Polarization dynamics in ferroelectric perovskite crystals

Thomas P. Dougherty; Gary P. Wiederrecht; Lisa Dhar; Keith A. Nelson

doi:10.1117/12.147058

17 June 1993 Polarization dynamics in ferroelectric perovskite crystals

Thomas P. Dougherty, Gary P. Wiederrecht, Lisa Dhar, Keith A. Nelson

Proceedings Volume 1861, Ultrafast Pulse Generation and Spectroscopy; (1993) https://doi.org/10.1117/12.147058
Event: OE/LASE'93: Optics, Electro-Optics, and Laser Applications in Scienceand Engineering, 1993, Los Angeles, CA, United States

Abstract

The polar low frequency vibrational and relaxational modes crucial to understanding the structure and phase transitions of ferroelectric perovskite crystals are examined using impulsive stimulated Raman scattering (ISRS). At wavevectors near the Brillouin zone center, these modes are strongly coupled to light, and the pure optic mode behavior is deduced from the wavevector dependence of the mixed phonon-polaritons.

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Thomas P. Dougherty, Gary P. Wiederrecht, Lisa Dhar, and Keith A. Nelson "Polarization dynamics in ferroelectric perovskite crystals", Proc. SPIE 1861, Ultrafast Pulse Generation and Spectroscopy, (17 June 1993); https://doi.org/10.1117/12.147058

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