Year: 2023
Type: preprint
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.
Source: arXiv (Cornell University)
Authors: Zheng, Jiaoyang, Khalsa, Guru, Moses, Jeffrey
Institutions: Cornell University, University of North Texas
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Awards: G2415270547, G5917061246
OpenAlex ID: W4386437555