Transmission spectra of crystals at elevated temperatures for the calculation of internal radiant heat transport during crystal growth<BR>Part 1: The spectrometer and its performance by D. Schwabe, A. Polity

Crystal Research and Technology

Cryst. Res. Technol. 38, 868 (2003) - Abstract -

Transmission spectra of crystals at elevated temperatures for the calculation of internal radiant heat transport during crystal growth
Part 1: The spectrometer and its performance

D. Schwabe, A. Polity

I. Physics Institute, University of Giessen, 35392 Giessen, Germany

Keywords	transmission, high temperature measurement, measurement technique, Y3Al5O12
PACS	07.57.Ty, 42.70.Hj, 81.40.Tv
DOI	10.1002/crat.200310105

We report the construction, operation and performance of a transmission spectrometer for the visible to the IR (up to 3.5 μm wavelength) to measure crystals up to a temperature of 1400°C. The spectral resolution is almost comparable to that of a commercial spectrometer. The performance of the spectrometer and some problems are demonstrated by spectra of YAG : Nd at different temperatures.

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