New materials, techniques, and theory (3)

[LSC8-03(Invited)] Sum-frequency Excitation of Excitons and Phonons in van-der-Waals Semiconductor

*Satoshi Kusaba¹ (1. Yokohama National University)

We demonstrated sum-frequency excitations of optically inactive excitons and phonons in a van-der-Waals semiconductor transition metal dichalcongenide (TMD) by irradiating broadband near- and far-infrared pulses.