255 citations · 511 across the 5 of their papers we have counts for
5 papers
Non-reciprocal second harmonic generation in ferroelectric photonic structures
Pablo Molina, Mariola O Ramirez, Basilio J. Garcia +1
Second harmonic generation is a powerful tool directly connected to the symmetry of materials. Phase transitions, lattice rotations or electromagnetic coupling in multiferroic comp…
Three-Dimensional Grain Boundary Spectroscopy in Transparent High Power Ceramic Laser Materials
Mariola O. Ramirez, Jeffrey Wisdom, Haifeng Li +8
Using confocal Raman and fluorescence spectroscopic imaging in 3-dimensions, we show direct evidence for Nd3+-Nd3+ interactions across grain boundaries (GBs) in Nd3+:YAG laser cera…
Spin-Charge-Lattice Coupling through Resonant Multi-Magnon Excitations in Multiferroic BiFeO3
M. O. Ramirez, A. Kumar, S. A. Denev +19
Spin-charge-lattice coupling mediated by multi-magnon processes is demonstrated in multiferroic BiFeO3. Experimental evidence of two and three magnons excitations as well as multim…
Linear and Nonlinear Optical constants of BiFeO_3
Amit Kumar, R. Rai, Nikolas Podraza +12
Using spectroscopic ellipsometry, the refractive index and absorption versus wavelength of the ferroelectric antiferromagnet Bismuth Ferrite, BiFeO_3 is reported. The material has…
Two-phonon coupling to the antiferromagnetic phase transition in multiferroic BiFeO3
Mariola O. Ramirez, M. Krishnamurthi, S. Denev +11
A prominent band centered at around 1000-1300 cm-1 and associated with resonant enhancement of two-phonon Raman scattering is reported in multiferroic BiFeO3 thin films and single…