Hg2Cl2 crystals for efficient birefringence etalon filters

Autor: Walter M. B. Duval, W. Rosch, Narsingh B. Singh, R.H Hopkins, Sam R. Coriell, T. Henningsen, R. Mazelsky, D. Suhre
Rok vydání: 1999
Předmět:
Zdroj: Journal of Crystal Growth. :995-998
ISSN: 0022-0248
DOI: 10.1016/s0022-0248(98)01211-1
Popis: We have experimentally demonstrated the physical vapor transport growth of 30 mm diameter and 8 cm long mercurous chloride crystals for birefringence etalon filters. The 〈1 1 0〉 oriented seeded crystals were grown in a two zone vertical transparent furnace by vapor phase transport method. Two 5 mm and 1.5 mm thick filters were fabricated and tested interferometrically and with a spectrometer. The filter exhibited the spectral modulation expected based on the filter thickness. The effect of temperature on filter performance was studied by measuring the filter operation at specific calibrated temperatures. We observed a significant shift in filter wavelength at 25.8°C and 29.8°C.
Databáze: OpenAIRE