1. For quality control in high volume manufacturing of thin layers and for tracking of fast physical and chemical processes, fast ellipsometry is a common measurement technology. For such kinds of applications we present a novel approach of fast ellipsometric measurements. Instead of a conventional setup that uses a standard photo-elastic modulator, we use a 92 kHz Single Crystal Photo-Elastic Modulator. This small, simple, and cost-effective solution also offers the advantage of direct control of the retardation via the current amplitude.
COBISS.SI-ID: 11554331
An experimental and computational investigation of the dynamics in singly Er-doped and Er/Pr-codoped double-clad fluoride fiber lasers that are pulse-pumped with diode at 975 nm is presented. Measurements that include time-dependent laser power and spectrum show multi-line operation with distinct initial line jumping in the Er fiber and spectral and power fluctuations in both fibers.
COBISS.SI-ID: 2298724