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arXiv · 2309.00167

Phonon-Mediated Third-Harmonic Generation in Diamond

Jiaoyang Zheng·Guru Khalsa·Jeffrey Moses
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Abstract

We observe strongly anisotropic third-harmonic generation mediated by resonant sum-frequency driving of Raman phonons with THz light, extending light-induced dual control of structural and optical properties in solids. Either strong enhancement or strong suppression of the third harmonic covering six orders of magnitude can be achieved, a result of interference between purely electronic and phonon-mediated contributions to the polarization field. These findings enrich capabilities for tailoring nonlinear optics via phononics and for the spectroscopy of crystalline structural dynamics.

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Jiaoyang Zheng, Guru Khalsa, Jeffrey Moses. 2023-08-31. Phonon-Mediated Third-Harmonic Generation in Diamond. https://arxiv.org/abs/2309.00167

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