Abstract
A phase conjugate mirror utilising four-wave mixing in a magnetic system is experimentally realised for the first time. Indirect evidence of continuous-wave phase conjugation has been observed experimentally and is supported by simulations. The experiment utilises a pump-probe method to excite a four-wave mixing process. Two antennae are used to pump a region of a thin-film yttrium iron garnet waveguide with magnons of frequency f_{1} to create a spatio-temporally periodic potential. As the probe magnons of f_{mathrm {p}} impinge on the pumped region, a signal with frequency f_{mathrm {c}} = 2f_{1}-f_{mathrm {p}} is observed. The amplitude of the nonlinear signal was highly dependent on the applied magnetic field H. Width modes of the probe magnons and standing wave modes of the pump magnons were shown to affect the amplitude of the signal at f_{{rm c}}. Experimental data are compared with simulations and theory to suggest that f_{{rm c}} is a phase conjugate of f_{{rm p}}.
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.
