DOI: 10.1063/5.0158241 ISSN:
Anti-Stokes–Stokes Raman scattering of light from the excited Laughlin liquid
L. V. Kulik, A. S. Zhuravlev, A. V. Larionov, A. A. Zagitova, I. V. Kukushkin- Physics and Astronomy (miscellaneous)
An ensemble of neutral excitations is constructed experimentally in the Laughlin liquid at the electron filling factor 1/3. The excitations are found to induce a nonlinear optical response, manifested as a quadratic dependence of the reflection signal on the excitation power. The reported experimental results indicate that the observed effect is due to the anti-Stokes–Stokes scattering of light from the excited Laughlin liquid.