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News about optics, light, optical analysis technology

and much more.

Hyperspectral and multispectral imaging

Hyperspectral imaging (HSI) and multispectral imaging (MSI) are optical spectroscopy imaging techniques. They have gained importance in the last years in the world of spectroscopy, but do you really know in what they consist? In this post, we will define them, explain the different types of acquisition systems that are employed and describe their main elements, as well as mentioning their applications.

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Michelson interferometer diagram

Fiber optic interferometers

Fiber optic interferometers are employed to measure different physical magnitudes such as temperature, strain, pressure or refractive index. In this post we will explain the basics of interferometry and the different types of existing interferometers: Michelson, Fabry-Perot, Sagnac, Mach-Zehnder, Moiré, the modal interferometer and white light interferometry.

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The speed of light controversy

In this post we will briefly explain the historical evolution in determining the speed of light (c) and the different scientists that played a role in it, from when it was considered that the speed of light was infinite to when its value was accurately calculated and standardized.

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Why is the sky blue?

The question in the title may seem trivial, as it is a question that sooner or later, almost every kid asks. However, the answer is not so straightforward and the work of several scientists was needed in order to give an adequate response. In this post, we will shed light on one of the questions that has troubled parents through generations.

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Fiber optic gas sensors

A lot of effort has been dedicated during the past decades to the detection of gaseous species. Precise and rapid detection of minute gas concentrations

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Nanoparticles Matter

It is several decades since the speech given by Dr. Feynmann at Caltech in 1959 where he pointed out the possibilities of nanotechology [1]. Since

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Optical fiber refractometers

 In this post, some basic concepts about optical fiber refractometers will be briefly explained, including their function, the different existing types and some of the main

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