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The greatest challenge in compact NIR spectroscopy is collecting enough signal to achieve adequate SNR (signal to noise ratio). With many spectrometers on the market, it’s hard to know which has the performance needed. Here, we benchmark the superior sensitivity, data quality, and reliability of our NIR spectrometers. InGaAs […]
How spectra came to probe the depths – the origin of OCT Ask anyone in optics how a spectrometer works and they can tell you – it separates a beam of light into its constituent colors or wavelengths for qualitative or quantitative analysis of the incoming light’s spectral composition. Spectrometers […]
Raman spectroscopy involves delivery of a high intensity of laser light to a very small focus, while simultaneously requiring sensitive detection of less than one-millionth the number of scattered photons. How that light is delivered to and collected from the sample has a significant impact in the quality of data […]
In this tech tip, we’ll explain how limit of detection (LOD) and limit of quantitation (LOQ) are defined and measured, walking you through the data analysis using our WP VIS fluorescence system as an example with fluorescein as the analyte. By using our own highly efficient volume phase holographic (VPH) […]
During the 70’s, Richard Rallison formed a company called “Electric Umbrella”. He made hologram apothecary jars and hologram glass discs that were used as key, chains, pendants and other forms of jewelry. He was a holography pioneer and successful. Electric Umbrella was a profitable and provided and income for Richard […]
Holograms are a novel way to optically manipulate light. In the early 70’s, Richard Rallison developed a process for making holograms using Dichromated gelatin (DCG). From this, he formed a company to produce various holographic images on 2″ glass disks. He was successful at this and became well known as a holography […]
80 years of volume phase holographic experience came together to form Wasatch Photonics (WP). From this, we developed “Ultimate Diffraction Gratings”. Spectroscopy was a natural extension of our grating business, so we opened our Durham facility to incorporate our gratings with an optimum optical design. This f 1.3 optical design paired […]
The invention of the laser, in 60’s, made real 3D holograms a reality. Holography was born in an era of science, rock and roll, hippies and art. The scientific development and the extreme 3D Imagery produced was exciting and sometimes intoxicating. Richard Rallison made his first hologram, in his kitchen, […]