The Infrared Spectrometer – Part 3
May 15, 2025
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Introduction In Part 2 of this article on the development of the infrared spectrometer, I covered the basic details of the Fourier transform version of
Freedom from DOS at Last!
May 27, 2023
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In a previous post I described one of the “workhorses” I have been using for several years for recording spectra. This is the Oriel MS125
Light Sources for Calibrating Spectrometers
September 29, 2022
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The calibration of spectra in wavelength λ that you will see in these different posts has usually been performed with commercial “pencil-type” spectral lamps of
Spectrometer Calibration
September 14, 2022
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Introduction Modern spectrometers today, regardless of their size, employ sensitive linear CCD and CMOS sensors. The most popular sizes have 1024, 2048 and more recently
Spectrometer Designs
September 3, 2022
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Introduction The development of the spectroscope over the last 160 years since its invention has paralleled the evolution in technological advances. This is particularly the
FICS -Fixed Imaging Compact Spectrograph
June 17, 2022
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Introduction As its name implies, this spectrometer has a fixed diffraction grating. So the wavelength range available and the resolving power (the spectral resolution) are
MS125 and InstaSpec IV Combination
June 2, 2022
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Introduction MS125 This is a very versatile spectrograph that I have used over the years to record a variety of spectra from various emission sources,
Homemade Spectrometers (Part II)
May 11, 2022
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Introduction This post describes some construction details for an improved version of the SGS spectrometer in what I called the MFSS or Multiple Fixed Slit
Homemade Spectrometers (Part I)
April 28, 2022
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A few years ago I built a couple of diffraction grating spectrographs. At that time I was a keen amateur astronomer with some degree of
Some Early Stellar Spectra
April 16, 2022
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Introduction Several years ago I connected the MS125 spectrometer to a 12 inch Meade LX200 telescope to test its suitability for recording stellar spectra. In