Optical characteristics of novel bulk and nanoengineered laser host materials

Narasimha S. Prasad; Stacey Sova; Lisa Kelly; Talon Bevan; Bradley Arnold; Christopher Cooper; Fow-Sen Choa; N. B. Singh

doi:10.1117/12.2295994

23 February 2018 Optical characteristics of novel bulk and nanoengineered laser host materials

Narasimha S. Prasad, Stacey Sova, Lisa Kelly, Talon Bevan, Bradley Arnold, Christopher Cooper, Fow-Sen Choa, N. B. Singh

Author Affiliations +

Proceedings Volume 10533, Oxide-based Materials and Devices IX; 1053320 (2018) https://doi.org/10.1117/12.2295994
Event: SPIE OPTO, 2018, San Francisco, California, United States

Abstract

The hexagonal apatite single crystals have been investigated for their applications as laser host materials. Czochralksi and flux growth methods have been utilized to obtain single crystals. For low temperature processing (<100 ⁰C), several techniques for crystal growth have been developed. The hexagonal apatite structure (space group P⁶3/m) is characteristic of several compounds, some of which have extremely interesting and useful properties as laser hosts and bone materials. Calcium lanthanum silicate (Nd-doped) and lanthanum aluminate material systems were studied in detail. Nanoengineered calcium and lanthanum based silicates were synthesized by a solution method and their optical and morphological characteristics were compared with Czochralski grown bulk hydroxyapatite single crystals. Materials were evaluated by absorbance, fluorescence and Raman characteristics. Neodymium, iron and chromium doped crystals grown by a solution method showed weak but similar optical properties to that of Czochralski grown single crystals.

Citation Download Citation

Narasimha S. Prasad, Stacey Sova, Lisa Kelly, Talon Bevan, Bradley Arnold, Christopher Cooper, Fow-Sen Choa, and N. B. Singh "Optical characteristics of novel bulk and nanoengineered laser host materials", Proc. SPIE 10533, Oxide-based Materials and Devices IX, 1053320 (23 February 2018); https://doi.org/10.1117/12.2295994

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