NIST Researchers Turn to Cryogenic Radiometer
Scientists at the
National Institute of Science and Technology (NIST) have constructed a laser power and energy measurement system based on a cryogenic radiometer.
Since the 1960s, the institute has built and maintained electrically calibrated calorimeters to calibrate laser power and energy detectors. The current generation of calorimeters has an uncertainty standard of 0.25 percent because they operate at room temperature. The new system is based on an electrically calibrated cryogenic radiometer operating near liquid helium temperatures. The uncertainty standard is gauged at 0.02 percent or less.
LATEST NEWS
- Exail Signs LLNL Contract, Partners with Eelume
Apr 26, 2024
- Menlo Moves U.S. HQ: Week in Brief: 4/26/2024
Apr 26, 2024
- Optofluidics Platform Keys Label-, Amplification-Free Rapid Diagnostic Tool
Apr 25, 2024
- DUV Lasers Made with Nonlinear Crystals Enhance Lithography Performance
Apr 25, 2024
- Teledyne e2v, Airy3D Collaborate on 3D Vision Solutions
Apr 24, 2024
- One-Step Hologram Generation Speeds 3D Display Creation
Apr 24, 2024
- Innovation Award Winners for Laser Technology Honored in Aachen
Apr 23, 2024
- Intech 2024: AI Arrives on the Shop Floor
Apr 22, 2024