Abstract
A nonlinear resonance was experimentally observed in a ruby acoustic quantum generator operating in the region of 1010 Hz with electromagnetic pumping modulated at a superlow frequency. The resonance is manifested by slow regular self-detunings in the microwave spectra of stimulated phonon emission. The self-detuning period T SD strongly depends on ΔL≡ωm-ωL, where ωm is the modulation frequency and ωL is the resonance frequency varying from 9.8 to ∼5 Hz when the magnetic field detuning grows from 0 to 60 Oe. The direction of motion of a mode cluster along the frequency axis is uniquely determined by the sign of ΔL. As the ¦ΔL¦ value decreases to 0.05 Hz, the self-detuning period increases to very large values T SD > 100 s. These large-scale collective motions take place against the background of small-scale low-frequency chaotic oscillations in intensity of the generated phonon modes, while the mode widths remain almost as narrow (<1 kHz) as those in the autonomous regime.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
