Related Experiment Video
Updated: Jun 12, 2026

Applying X-ray Imaging Crystal Spectroscopy for Use as a High Temperature Plasma Diagnostic
Published on: August 25, 2016
Spectroscopy of BeAl(2)O(4):Cr(3+) with application to high-temperature sensing
Devin Pugh-Thomas1, Brian M Walsh, Mool C Gupta
1Department of Electrical and Computer Engineering, University of Virginia,Charlottesville, Virginia 22904, USA.
Abstract:
Characterization of absorption, emission, and temperature-dependent luminescent features is of significant interest for the development of optical temperature sensors and photonic devices. In this work, we conduct a comprehensive study to evaluate the orientation axis-dependent absorption and emission cross sections of Cr(3+) ions in BeAl(2)O(4). In addition, we present new data for the temperature-dependent Stark-level energies for alexandrite. Laser-induced temperature-dependent luminescence data from 300-520K on the R-line transitions are presented for application to high-temperature sensing.
Related Concept Videos
IR Spectroscopy: Molecular Vibration Overview
Stretching vibrations are vibrational motions that occur along the bond line, changing the bond length or distance between two bonded atoms. They are further distinguished as symmetric or asymmetric. In symmetric stretching, the...
Infrared (IR) Spectroscopy: Overview
Different compounds display unique properties due to their...
IR Spectrometers
Atomic Spectroscopy: Effects of Temperature
At thermal equilibrium, the relative populations of excited and ground state atoms can be estimated using the Maxwell–Boltzmann distribution. For example, an increase in temperature from...
Applications of IR Spectroscopy: Overview
Atomic Emission Spectroscopy: Instrumentation

