Luminescence of Ho-doped lithium niobate crystals highlighted by Raman spectroscopy

N. Kokanyan; E. Kokanyan; N. Babajanyan; T. Kauffmann; M. D. Fontana

doi:10.1117/12.2318550

4 September 2018 Luminescence of Ho-doped lithium niobate crystals highlighted by Raman spectroscopy

N. Kokanyan, E. Kokanyan, N. Babajanyan, T. Kauffmann, M. D. Fontana

Proceedings Volume 10750, Reflection, Scattering, and Diffraction from Surfaces VI; 107500K (2018) https://doi.org/10.1117/12.2318550
Event: SPIE Optical Engineering + Applications, 2018, San Diego, California, United States

Abstract

Raman measurements were carried out on Ho³⁺ doped Lithium Niobate crystals. When the excitation wavelength of 532nm is used, in addition of expected Raman modes, forbidden bands are detected, while when exciting with 785nm, “classical” Raman spectrum was recorded with expected modes according to Raman selection rules. Additional lines are attributed to emission lines of Ho doped crystals. We detect, within a very good resolution, in the same Stokes spectrum, the transitions between the electronic states, and the vibrational states as well. We report on the analysis of these data as function of Ho-content, for different polarizations and wavelengths, of the incident laser beam.

Citation Download Citation

N. Kokanyan, E. Kokanyan, N. Babajanyan, T. Kauffmann, and M. D. Fontana "Luminescence of Ho-doped lithium niobate crystals highlighted by Raman spectroscopy", Proc. SPIE 10750, Reflection, Scattering, and Diffraction from Surfaces VI, 107500K (4 September 2018); https://doi.org/10.1117/12.2318550

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KEYWORDS

Raman spectroscopy

Holmium

Crystals

Ions

Luminescence

Lithium niobate

Doping

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