Your Open-Source Raman Spectrometer

OpenRAMAN

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Applications

Applications

Evidence of Bisulfite Addition to Aldehydes using Raman Spectroscopy

One of the main reasons I started working on Raman spectroscopy was the ability to actually observe what was going on during a reaction. Some folk told me one day that chemistry was all about faith: you mix two compounds and even if you don’t see anything you have to Read more…

By Luc, 1 year1 year ago
Applications

Proportionality of the Least Square Coefficients in Raman Spectroscopy

I recently shared some results about measuring the kinetics of the ethyl acetate reaction. At the time, I was not entirely satisfied by the results due to the fact that I didn’t know what was the exact relation between the returned coefficients of the least square method and the actual Read more…

By Luc, 1 year1 year ago
Applications

Measuring Esterification Kinetics using Raman Spectroscopy

Two weeks ago I presented a global methodology to quantitatively decompose the spectra of mixtures into their respective components providing that their raw spectra were known (aka measured separately). Today I’m presenting some experimental results based on this technique to measure the kinetics of a well-known organic reaction: the esterification Read more…

By Luc, 1 year ago
Applications

Quantifying Methanol in Ethanol using Raman Spectroscopy

There is no doubt that Raman spectroscopy is an extremely powerful tool for the amateur to confirm the identity of a chemical compound that was synthesized. In this post I will show that our DIY Raman spectrometer is also able to deliver quantitative results with a high accuracy. More precisely, Read more…

By Luc, 1 year1 year ago
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Recently Added
  • Robust Calibration Method for Spectrometers November 12, 2020
  • Event Monitoring in C++ Using EVEMON.EXE September 5, 2020
  • OpenRAMAN Spectrometer Efficiency March 3, 2020
  • Evidence of Bisulfite Addition to Aldehydes using Raman Spectroscopy February 3, 2020
  • Proportionality of the Least Square Coefficients in Raman Spectroscopy January 12, 2020
Luc@OpenRAMAN·
14 Feb

Major update on http://open-raman.org! http://www.open-raman.org/build/performance-edition/

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Luc@OpenRAMAN·
13 Feb

400 mA LD & TEC driver circuit! Total cost <500€; remote switch, interlock, and slow-start circuit. Took me 2 years but it finally works! Open-Source design with Gerber files included http://www.thepulsar.be/article/openraman-ld--amp--tec-drivers/

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Luc@OpenRAMAN·
12 Nov

New post on robust calibration procedure for spectrometers! http://www.thepulsar.be/article/robust-calibration-method-for-spectrometers

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Luc@OpenRAMAN·
11 Nov

Just posted a review of @Thorlabs TEC driver! Great Chip! http://www.thepulsar.be/article/thorlabs-mtd415te-tec-driver-review

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Luc@OpenRAMAN·
9 Nov

Just posted a review of @Thorlabs LD1255R precision current laser driver. Not as great as I expected! http://www.thepulsar.be/article/thorlabs-ld1255r-laser-driver-review

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