Tech Note: Raman Sample Coupling

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 […]

Fluorescence Limit of Detection: Benchtop & traditional "compact" vs WP

Tech Note: Fluorescence Limit of Detection

Fluorescence Limit of Detection: Benchtop & traditional "compact" vs WP

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) […]

Richard Rallison

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 […]

Ultimate Diffraction Grating

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 […]

World’s Fastest Spectrometers

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 […]

Getting All the Photons

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, […]