Fig. 4
From: Tuning high-Q nonlinear dynamics in a disordered quantum magnet

Linear absorption as a function of transverse field at T = 0.11 K for a 202 Hz pump. a, b Measured imaginary and real susceptibilities (points) and fits to a Fano resonance as a function of transverse field for a fixed 0.3 Oe pump. Transverse-field-induced quantum tunneling tunes the resonant behavior without a corresponding increase in decoherence. c Normalized absorption as a function of frequency and transverse field. Color and z position both indicate normalized absorption