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The absorbance of UV and visible (UV–visible) radiations is measured using a UV–visible spectrophotometer. Deuterium lamps, which emit UV radiation, and tungsten lamps, which produce radiation in the visible region, are used as light sources in UV–visible spectrophotometers. A monochromator or prism is used for diffraction grating, i.e., to split the incoming radiation into different wavelengths. A system of slits is used to focus the desired wavelength on the sample cell. Samples for...

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High Speed Sub-GHz Spectrometer for Brillouin Scattering Analysis

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Small LiF Prism Spectrometer for Space Applications.

H W Moos, R C Vitz, J R Barry

|January 16, 2010

Summary

This summary is machine-generated.

A compact Czerny-Turner spectrometer using a LiF prism offers superior vacuum ultraviolet transmission for space missions. Its small size, light weight, and stable performance make it ideal for planetary astronomy and airglow studies.

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Area of Science:

Spectroscopy
Optical Engineering
Planetary Science

Background:

Traditional Ebert spectrometers have limitations in vacuum ultraviolet (VUV) transmission.
Compact and lightweight instruments are crucial for space missions.

Purpose of the Study:

To describe a novel LiF prism constant deviation spectrometer.
To evaluate its performance for VUV applications, particularly in space.

Main Methods:

Design and construction of a Czerny-Turner spectrometer utilizing a LiF prism.
Measurement of transmission in the VUV range.
Assessment of spectral resolution and wavelength stability.

Main Results:

The LiF prism spectrometer exhibits at least twice the VUV transmission of typical Ebert spectrometers.
The instrument is compact (17 cm x 10 cm x 7 cm) and lightweight (850 g without drive).
High wavelength stability (±1 Å) and a spectral resolution of 16 Å at 1216 Å were achieved.

Conclusions:

The developed spectrometer is a viable, high-performance alternative for VUV spectroscopy in space missions.
Its compact and rugged design is well-suited for planetary astronomy, airglow experiments, and interplanetary missions.