Development of Low-Cost Multi-Channel Polychromator with a Single Interference Filter for 2D Thomson Scattering Measurement System

Abstract

We have developed a cost-effective polychromator that uses the Angles of Incidence (AoI) to its advantage to bring the number of interference filters needed for 3 channels down to 1. Our polychromator can cover wavelengths from 1040 nm to 1060 nm while needing just 1 interference filter, which typically is the costliest component of a polychromator.