English Posts

Raman Spectroscopy of Minerals, Crystals and inorganic Salts

Abstract: in this article we describe the construction of a DIY Raman system, based on a 532 nm DPSS laser and a B&W Tek surplus spectrometer. A 90° configuration was chosen for the collection of scattered light, particularly suitable for the analysis of liquid samples. The system is equipped with optical fiber and sharp-edge filters for blocking the radiation from excitation laser. The system has been used for acquisition of the Raman spectra of numerous organic and inorganic substances.

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Polymer Analysis using Raman Spectroscopy

Abstract: in this article we describe the application of the Raman spectrometer (in backscattering configuration) to the analysis of plastic polymers with the aim of demonstrating the applicability of the tool to recognize the type of plastic. In the image above we show the Raman spectra of some plastic materials, …

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Backscattering Raman System

Abstract: in this article we describe the construction of a DIY Raman system, in backscattering configuration, based on a 532 nm DPSS laser and a B&W Tek surplus spectrometer.  The system is equipped with optical fiber and sharp-edge filters for blocking the radiation from excitation laser.

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Photosynthesis Pigments Spectroscopy

Abstract: in this post we describe the application of the SMA Thunder Optics spectrometer and the Spectragryph software to the spectroscopic analysis of the pigments responsible for the photosynthetic process, pigments found in all plant organisms (plants and algae).

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Thin Film Reflectometry

Abstract: in this post we describe the application of the spectrometer and the Spectragryph software in the reflectometry measurements of thin films. The light reflected by thin films, under certain conditions, presents the phenomenon of interference. This physical phenomenon can be used to study the optical properties of the thin film and to measure its thickness.

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Spectrophotometric Techniques

Abstract: in this post we describe the application of the SMA Thunder Optics spectrometer and the Spectragryph software in spectrophotometry measurements. We will apply spectrophotometric techniques to measure the concentration of a solute by measuring absorbance and fluorescence.

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Reflectance Spectroscopy & Colorimetry

Abstract: in this post we describe the application of the Thunder Optics SMA Spectrometer and the Spectragryph software in reflectance measurements. We will apply the reflectance spectroscopy technique to the study of some materials.

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Fluorescence Spectroscopy

Abstract: in this post we describe the application of the Thunder Optics spectrometer and the Spectragryph software in fluorescence measurements. We will apply the fluorescence spectroscopy technique to the study of some chemical compounds of particular importance and interest.

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Absorption Spectroscopy

Abstract: in this post we describe the application of the Thunder Optics spectrometer and the Spectragryph software in absorbance measurements. We will apply the absorption spectroscopy technique to the study of some liquid solutions of colored compounds.

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Transmission Spectroscopy

Abstract: in this post we describe the application of the Thunder Optics spectrometer and the Spectragryph software in transmittance measurements. We will apply the technique of transmission spectroscopy to the study of some optical filters.

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