic Absorption Spectroscopy: Radiation and Light Sources

Atomic absorption spectroscopy (AAS) relies on the Beer-Lambert law, which requires that the radiation source emits a narrow range of wavelengths to match the absorption characteristics of the analyte atom. The primary criteria for choosing an appropriate radiation source in AAS is to provide a precise and intense emission at specific wavelengths that will allow accurate detection of the analyte.
Two common narrow-range 'line' sources used in AAS are hollow-cathode lamps (HCLs) and...
Atomic Spectroscopy: Absorption, Emission, and Fluorescence01:23

Atomic Spectroscopy: Absorption, Emission, and Fluorescence

Atomic spectroscopy is a vital tool in elemental analysis, both qualitatively and quantitatively. It can be broadly divided into optical spectroscopy, mass spectroscopy, and X-ray spectroscopy methods. The optical spectroscopic methods are atomic absorption spectroscopy (AAS), atomic emission spectroscopy (AES), and atomic fluorescence spectroscopy (AFS). The first step in all three methods is atomization, where the solid, liquid, or solution-phase samples are converted into gas-phase atoms and...
Atomic Fluorescence Spectroscopy01:29

Atomic Fluorescence Spectroscopy

Atomic fluorescence spectroscopy (AFS) is an analytical technique that involves the electronic transitions of atoms in a flame, furnace, or plasma being excited by electromagnetic (EM) radiation. When these atoms absorb energy, they become excited and subsequently release energy as they return to their original state. This emitted light, or "fluorescence," is observed at a right angle to the incident beam. Both absorption and emission processes transpire at distinct wavelengths, which are...

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Related Experiment Video

Updated: Jun 23, 2026

Microfluidic Imaging Flow Cytometry by Asymmetric-detection Time-stretch Optical Microscopy (ATOM)
07:19

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Published on: June 28, 2017

Applications of spatial light modulators in atom optics.

David McGloin, G Spalding, H Melville

    Optics Express
    |May 23, 2009
    PubMed
    Summary

    Spatial light modulators (SLMs) enable diverse optical potentials for atom optics, facilitating atom guiding and trapping. This technology shows promise but faces limitations in generating complex and dynamic potentials.

    Area of Science:

    • Atomic, Molecular, and Optical Physics
    • Quantum Optics
    • Nanotechnology

    Background:

    • Atom optics utilizes light to manipulate neutral atoms.
    • Spatial Light Modulators (SLMs) offer dynamic control over light wavefronts.
    • Precisely shaped optical potentials are crucial for atom manipulation.

    Purpose of the Study:

    • To explore the application of SLMs in generating optical potentials for atom optics.
    • To demonstrate the versatility of SLMs for creating various atom-trapping configurations.
    • To identify current technological limitations of SLMs in this field.

    Main Methods:

    • Utilizing a single SLM device to generate multiple optical potential patterns.
    • Implementing SLM-based wavefront shaping to create specific light potentials.

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    Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving
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    Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving

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    Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator
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  • Characterizing generated potentials, including Mach-Zehnder interferometer patterns and bottle-beams.

    • Main Results:

    • SLMs successfully generated diverse optical potentials for atom manipulation.
    • Demonstrated capability to produce complex interference patterns and bottle-beams.
    • Confirmed the utility of SLMs for guiding and dipole trapping of atoms.

    Conclusions:

    • SLMs are a powerful tool for creating versatile optical potentials in atom optics.
    • The technology allows for flexible generation of static and dynamic atom traps.
    • Further advancements in SLM technology are needed to overcome current limitations for advanced atom optics applications.