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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.
IR Spectrometers01:25

IR Spectrometers

There are two main infrared (IR) spectrophotometers: dispersive IR spectrometers and Fourier transform infrared (FTIR) spectrometers. In a dispersive IR spectrometer, a beam of infrared radiation produced by a hot wire is divided into two parallel equal-intensity beams using mirrors. One beam passes through the sample, while another is a reference beam. The beams then move through the monochromator, which separates the radiations into a continuous spectrum of different frequencies. The...
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...

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Updated: Jun 8, 2026

Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures
08:01

Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures

Published on: November 21, 2019

Stellar speckle camera for spectroscopy.

N Baba, S Kuwamura, Y Norimoto

    Applied Optics
    |October 14, 2010
    PubMed
    Summary
    This summary is machine-generated.

    A new stellar speckle spectrometer uses synchronized detectors and a reflection grating. This instrument achieves diffraction-limited spectral resolution, enabling detailed stellar observations.

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    Published on: August 5, 2009

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    Published on: November 21, 2019

    Live Cell Imaging of F-actin Dynamics via Fluorescent Speckle Microscopy (FSM)
    19:16

    Live Cell Imaging of F-actin Dynamics via Fluorescent Speckle Microscopy (FSM)

    Published on: August 5, 2009

    Area of Science:

    • Astronomy
    • Spectroscopy
    • Optical Instrumentation

    Background:

    • Stellar spectroscopy is crucial for understanding celestial objects.
    • High-resolution spectroscopy is limited by atmospheric turbulence and instrument design.
    • Speckle interferometry techniques can overcome atmospheric limitations.

    Purpose of the Study:

    • To develop a novel stellar speckle spectrometer with enhanced performance and flexibility.
    • To achieve diffraction-limited spectral resolution for astronomical observations.
    • To demonstrate the capabilities of the new instrument through preliminary results.

    Main Methods:

    • Development of a new stellar speckle spectrometer.
    • Utilizing two synchronized detectors to capture dispersed speckle patterns and specklegrams simultaneously.
    • Employing a reflection grating as the primary disperser.

    Main Results:

    • Successful acquisition of stellar spectra with diffraction-limited spatial resolution.
    • Demonstration of simultaneous recording of dispersed speckle patterns and specklegrams.
    • Presentation of preliminary observational data validating the instrument's performance.

    Conclusions:

    • The newly developed stellar speckle spectrometer offers improved performance and flexibility.
    • The instrument successfully achieves diffraction-limited spectral resolution.
    • The preliminary results indicate the potential for advanced stellar spectral analysis.