[ { "image": "\/images\/articles\/confocal-spectrometric-telescope\/archives.jpg", "background-image": "\/images\/articles\/confocal-spectrometric-telescope\/banner.jpg", "link": "\/article\/confocal-spectrometric-telescope\/", "title": "Confocal Spectrometric Telescope", "description": "Watch the spectra of distant objects using a telescope? It's now possible with our open-source confocal spectrometric telescope!", "author": "Luc", "date": "28th of November 2024" }, { "image": "\/images\/articles\/fluorescence-spectroscopy\/archives.jpg", "background-image": "\/images\/articles\/fluorescence-spectroscopy\/banner.jpg", "link": "\/article\/fluorescence-spectroscopy\/", "title": "Fluorescence Spectroscopy", "description": "Open-Source Fluorescence Spectroscopy, how to create liquid white fluorescence and extracting the fluorescent dyes from pens!", "author": "Luc", "date": "30th of October 2024" }, { "image": "\/images\/articles\/openraman-cuvette-upgrade-fix\/archives.jpg", "background-image": "\/images\/articles\/openraman-cuvette-upgrade-fix\/banner.jpg", "link": "\/article\/openraman-cuvette-upgrade-fix\/", "title": "OpenRaman Cuvette Upgrade\/Fix", "description": "Materialise screwed up my parts! It's time for a fix in the workshop :) .NC program and STEP shared for reproduction!", "author": "Luc", "date": "1st of October 2024" }, { "image": "\/images\/articles\/diy-linear-translation-stages\/archives.jpg", "background-image": "\/images\/articles\/diy-linear-translation-stages\/banner.jpg", "link": "\/article\/diy-linear-translation-stages\/", "title": "DIY Linear Translation Stages", "description": "Ever wanted a 3-axis translation stage but couldn't afford Thorlabs or Newport prices? Here is the answer! all sort of 3d printed high performances stages!", "author": "Luc", "date": "9th of September 2024" }, { "image": "\/images\/articles\/diy-camera-test-bench-setup\/archives.jpg", "background-image": "\/images\/articles\/diy-camera-test-bench-setup\/banner.jpg", "link": "\/article\/diy-camera-test-bench-setup\/", "title": "DIY Camera Test Bench Setup", "description": "In this post, I show how an extremely cheap setup based on 3D printing technology can accurately evaluate the performances of cameras according to the EMVA 1288 standard.", "author": "Luc", "date": "9th of June 2024" }, { "image": "\/images\/articles\/the-perception-of-colors\/archives.jpg", "background-image": "\/images\/articles\/the-perception-of-colors\/banner.jpg", "link": "\/article\/the-perception-of-colors\/", "title": "The Perception of Colors", "description": "Have you ever wondered how we perceive colors and how we reproduce them on computer displays? Here, I give some open-source code to compute colored patch and synthetic spectral images from .csv spectra!", "author": "Luc", "date": "12th of May 2024" }, { "image": "\/images\/articles\/absorbance-spectroscopy\/archives.jpg", "background-image": "\/images\/articles\/absorbance-spectroscopy\/banner.jpg", "link": "\/article\/absorbance-spectroscopy\/", "title": "Absorbance Spectroscopy", "description": "Open-Source absorbance spectroscopy hardware and experimental discussion of the absorbance of copper chloride in different solvents!", "author": "Luc", "date": "7th of April 2024" }, { "image": "\/images\/articles\/working-with-gige-poe-cameras\/archives.jpg", "background-image": "\/images\/articles\/working-with-gige-poe-cameras\/banner.jpg", "link": "\/article\/working-with-gige-poe-cameras\/", "title": "Working with GigE PoE Cameras", "description": "Everything you always wanted to know about GigE PoE cameras: from a one camera setup to multiple cameras with multiple computers!", "author": "Luc", "date": "21st of February 2024" }, { "image": "\/images\/articles\/dynamic-range-analysis-of-a-350-700nm-spectrometer\/archives.jpg", "background-image": "\/images\/articles\/dynamic-range-analysis-of-a-350-700nm-spectrometer\/banner.jpg", "link": "\/article\/dynamic-range-analysis-of-a-350-700nm-spectrometer\/", "title": "Dynamic Range Analysis of a 350-700nm Spectrometer", "description": "Open-Source 350-700nm spectrometer design & analysis of the spectra dynamic range as a function of the slit size!", "author": "Luc", "date": "5th of February 2024" }, { "image": "\/images\/articles\/exploring-thorlabs-mtdeval-tec-driver\/archives.jpg", "background-image": "\/images\/articles\/exploring-thorlabs-mtdeval-tec-driver\/banner.jpg", "link": "\/article\/exploring-thorlabs-mtdeval-tec-driver\/", "title": "Exploring Thorlabs MTDEVAL TEC Driver", "description": "In this post we \"hack\" Thorlabs MTDEVAL1 board and software for a cheaper alternative!", "author": "Luc", "date": "6th of January 2024" }, { "image": "\/images\/articles\/tuning-thorlabs-cps532-laser-modes\/archives.jpg", "background-image": "\/images\/articles\/tuning-thorlabs-cps532-laser-modes\/banner.jpg", "link": "\/article\/tuning-thorlabs-cps532-laser-modes\/", "title": "Tuning Thorlabs CPS532 Laser Modes", "description": "Transform a cheap $150 Thorlabs laser into a high-performance 1k$+ one!", "author": "Luc", "date": "19th of May 2023" }, { "image": "\/images\/articles\/cni-mgl-iii-532-50mw-laser-review\/archives.jpg", "background-image": "\/images\/articles\/cni-mgl-iii-532-50mw-laser-review\/banner.jpg", "link": "\/article\/cni-mgl-iii-532-50mw-laser-review\/", "title": "CNI MGL-III-532-50mW Laser Review", "description": "Testing CNI MGL-III-532-50mW laser on OpenRaman!", "author": "Luc", "date": "11th of March 2023" }, { "image": "\/images\/articles\/laser-longitudinal-modes-tuning\/archives.jpg", "background-image": "\/images\/articles\/laser-longitudinal-modes-tuning\/banner.jpg", "link": "\/article\/laser-longitudinal-modes-tuning\/", "title": "Laser Longitudinal Modes Tuning", "description": "Check here how to tune your laser to boost its performances!", "author": "Luc", "date": "7th of January 2023" }, { "image": "\/images\/articles\/the-most-critical-step-in-openraman\/archives.jpg", "background-image": "\/images\/articles\/the-most-critical-step-in-openraman\/banner.jpg", "link": "\/article\/the-most-critical-step-in-openraman\/", "title": "The Most Critical Step in OpenRAMAN", "description": "All the secrets to ease up alignment of OpenRAMAN!", "author": "Luc", "date": "20th of December 2022" }, { "image": "\/images\/articles\/fiber-coupled-laser-update\/archives.jpg", "background-image": "\/images\/articles\/fiber-coupled-laser-update\/banner.jpg", "link": "\/article\/fiber-coupled-laser-update\/", "title": "Fiber-Coupled Laser Update", "description": "How to use an external laser in OpenRAMAN!", "author": "Luc", "date": "29th of October 2022" }, { "image": "\/images\/articles\/validating-methenamine-synthesis-using-raman-spectroscopy\/archives.jpg", "background-image": "\/images\/articles\/validating-methenamine-synthesis-using-raman-spectroscopy\/banner.jpg", "link": "\/article\/validating-methenamine-synthesis-using-raman-spectroscopy\/", "title": "Validating Methenamine Synthesis using Raman Spectroscopy", "description": "Is this synthesis correct? Check-out using low-cost Raman Spectroscopy!", "author": "Luc", "date": "7th of July 2022" }, { "image": "\/images\/articles\/solid-powder-raman-spectroscopy\/archives.jpg", "background-image": "\/images\/articles\/solid-powder-raman-spectroscopy\/banner.jpg", "link": "\/article\/solid-powder-raman-spectroscopy\/", "title": "Solid Powder Raman Spectroscopy", "description": "OpenRAMAN now with powders!", "author": "Luc", "date": "9th of April 2022" }, { "image": "\/images\/articles\/openraman-ld--amp--tec-drivers\/archives.jpg", "background-image": "\/images\/articles\/openraman-ld--amp--tec-drivers\/banner.jpg", "link": "\/article\/openraman-ld--amp--tec-drivers\/", "title": "OpenRAMAN LD & TEC Drivers", "description": "Complete 400 mA laser & TEC driver below 500€ for OpenRAMAN Performance Edition!", "author": "Luc", "date": "12th of February 2021" }, { "image": "\/images\/articles\/robust-calibration-method-for-spectrometers\/archives.jpg", "background-image": "\/images\/articles\/robust-calibration-method-for-spectrometers\/banner.jpg", "link": "\/article\/robust-calibration-method-for-spectrometers\/", "title": "Robust Calibration Method for Spectrometers", "description": "In this post I present the algorithm I developed for the automated calibration of spectra in OpenRAMAN.", "author": "Luc", "date": "11th of November 2020" }, { "image": "\/images\/articles\/thorlabs-mtd415te-tec-driver-review\/archives.jpg", "background-image": "\/images\/articles\/thorlabs-mtd415te-tec-driver-review\/banner.jpg", "link": "\/article\/thorlabs-mtd415te-tec-driver-review\/", "title": "Thorlabs MTD415TE TEC Driver Review", "description": "In this post I review the TEC driver MTD415 from Thorlabs. Very good chip for a low price!", "author": "Luc", "date": "10th of November 2020" }, { "image": "\/images\/articles\/thorlabs-ld1255r-laser-driver-review\/archives.jpg", "background-image": "\/images\/articles\/thorlabs-ld1255r-laser-driver-review\/banner.jpg", "link": "\/article\/thorlabs-ld1255r-laser-driver-review\/", "title": "Thorlabs LD1255R Laser Driver Review", "description": "Short review of Thorlabs LD1255R precision current laser driver. Spoiler alert: it overheats a LOT!", "author": "Luc", "date": "8th of November 2020" }, { "image": "\/images\/articles\/event-monitoring-in-c---using-evemon-exe\/archives.jpg", "background-image": "\/images\/articles\/event-monitoring-in-c---using-evemon-exe\/banner.jpg", "link": "\/article\/event-monitoring-in-c---using-evemon-exe\/", "title": "Event Monitoring in C++ Using EVEMON.EXE", "description": "How to implement event monitoring in your own C++ programs!", "author": "Luc", "date": "4th of September 2020" }, { "image": "\/images\/articles\/spectrum-analyzer-software-for-openraman\/archives.jpg", "background-image": "\/images\/articles\/spectrum-analyzer-software-for-openraman\/banner.jpg", "link": "\/article\/spectrum-analyzer-software-for-openraman\/", "title": "Spectrum Analyzer Software for OpenRAMAN", "description": "The official spectroscopy software for the OpenRAMAN project is there!", "author": "Luc", "date": "14th of August 2020" }, { "image": "\/images\/articles\/openraman-starter-edition\/archives.jpg", "background-image": "\/images\/articles\/openraman-starter-edition\/banner.jpg", "link": "\/article\/openraman-starter-edition\/", "title": "OpenRAMAN Starter Edition", "description": "OpenRAMAN first prototype is available! The perfect solution for teaching Raman spectroscopy at low costs!", "author": "Luc", "date": "17th of April 2020" }, { "image": "\/images\/articles\/openraman-spectrometer-efficiency\/archives.jpg", "background-image": "\/images\/articles\/openraman-spectrometer-efficiency\/banner.jpg", "link": "\/article\/openraman-spectrometer-efficiency\/", "title": "OpenRAMAN Spectrometer Efficiency", "description": "Measured efficiency is 45%! Great news!", "author": "Luc", "date": "2nd of March 2020" }, { "image": "\/images\/articles\/evidence-of-bisulfite-addition-to-aldehydes-using-raman-spectroscopy\/archives.jpg", "background-image": "\/images\/articles\/evidence-of-bisulfite-addition-to-aldehydes-using-raman-spectroscopy\/banner.jpg", "link": "\/article\/evidence-of-bisulfite-addition-to-aldehydes-using-raman-spectroscopy\/", "title": "Evidence of Bisulfite Addition to Aldehydes using Raman Spectroscopy", "description": "Does chemistry require faith ? Not anymore! Raman spectroscopy allows you to see into the reactions! Evidence of Bisulfite Addition to Aldehydes using Raman Spectroscopy", "author": "Luc", "date": "2nd of February 2020" }, { "image": "\/images\/articles\/proportionality-of-the-least-square-coefficients-in-raman-spectroscopy\/archives.jpg", "background-image": "\/images\/articles\/proportionality-of-the-least-square-coefficients-in-raman-spectroscopy\/banner.jpg", "link": "\/article\/proportionality-of-the-least-square-coefficients-in-raman-spectroscopy\/", "title": "Proportionality of the Least Square Coefficients in Raman Spectroscopy", "description": "Follow-up of the previous post on ethyl acetate kinetics! This time I checked how to correlates the coefficients of the LS method!", "author": "Luc", "date": "11th of January 2020" }, { "image": "\/images\/articles\/measuring-esterification-kinetics-using-raman-spectroscopy\/archives.jpg", "background-image": "\/images\/articles\/measuring-esterification-kinetics-using-raman-spectroscopy\/banner.jpg", "link": "\/article\/measuring-esterification-kinetics-using-raman-spectroscopy\/", "title": "Measuring Esterification Kinetics using Raman Spectroscopy", "description": "Measuring the kinetics of a >1 day organic reaction with OpenRAMAN? Challenge accepted!", "author": "Luc", "date": "28th of December 2019" }, { "image": "\/images\/articles\/understanding-least-squares-fitting\/archives.jpg", "background-image": "\/images\/articles\/understanding-least-squares-fitting\/banner.jpg", "link": "\/article\/understanding-least-squares-fitting\/", "title": "Understanding Least-Squares Fitting", "description": "Want to understand least squares fitting once and for all? Answer is here!", "author": "Luc", "date": "6th of December 2019" }, { "image": "\/images\/articles\/quantifying-methanol-in-ethanol-using-raman-spectroscopy\/archives.jpg", "background-image": "\/images\/articles\/quantifying-methanol-in-ethanol-using-raman-spectroscopy\/banner.jpg", "link": "\/article\/quantifying-methanol-in-ethanol-using-raman-spectroscopy\/", "title": "Quantifying Methanol in Ethanol using Raman Spectroscopy", "description": "Is OpenRAMAN able to quantify small amounts of methanol in ethanol? Answer is YES!", "author": "Luc", "date": "16th of November 2019" }, { "image": "\/images\/articles\/launching-openraman-diy-spectrometer--\/archives.jpg", "background-image": "\/images\/articles\/launching-openraman-diy-spectrometer--\/banner.jpg", "link": "\/article\/launching-openraman-diy-spectrometer--\/", "title": "Launching OpenRaman DIY Spectrometer !", "description": "Check-out our new DIY Raman website on http:\/\/www.open-raman.org with full assembly instructions!", "author": "Luc", "date": "29th of October 2019" }, { "image": "\/images\/articles\/some-diy-raman-spectra\/archives.jpg", "background-image": "\/images\/articles\/some-diy-raman-spectra\/banner.jpg", "link": "\/article\/some-diy-raman-spectra\/", "title": "Some DIY Raman Spectra", "description": "Some free Raman spectra with the final version of the breadboard! Check it out!", "author": "Luc", "date": "16th of August 2019" }, { "image": "\/images\/articles\/raman-setup-laser-upgrade-to-12-cm-1\/archives.jpg", "background-image": "\/images\/articles\/raman-setup-laser-upgrade-to-12-cm-1\/banner.jpg", "link": "\/article\/raman-setup-laser-upgrade-to-12-cm-1\/", "title": "Raman Setup Laser Upgrade to 12 cm-1", "description": "Raman Spectrometer is now as good as pro units! 12 cm-1 resolution measured on nitromethane and plenty of SNR!", "author": "Luc", "date": "26th of July 2019" }, { "image": "\/images\/articles\/raman-cuvette-upgrade\/archives.jpg", "background-image": "\/images\/articles\/raman-cuvette-upgrade\/banner.jpg", "link": "\/article\/raman-cuvette-upgrade\/", "title": "Raman Cuvette Upgrade", "description": "New cuvette holder for the Raman breadboard gives 4-fold signal improvement! SNR of ethanol peaks are now >1000:1!", "author": "Luc", "date": "17th of May 2019" }, { "image": "\/images\/articles\/raman-imaging-lens-upgrade\/archives.jpg", "background-image": "\/images\/articles\/raman-imaging-lens-upgrade\/banner.jpg", "link": "\/article\/raman-imaging-lens-upgrade\/", "title": "Raman Imaging Lens Upgrade", "description": "In this post I am upgrading the lens system of the spectrometer to increase the resolution to 0.15-0.20 nm which will later give peaks of 6 cm-1!", "author": "Luc", "date": "13th of April 2019" }, { "image": "\/images\/articles\/slit-distortion\/archives.jpg", "background-image": "\/images\/articles\/slit-distortion\/banner.jpg", "link": "\/article\/slit-distortion\/", "title": "Slit Distortion", "description": "Slits can change shape in spectrographs? Wow no way! Discovers here why!", "author": "Luc", "date": "7th of March 2019" }, { "image": "\/images\/articles\/slit-compression\/archives.jpg", "background-image": "\/images\/articles\/slit-compression\/banner.jpg", "link": "\/article\/slit-compression\/", "title": "Slit Compression", "description": "Slits can change size in spectrographs? Wow no way! Discovers here why!", "author": "Luc", "date": "2nd of March 2019" }, { "image": "\/images\/articles\/diy-raman-spectroscopy\/archives.jpg", "background-image": "\/images\/articles\/diy-raman-spectroscopy\/banner.jpg", "link": "\/article\/diy-raman-spectroscopy\/", "title": "DIY Raman Spectroscopy", "description": "Do-It-Yourself Raman spectrometer! Discover in this post how to build a Raman spectrometer with 35 cm-1 resolution with off-the-shelves elements.", "author": "Luc", "date": "14th of February 2019" }, { "image": "\/images\/articles\/choosing-the-best-camera-sensor-for-spectroscopy\/archives.jpg", "background-image": "\/images\/articles\/choosing-the-best-camera-sensor-for-spectroscopy\/banner.jpg", "link": "\/article\/choosing-the-best-camera-sensor-for-spectroscopy\/", "title": "Choosing the Best Camera Sensor for Spectroscopy", "description": "What is the best camera sensor to build a highly sensitive spectrophotometer ? Discover here!", "author": "Luc", "date": "21st of December 2018" }, { "image": "\/images\/articles\/resolution-in-spectroscopy\/archives.jpg", "background-image": "\/images\/articles\/resolution-in-spectroscopy\/banner.jpg", "link": "\/article\/resolution-in-spectroscopy\/", "title": "Resolution in Spectroscopy", "description": "What is resolution in spectroscopy exactly ? How is it different from the dispersive power or even the FWHM of the system ? How can one predict the exact effect of the slit size? Discover all these answers and many more!", "author": "Luc", "date": "8th of December 2018" }, { "image": "\/images\/articles\/400-800-nm-spectrometer-performances\/archives.jpg", "background-image": "\/images\/articles\/400-800-nm-spectrometer-performances\/banner.jpg", "link": "\/article\/400-800-nm-spectrometer-performances\/", "title": "400-800 nm Spectrometer Performances", "description": "In this post I present some simulation analysis on the performances on our custom 400-800 nm spectrometer using Ray Tracing software.", "author": "Luc", "date": "25th of August 2018" }, { "image": "\/images\/articles\/confocal-spectroscopy\/archives.jpg", "background-image": "\/images\/articles\/confocal-spectroscopy\/banner.jpg", "link": "\/article\/confocal-spectroscopy\/", "title": "Confocal Spectroscopy", "description": "In today's post I present a confocal spectrometer that allows you to get spectra at large distance. As illustration, I analyse the composition of a street lamp 50 meters away!", "author": "Luc", "date": "19th of April 2018" }, { "image": "\/images\/articles\/complete-400-800-nm-spectrometer-design-from-a-to-z\/archives.jpg", "background-image": "\/images\/articles\/complete-400-800-nm-spectrometer-design-from-a-to-z\/banner.jpg", "link": "\/article\/complete-400-800-nm-spectrometer-design-from-a-to-z\/", "title": "Complete 400-800 nm Spectrometer Design from A to Z", "description": "In this post I give a complete spectrometer design and assembly instructions to cover the 400 to 800 nm range with a resolution of 1 nm and a sensitivity of a few photons only.", "author": "Luc", "date": "23rd of March 2018" }, { "image": "\/images\/articles\/building-a-prism-monochromator\/archives.jpg", "background-image": "\/images\/articles\/building-a-prism-monochromator\/banner.jpg", "link": "\/article\/building-a-prism-monochromator\/", "title": "Building a Prism Monochromator", "description": "In this post, I build a monochromator from a prism to select an output wavelength with a bandwidth of 10 nm and I compare the result with a theoretical model.", "author": "Luc", "date": "13th of February 2018" }, { "image": "\/images\/articles\/achieving-high-performance-spectroscopy\/archives.jpg", "background-image": "\/images\/articles\/achieving-high-performance-spectroscopy\/banner.jpg", "link": "\/article\/achieving-high-performance-spectroscopy\/", "title": "Achieving High-Performance Spectroscopy", "description": "In this post we learn how optical aberrations affect the maximum achievable resolution and photon efficiency of a spectrometer design.", "author": "Luc", "date": "26th of January 2018" }, { "image": "\/images\/articles\/high-resolution-spectroscopy\/archives.jpg", "background-image": "\/images\/articles\/high-resolution-spectroscopy\/banner.jpg", "link": "\/article\/high-resolution-spectroscopy\/", "title": "High-Resolution Spectroscopy", "description": "In this post, I describe a spectrophotometer with a 0.01 nm resolution. It is then further applied to the study of lasing modes of a 532 nm NdYAG laser.", "author": "Luc", "date": "4th of November 2016" }, { "image": "\/images\/articles\/sensitivity-of-cmos-pixels\/archives.jpg", "background-image": "\/images\/articles\/sensitivity-of-cmos-pixels\/banner.jpg", "link": "\/article\/sensitivity-of-cmos-pixels\/", "title": "Sensitivity of CMOS Pixels", "description": "Ever wondered how sensitive CMOS pixels are? Discover the answer here and how it compares to standard high-performance photodiodes!", "author": "Luc", "date": "16th of November 2015" }, { "image": "\/images\/articles\/spectrophotometry-part--3--slr-lenses\/archives.jpg", "background-image": "\/images\/articles\/spectrophotometry-part--3--slr-lenses\/banner.jpg", "link": "\/article\/spectrophotometry-part--3--slr-lenses\/", "title": "Spectrophotometry Part #3: SLR Lenses", "description": "Building of a spectrophotometer can greatly benefits of modern SLR camera lenses. Here, we show how a 50 mm Nikkor SLR lens and an Olympus Plan microscopy objective modifies the quality of a neon spectrum compared to a conventional N-BK7 1" stock lens.", "author": "Luc", "date": "28th of December 2014" }, { "image": "\/images\/articles\/science-surplus-spectrophotometer-review\/archives.jpg", "background-image": "\/images\/articles\/science-surplus-spectrophotometer-review\/banner.jpg", "link": "\/article\/science-surplus-spectrophotometer-review\/", "title": "Science-Surplus Spectrophotometer Review", "description": "In this review we get a spectrophotometer from Science-Surplus on the trial.", "author": "Luc", "date": "31st of August 2014" }, { "image": "\/images\/articles\/building-a-visible-spectrophotometer\/archives.jpg", "background-image": "\/images\/articles\/building-a-visible-spectrophotometer\/banner.jpg", "link": "\/article\/building-a-visible-spectrophotometer\/", "title": "Construction of a 400-800 nm Spectrophotometer", "description": "Spectrophotometry is the study of the wavelengths composing visible light created or emerging from bodies and chemicals. In this post, I show how to build a spectrophotometer from optical components available online.", "author": "Luc", "date": "7th of July 2014" } ]