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Poster Session

Poster Session II

4:00 pm – 6:00 pm, Wednesday June 18 Session H00 Oregon Convention Center, Exhibit Hall E
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Raman and Coherent Raman Symmetry Specific Low-Frequency Vibrational Spectra ofLiNbO3 Single Crystals

Poster 7
Presenter: Jacob Westbrook (University of West Florida)
Authors: Gary Geier (University of West Florida), Aaron Wade (University of West Florida), Laszlo Ujj (University of West Florida)

We have measured polarization sensitive Raman and Coherent Raman Spectra [1] of

Stochiometric Lithium Niobate (LiNbO3) crystals.  The observed emission bands are related to

the symmetry species of the crystal. We explain the measurement and the signal processing

methods used to eliminate unwanted spectral response properties of the laser spectroscopy

system. These include birefringent and nonresonant background effects. We concluded that the

coherent method can significantly reduce the measurement time even if it is executed in the low

power density range relative to the spontaneous Raman recordings condition and provide much

richer information about the vibrational structure of the crystal.

[1] Vibrational Spectroscopy 108 (2020) 103056

Funding acknowledgement

We would like to thank the Office of Undergraduate Research (OUR) and the UWF Physics Department for providing partial funding for the grant.

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